./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/du-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/du-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya --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 dc1aa558e8966dd31218aa17494259e08e3048f7220d79561139d1f3451a8f14 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:52:23,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:52:23,305 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 03:52:23,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:52:23,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:52:23,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:52:23,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:52:23,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:52:23,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:52:23,337 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:52:23,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:52:23,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:52:23,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:52:23,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:52:23,340 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:52:23,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:52:23,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:52:23,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:52:23,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:52:23,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:52:23,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:52:23,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:52:23,344 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:52:23,344 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:52:23,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:52:23,345 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:52:23,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:52:23,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:52:23,346 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:52:23,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:52:23,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:52:23,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:52:23,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:52:23,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:52:23,348 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:52:23,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:52:23,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:52:23,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:52:23,349 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:52:23,349 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:52:23,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:52:23,350 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_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc1aa558e8966dd31218aa17494259e08e3048f7220d79561139d1f3451a8f14 [2023-11-29 03:52:23,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:52:23,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:52:23,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:52:23,610 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:52:23,610 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:52:23,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/busybox-1.22.0/du-2.i [2023-11-29 03:52:28,415 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:52:28,782 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:52:28,783 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/sv-benchmarks/c/busybox-1.22.0/du-2.i [2023-11-29 03:52:28,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/data/63da90639/6737d9900c4844d69ea98a9f81b19a30/FLAG71fe6dfb3 [2023-11-29 03:52:28,825 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/data/63da90639/6737d9900c4844d69ea98a9f81b19a30 [2023-11-29 03:52:28,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:52:28,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:52:28,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:52:28,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:52:28,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:52:28,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:52:28" (1/1) ... [2023-11-29 03:52:28,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38843af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:28, skipping insertion in model container [2023-11-29 03:52:28,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:52:28" (1/1) ... [2023-11-29 03:52:28,952 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:52:30,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:52:30,232 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:52:30,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:52:30,628 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:52:30,628 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:52:30,628 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:52:30,629 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:52:30,636 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:52:30,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30 WrapperNode [2023-11-29 03:52:30,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:52:30,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:52:30,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:52:30,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:52:30,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,800 INFO L138 Inliner]: procedures = 670, calls = 592, calls flagged for inlining = 35, calls inlined = 33, statements flattened = 2283 [2023-11-29 03:52:30,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:52:30,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:52:30,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:52:30,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:52:30,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,824 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,848 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-29 03:52:30,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,849 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,981 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:52:30,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:52:30,982 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:52:30,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:52:30,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (1/1) ... [2023-11-29 03:52:30,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:52:31,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:31,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:52:31,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:52:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure vasprintf [2023-11-29 03:52:31,047 INFO L138 BoogieDeclarations]: Found implementation of procedure vasprintf [2023-11-29 03:52:31,047 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-29 03:52:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure du [2023-11-29 03:52:31,048 INFO L138 BoogieDeclarations]: Found implementation of procedure du [2023-11-29 03:52:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-29 03:52:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:52:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2023-11-29 03:52:31,049 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2023-11-29 03:52:31,049 INFO L130 BoogieDeclarations]: Found specification of procedure print [2023-11-29 03:52:31,049 INFO L138 BoogieDeclarations]: Found implementation of procedure print [2023-11-29 03:52:31,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-29 03:52:31,049 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-29 03:52:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-29 03:52:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-29 03:52:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 03:52:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 03:52:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-29 03:52:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:52:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 03:52:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:52:31,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:52:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-29 03:52:31,052 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-29 03:52:31,052 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-29 03:52:31,052 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-29 03:52:31,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-29 03:52:31,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-29 03:52:31,053 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2023-11-29 03:52:31,053 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2023-11-29 03:52:31,053 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2023-11-29 03:52:31,053 INFO L138 BoogieDeclarations]: Found implementation of procedure stat [2023-11-29 03:52:31,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-29 03:52:31,054 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-29 03:52:31,054 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:52:31,054 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:52:31,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:52:31,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 03:52:31,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-29 03:52:31,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 03:52:31,055 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg [2023-11-29 03:52:31,055 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg [2023-11-29 03:52:31,055 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-29 03:52:31,056 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-29 03:52:31,056 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-29 03:52:31,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 03:52:31,471 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:52:31,473 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:52:33,671 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:52:33,771 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:52:33,772 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-29 03:52:33,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:52:33 BoogieIcfgContainer [2023-11-29 03:52:33,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:52:33,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:52:33,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:52:33,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:52:33,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:52:28" (1/3) ... [2023-11-29 03:52:33,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313b48a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:52:33, skipping insertion in model container [2023-11-29 03:52:33,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:52:30" (2/3) ... [2023-11-29 03:52:33,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313b48a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:52:33, skipping insertion in model container [2023-11-29 03:52:33,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:52:33" (3/3) ... [2023-11-29 03:52:33,781 INFO L112 eAbstractionObserver]: Analyzing ICFG du-2.i [2023-11-29 03:52:33,799 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:52:33,800 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2023-11-29 03:52:33,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:52:33,871 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;@5a651ad2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:52:33,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2023-11-29 03:52:33,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 649 states, 516 states have (on average 1.7228682170542635) internal successors, (889), 594 states have internal predecessors, (889), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-29 03:52:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 03:52:33,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:33,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 03:52:33,887 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:33,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:33,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2205022, now seen corresponding path program 1 times [2023-11-29 03:52:33,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:33,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096851579] [2023-11-29 03:52:33,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:33,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:52:34,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:34,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096851579] [2023-11-29 03:52:34,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096851579] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:34,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:34,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 03:52:34,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977930540] [2023-11-29 03:52:34,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:34,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:52:34,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:34,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:52:34,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:52:34,343 INFO L87 Difference]: Start difference. First operand has 649 states, 516 states have (on average 1.7228682170542635) internal successors, (889), 594 states have internal predecessors, (889), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) 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) [2023-11-29 03:52:34,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:34,644 INFO L93 Difference]: Finished difference Result 1291 states and 1979 transitions. [2023-11-29 03:52:34,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:52:34,647 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 [2023-11-29 03:52:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:34,662 INFO L225 Difference]: With dead ends: 1291 [2023-11-29 03:52:34,663 INFO L226 Difference]: Without dead ends: 643 [2023-11-29 03:52:34,671 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 [2023-11-29 03:52:34,675 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 1 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:34,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1760 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:34,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2023-11-29 03:52:34,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2023-11-29 03:52:34,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 512 states have (on average 1.642578125) internal successors, (841), 594 states have internal predecessors, (841), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:34,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 921 transitions. [2023-11-29 03:52:34,764 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 921 transitions. Word has length 3 [2023-11-29 03:52:34,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:34,765 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 921 transitions. [2023-11-29 03:52:34,765 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) [2023-11-29 03:52:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 921 transitions. [2023-11-29 03:52:34,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 03:52:34,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:34,766 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-29 03:52:34,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:52:34,766 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:34,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:34,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1266125988, now seen corresponding path program 1 times [2023-11-29 03:52:34,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:34,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374365132] [2023-11-29 03:52:34,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:34,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:34,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:52:34,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:34,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374365132] [2023-11-29 03:52:34,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374365132] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:34,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011405488] [2023-11-29 03:52:34,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:34,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:34,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:34,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:35,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:52:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:35,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:52:35,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:35,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:52:35,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:35,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011405488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:35,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:35,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-29 03:52:35,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468494800] [2023-11-29 03:52:35,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:35,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:52:35,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:35,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:52:35,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:52:35,371 INFO L87 Difference]: Start difference. First operand 643 states and 921 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) [2023-11-29 03:52:35,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:35,597 INFO L93 Difference]: Finished difference Result 643 states and 921 transitions. [2023-11-29 03:52:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:52:35,598 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 [2023-11-29 03:52:35,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:35,602 INFO L225 Difference]: With dead ends: 643 [2023-11-29 03:52:35,603 INFO L226 Difference]: Without dead ends: 642 [2023-11-29 03:52:35,603 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 [2023-11-29 03:52:35,604 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 5 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:35,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1753 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:35,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-11-29 03:52:35,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2023-11-29 03:52:35,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 512 states have (on average 1.640625) internal successors, (840), 593 states have internal predecessors, (840), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:35,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 920 transitions. [2023-11-29 03:52:35,634 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 920 transitions. Word has length 6 [2023-11-29 03:52:35,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:35,635 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 920 transitions. [2023-11-29 03:52:35,635 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) [2023-11-29 03:52:35,635 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 920 transitions. [2023-11-29 03:52:35,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 03:52:35,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:35,636 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-29 03:52:35,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:52:35,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:35,841 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:35,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:35,841 INFO L85 PathProgramCache]: Analyzing trace with hash 595200795, now seen corresponding path program 1 times [2023-11-29 03:52:35,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:35,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135513325] [2023-11-29 03:52:35,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:35,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:35,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:52:35,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:35,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135513325] [2023-11-29 03:52:35,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135513325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:35,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:35,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:52:35,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428189660] [2023-11-29 03:52:35,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:35,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:52:35,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:35,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:52:35,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:52:35,978 INFO L87 Difference]: Start difference. First operand 642 states and 920 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) [2023-11-29 03:52:36,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:36,136 INFO L93 Difference]: Finished difference Result 642 states and 920 transitions. [2023-11-29 03:52:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:52:36,137 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 [2023-11-29 03:52:36,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:36,142 INFO L225 Difference]: With dead ends: 642 [2023-11-29 03:52:36,142 INFO L226 Difference]: Without dead ends: 641 [2023-11-29 03:52:36,142 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 [2023-11-29 03:52:36,143 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 0 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:36,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1754 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:52:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-11-29 03:52:36,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 639. [2023-11-29 03:52:36,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 510 states have (on average 1.6411764705882352) internal successors, (837), 590 states have internal predecessors, (837), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:36,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 917 transitions. [2023-11-29 03:52:36,170 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 917 transitions. Word has length 7 [2023-11-29 03:52:36,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:36,170 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 917 transitions. [2023-11-29 03:52:36,170 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) [2023-11-29 03:52:36,170 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 917 transitions. [2023-11-29 03:52:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 03:52:36,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:36,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:36,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:52:36,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:36,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:36,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1397505312, now seen corresponding path program 1 times [2023-11-29 03:52:36,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:36,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791989225] [2023-11-29 03:52:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:36,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:36,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 03:52:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:36,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:52:36,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:36,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791989225] [2023-11-29 03:52:36,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791989225] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:36,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707838148] [2023-11-29 03:52:36,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:36,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:36,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:36,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:36,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:52:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:36,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:52:36,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:52:36,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:36,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707838148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:36,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:36,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-29 03:52:36,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032564279] [2023-11-29 03:52:36,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:36,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:52:36,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:36,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:52:36,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:52:36,706 INFO L87 Difference]: Start difference. First operand 639 states and 917 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) [2023-11-29 03:52:36,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:36,879 INFO L93 Difference]: Finished difference Result 639 states and 917 transitions. [2023-11-29 03:52:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:52:36,880 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 [2023-11-29 03:52:36,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:36,885 INFO L225 Difference]: With dead ends: 639 [2023-11-29 03:52:36,885 INFO L226 Difference]: Without dead ends: 637 [2023-11-29 03:52:36,885 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 [2023-11-29 03:52:36,886 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 493 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:36,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1259 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:52:36,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2023-11-29 03:52:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2023-11-29 03:52:36,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 510 states have (on average 1.6372549019607843) internal successors, (835), 588 states have internal predecessors, (835), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:36,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 915 transitions. [2023-11-29 03:52:36,909 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 915 transitions. Word has length 12 [2023-11-29 03:52:36,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:36,910 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 915 transitions. [2023-11-29 03:52:36,910 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) [2023-11-29 03:52:36,910 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 915 transitions. [2023-11-29 03:52:36,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 03:52:36,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:36,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:36,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:52:37,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:37,113 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:37,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:37,114 INFO L85 PathProgramCache]: Analyzing trace with hash -372990872, now seen corresponding path program 1 times [2023-11-29 03:52:37,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:37,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880951080] [2023-11-29 03:52:37,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:37,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:37,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 03:52:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:37,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:52:37,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:37,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880951080] [2023-11-29 03:52:37,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880951080] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:37,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406228355] [2023-11-29 03:52:37,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:37,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:37,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:37,292 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:37,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:52:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:37,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:52:37,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:37,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:52:37,614 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:52:37,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406228355] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:37,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:52:37,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-29 03:52:37,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896548228] [2023-11-29 03:52:37,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:37,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:52:37,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:37,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:52:37,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:52:37,648 INFO L87 Difference]: Start difference. First operand 637 states and 915 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) [2023-11-29 03:52:37,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:37,907 INFO L93 Difference]: Finished difference Result 1278 states and 1836 transitions. [2023-11-29 03:52:37,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:52:37,908 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 [2023-11-29 03:52:37,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:37,913 INFO L225 Difference]: With dead ends: 1278 [2023-11-29 03:52:37,913 INFO L226 Difference]: Without dead ends: 646 [2023-11-29 03:52:37,915 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 [2023-11-29 03:52:37,916 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 4 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:37,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3498 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:37,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-11-29 03:52:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2023-11-29 03:52:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 519 states have (on average 1.6262042389210019) internal successors, (844), 597 states have internal predecessors, (844), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:37,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 924 transitions. [2023-11-29 03:52:37,943 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 924 transitions. Word has length 13 [2023-11-29 03:52:37,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:37,943 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 924 transitions. [2023-11-29 03:52:37,943 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) [2023-11-29 03:52:37,944 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 924 transitions. [2023-11-29 03:52:37,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 03:52:37,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:37,944 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:37,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:52:38,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:38,145 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:38,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:38,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1540892178, now seen corresponding path program 2 times [2023-11-29 03:52:38,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:38,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388298217] [2023-11-29 03:52:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:38,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:52:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:52:38,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:38,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388298217] [2023-11-29 03:52:38,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388298217] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:38,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235154162] [2023-11-29 03:52:38,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:52:38,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:38,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:38,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:38,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:52:38,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:52:38,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:52:38,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:52:38,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 03:52:38,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:38,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235154162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:38,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:38,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-29 03:52:38,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336730191] [2023-11-29 03:52:38,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:38,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:52:38,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:38,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:52:38,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:52:38,858 INFO L87 Difference]: Start difference. First operand 646 states and 924 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) [2023-11-29 03:52:39,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:39,194 INFO L93 Difference]: Finished difference Result 646 states and 924 transitions. [2023-11-29 03:52:39,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:52:39,194 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 [2023-11-29 03:52:39,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:39,198 INFO L225 Difference]: With dead ends: 646 [2023-11-29 03:52:39,198 INFO L226 Difference]: Without dead ends: 644 [2023-11-29 03:52:39,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:52:39,199 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 492 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 2937 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:39,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 2937 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:52:39,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2023-11-29 03:52:39,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2023-11-29 03:52:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 519 states have (on average 1.6223506743737957) internal successors, (842), 595 states have internal predecessors, (842), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:39,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 922 transitions. [2023-11-29 03:52:39,221 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 922 transitions. Word has length 22 [2023-11-29 03:52:39,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:39,222 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 922 transitions. [2023-11-29 03:52:39,222 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) [2023-11-29 03:52:39,222 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 922 transitions. [2023-11-29 03:52:39,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:52:39,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:39,223 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:39,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 03:52:39,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:39,425 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:39,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:39,425 INFO L85 PathProgramCache]: Analyzing trace with hash -304149465, now seen corresponding path program 1 times [2023-11-29 03:52:39,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:39,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050060391] [2023-11-29 03:52:39,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:39,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:39,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:52:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:39,577 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 03:52:39,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:39,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050060391] [2023-11-29 03:52:39,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050060391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:39,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:39,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:52:39,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369589406] [2023-11-29 03:52:39,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:39,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:52:39,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:39,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:52:39,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:52:39,579 INFO L87 Difference]: Start difference. First operand 644 states and 922 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) [2023-11-29 03:52:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:39,768 INFO L93 Difference]: Finished difference Result 1271 states and 1828 transitions. [2023-11-29 03:52:39,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:52:39,768 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 [2023-11-29 03:52:39,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:39,772 INFO L225 Difference]: With dead ends: 1271 [2023-11-29 03:52:39,772 INFO L226 Difference]: Without dead ends: 647 [2023-11-29 03:52:39,773 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 [2023-11-29 03:52:39,774 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 1 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:39,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1743 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:39,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-11-29 03:52:39,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 647. [2023-11-29 03:52:39,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 522 states have (on average 1.6187739463601531) internal successors, (845), 598 states have internal predecessors, (845), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:39,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 925 transitions. [2023-11-29 03:52:39,795 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 925 transitions. Word has length 27 [2023-11-29 03:52:39,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:39,796 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 925 transitions. [2023-11-29 03:52:39,796 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) [2023-11-29 03:52:39,796 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 925 transitions. [2023-11-29 03:52:39,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:52:39,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:39,797 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] [2023-11-29 03:52:39,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:52:39,798 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:39,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:39,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1465141533, now seen corresponding path program 1 times [2023-11-29 03:52:39,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:39,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282555891] [2023-11-29 03:52:39,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:39,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:39,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:52:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 03:52:39,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:39,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282555891] [2023-11-29 03:52:39,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282555891] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:39,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906113089] [2023-11-29 03:52:39,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:39,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:39,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:39,946 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:39,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:52:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:40,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:52:40,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:40,365 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 03:52:40,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:40,461 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 03:52:40,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906113089] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:40,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:52:40,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-29 03:52:40,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233830947] [2023-11-29 03:52:40,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:40,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:52:40,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:40,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:52:40,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:52:40,464 INFO L87 Difference]: Start difference. First operand 647 states and 925 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) [2023-11-29 03:52:40,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:40,827 INFO L93 Difference]: Finished difference Result 1297 states and 1859 transitions. [2023-11-29 03:52:40,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:52:40,828 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 [2023-11-29 03:52:40,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:40,833 INFO L225 Difference]: With dead ends: 1297 [2023-11-29 03:52:40,833 INFO L226 Difference]: Without dead ends: 664 [2023-11-29 03:52:40,835 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 [2023-11-29 03:52:40,836 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 7 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3466 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:40,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3466 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:52:40,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-11-29 03:52:40,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 664. [2023-11-29 03:52:40,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 540 states have (on average 1.5962962962962963) internal successors, (862), 615 states have internal predecessors, (862), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:40,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 942 transitions. [2023-11-29 03:52:40,877 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 942 transitions. Word has length 30 [2023-11-29 03:52:40,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:40,877 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 942 transitions. [2023-11-29 03:52:40,878 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) [2023-11-29 03:52:40,878 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 942 transitions. [2023-11-29 03:52:40,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 03:52:40,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:40,879 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] [2023-11-29 03:52:40,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:52:41,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:41,081 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:41,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:41,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1757774365, now seen corresponding path program 1 times [2023-11-29 03:52:41,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:41,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631937853] [2023-11-29 03:52:41,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:41,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:41,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:41,284 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 03:52:41,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:41,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631937853] [2023-11-29 03:52:41,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631937853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:41,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:41,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:52:41,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937047241] [2023-11-29 03:52:41,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:41,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:52:41,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:41,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:52:41,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:52:41,286 INFO L87 Difference]: Start difference. First operand 664 states and 942 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) [2023-11-29 03:52:41,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:41,490 INFO L93 Difference]: Finished difference Result 678 states and 958 transitions. [2023-11-29 03:52:41,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:52:41,491 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 [2023-11-29 03:52:41,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:41,495 INFO L225 Difference]: With dead ends: 678 [2023-11-29 03:52:41,495 INFO L226 Difference]: Without dead ends: 676 [2023-11-29 03:52:41,496 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 [2023-11-29 03:52:41,496 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 3 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:41,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1738 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:41,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2023-11-29 03:52:41,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 674. [2023-11-29 03:52:41,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 550 states have (on average 1.5909090909090908) internal successors, (875), 625 states have internal predecessors, (875), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 955 transitions. [2023-11-29 03:52:41,524 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 955 transitions. Word has length 49 [2023-11-29 03:52:41,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:41,525 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 955 transitions. [2023-11-29 03:52:41,525 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) [2023-11-29 03:52:41,525 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 955 transitions. [2023-11-29 03:52:41,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 03:52:41,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:41,526 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] [2023-11-29 03:52:41,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 03:52:41,527 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:41,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:41,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1757772636, now seen corresponding path program 1 times [2023-11-29 03:52:41,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:41,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545140995] [2023-11-29 03:52:41,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:41,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:41,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-29 03:52:41,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:41,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545140995] [2023-11-29 03:52:41,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545140995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:41,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:41,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:52:41,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599501524] [2023-11-29 03:52:41,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:41,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:52:41,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:41,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:52:41,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:52:41,726 INFO L87 Difference]: Start difference. First operand 674 states and 955 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) [2023-11-29 03:52:41,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:41,877 INFO L93 Difference]: Finished difference Result 674 states and 955 transitions. [2023-11-29 03:52:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:52:41,878 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 [2023-11-29 03:52:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:41,882 INFO L225 Difference]: With dead ends: 674 [2023-11-29 03:52:41,882 INFO L226 Difference]: Without dead ends: 673 [2023-11-29 03:52:41,882 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 [2023-11-29 03:52:41,883 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 0 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:41,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1741 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:52:41,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-11-29 03:52:41,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 669. [2023-11-29 03:52:41,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 546 states have (on average 1.5915750915750915) internal successors, (869), 620 states have internal predecessors, (869), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:41,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 949 transitions. [2023-11-29 03:52:41,903 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 949 transitions. Word has length 49 [2023-11-29 03:52:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:41,903 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 949 transitions. [2023-11-29 03:52:41,903 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) [2023-11-29 03:52:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 949 transitions. [2023-11-29 03:52:41,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 03:52:41,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:41,905 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] [2023-11-29 03:52:41,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 03:52:41,905 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:41,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:41,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1277038033, now seen corresponding path program 1 times [2023-11-29 03:52:41,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:41,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537686607] [2023-11-29 03:52:41,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:41,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:42,112 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 03:52:42,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:42,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537686607] [2023-11-29 03:52:42,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537686607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:42,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:42,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:52:42,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108157979] [2023-11-29 03:52:42,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:42,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:52:42,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:42,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:52:42,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:52:42,114 INFO L87 Difference]: Start difference. First operand 669 states and 949 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-29 03:52:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:42,353 INFO L93 Difference]: Finished difference Result 1594 states and 2315 transitions. [2023-11-29 03:52:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:52:42,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 51 [2023-11-29 03:52:42,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:42,361 INFO L225 Difference]: With dead ends: 1594 [2023-11-29 03:52:42,361 INFO L226 Difference]: Without dead ends: 985 [2023-11-29 03:52:42,363 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 [2023-11-29 03:52:42,364 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 463 mSDsluCounter, 1787 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:42,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 2704 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:42,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2023-11-29 03:52:42,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 671. [2023-11-29 03:52:42,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 548 states have (on average 1.5894160583941606) internal successors, (871), 622 states have internal predecessors, (871), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:42,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 951 transitions. [2023-11-29 03:52:42,396 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 951 transitions. Word has length 51 [2023-11-29 03:52:42,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:42,397 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 951 transitions. [2023-11-29 03:52:42,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-29 03:52:42,397 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 951 transitions. [2023-11-29 03:52:42,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 03:52:42,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:42,398 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] [2023-11-29 03:52:42,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 03:52:42,398 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:42,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:42,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1275190991, now seen corresponding path program 1 times [2023-11-29 03:52:42,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:42,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073601133] [2023-11-29 03:52:42,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:42,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:42,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:42,645 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 03:52:42,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:42,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073601133] [2023-11-29 03:52:42,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073601133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:42,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:42,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:52:42,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048097118] [2023-11-29 03:52:42,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:42,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:52:42,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:42,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:52:42,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:52:42,648 INFO L87 Difference]: Start difference. First operand 671 states and 951 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-29 03:52:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:42,869 INFO L93 Difference]: Finished difference Result 942 states and 1359 transitions. [2023-11-29 03:52:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:52:42,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 51 [2023-11-29 03:52:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:42,875 INFO L225 Difference]: With dead ends: 942 [2023-11-29 03:52:42,875 INFO L226 Difference]: Without dead ends: 940 [2023-11-29 03:52:42,876 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 [2023-11-29 03:52:42,877 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 386 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1726 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 [2023-11-29 03:52:42,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 1726 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:42,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2023-11-29 03:52:42,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 675. [2023-11-29 03:52:42,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 552 states have (on average 1.5869565217391304) internal successors, (876), 626 states have internal predecessors, (876), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:42,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 956 transitions. [2023-11-29 03:52:42,909 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 956 transitions. Word has length 51 [2023-11-29 03:52:42,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:42,909 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 956 transitions. [2023-11-29 03:52:42,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-29 03:52:42,910 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 956 transitions. [2023-11-29 03:52:42,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:52:42,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:42,911 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] [2023-11-29 03:52:42,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 03:52:42,911 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:42,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:42,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1516342538, now seen corresponding path program 1 times [2023-11-29 03:52:42,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:42,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184719100] [2023-11-29 03:52:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:43,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:43,120 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 03:52:43,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:43,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184719100] [2023-11-29 03:52:43,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184719100] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:43,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427103708] [2023-11-29 03:52:43,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:43,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:43,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:43,122 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:43,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:52:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:43,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:52:43,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 03:52:43,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:43,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427103708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:43,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:43,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-29 03:52:43,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576998015] [2023-11-29 03:52:43,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:43,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:52:43,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:43,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:52:43,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:52:43,572 INFO L87 Difference]: Start difference. First operand 675 states and 956 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (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) [2023-11-29 03:52:43,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:43,810 INFO L93 Difference]: Finished difference Result 943 states and 1361 transitions. [2023-11-29 03:52:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:52:43,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (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 55 [2023-11-29 03:52:43,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:43,817 INFO L225 Difference]: With dead ends: 943 [2023-11-29 03:52:43,817 INFO L226 Difference]: Without dead ends: 942 [2023-11-29 03:52:43,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:52:43,818 INFO L413 NwaCegarLoop]: 1252 mSDtfsCounter, 773 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:43,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 2116 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2023-11-29 03:52:43,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 674. [2023-11-29 03:52:43,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 552 states have (on average 1.585144927536232) internal successors, (875), 625 states have internal predecessors, (875), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:43,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 955 transitions. [2023-11-29 03:52:43,851 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 955 transitions. Word has length 55 [2023-11-29 03:52:43,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:43,851 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 955 transitions. [2023-11-29 03:52:43,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (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) [2023-11-29 03:52:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 955 transitions. [2023-11-29 03:52:43,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 03:52:43,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:43,852 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] [2023-11-29 03:52:43,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 03:52:44,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:44,056 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:44,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:44,056 INFO L85 PathProgramCache]: Analyzing trace with hash -238020672, now seen corresponding path program 1 times [2023-11-29 03:52:44,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:44,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475465117] [2023-11-29 03:52:44,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:44,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:44,263 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 03:52:44,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:44,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475465117] [2023-11-29 03:52:44,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475465117] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:44,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249098065] [2023-11-29 03:52:44,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:44,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:44,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:44,265 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:44,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:52:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:44,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:52:44,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:44,744 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 03:52:44,744 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:44,770 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 03:52:44,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249098065] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:44,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:52:44,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-29 03:52:44,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337752866] [2023-11-29 03:52:44,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:44,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:52:44,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:44,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:52:44,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:52:44,788 INFO L87 Difference]: Start difference. First operand 674 states and 955 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 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) [2023-11-29 03:52:45,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:45,243 INFO L93 Difference]: Finished difference Result 1747 states and 2577 transitions. [2023-11-29 03:52:45,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:52:45,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 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 56 [2023-11-29 03:52:45,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:45,254 INFO L225 Difference]: With dead ends: 1747 [2023-11-29 03:52:45,255 INFO L226 Difference]: Without dead ends: 1746 [2023-11-29 03:52:45,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:52:45,256 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 1985 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:45,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 4494 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:52:45,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2023-11-29 03:52:45,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 686. [2023-11-29 03:52:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 564 states have (on average 1.5780141843971631) internal successors, (890), 637 states have internal predecessors, (890), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:45,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 970 transitions. [2023-11-29 03:52:45,297 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 970 transitions. Word has length 56 [2023-11-29 03:52:45,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:45,298 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 970 transitions. [2023-11-29 03:52:45,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 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) [2023-11-29 03:52:45,298 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 970 transitions. [2023-11-29 03:52:45,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 03:52:45,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:45,299 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] [2023-11-29 03:52:45,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 03:52:45,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:45,500 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:45,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:45,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1102805260, now seen corresponding path program 1 times [2023-11-29 03:52:45,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:45,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103678189] [2023-11-29 03:52:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:45,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:45,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 03:52:45,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:45,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103678189] [2023-11-29 03:52:45,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103678189] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:45,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626749732] [2023-11-29 03:52:45,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:45,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:45,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:45,711 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:45,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:52:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:46,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:52:46,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:46,226 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 03:52:46,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:46,247 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 03:52:46,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626749732] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:46,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:52:46,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-29 03:52:46,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761225775] [2023-11-29 03:52:46,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:46,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:52:46,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:46,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:52:46,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:52:46,249 INFO L87 Difference]: Start difference. First operand 686 states and 970 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) [2023-11-29 03:52:46,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:46,488 INFO L93 Difference]: Finished difference Result 1347 states and 1917 transitions. [2023-11-29 03:52:46,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:52:46,489 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 [2023-11-29 03:52:46,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:46,494 INFO L225 Difference]: With dead ends: 1347 [2023-11-29 03:52:46,494 INFO L226 Difference]: Without dead ends: 704 [2023-11-29 03:52:46,496 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 [2023-11-29 03:52:46,497 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 4 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2607 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:46,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2607 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:52:46,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2023-11-29 03:52:46,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2023-11-29 03:52:46,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 582 states have (on average 1.5601374570446735) internal successors, (908), 655 states have internal predecessors, (908), 43 states have call successors, (43), 13 states have call predecessors, (43), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 03:52:46,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 988 transitions. [2023-11-29 03:52:46,532 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 988 transitions. Word has length 57 [2023-11-29 03:52:46,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:46,532 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 988 transitions. [2023-11-29 03:52:46,532 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) [2023-11-29 03:52:46,533 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 988 transitions. [2023-11-29 03:52:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:52:46,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:46,534 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] [2023-11-29 03:52:46,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:52:46,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:52:46,737 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:46,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:46,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1433354661, now seen corresponding path program 1 times [2023-11-29 03:52:46,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:46,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457495883] [2023-11-29 03:52:46,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:46,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:46,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:46,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:52:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 03:52:46,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:46,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457495883] [2023-11-29 03:52:46,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457495883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:46,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:46,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:52:46,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375152020] [2023-11-29 03:52:46,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:46,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:52:46,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:46,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:52:46,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:52:46,984 INFO L87 Difference]: Start difference. First operand 704 states and 988 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-29 03:52:49,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:49,295 INFO L93 Difference]: Finished difference Result 1432 states and 2042 transitions. [2023-11-29 03:52:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:52:49,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 64 [2023-11-29 03:52:49,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:49,302 INFO L225 Difference]: With dead ends: 1432 [2023-11-29 03:52:49,302 INFO L226 Difference]: Without dead ends: 837 [2023-11-29 03:52:49,304 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 [2023-11-29 03:52:49,305 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 208 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:49,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2241 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 03:52:49,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2023-11-29 03:52:49,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 744. [2023-11-29 03:52:49,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 621 states have (on average 1.5491143317230274) internal successors, (962), 694 states have internal predecessors, (962), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:52:49,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1044 transitions. [2023-11-29 03:52:49,377 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1044 transitions. Word has length 64 [2023-11-29 03:52:49,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:49,378 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 1044 transitions. [2023-11-29 03:52:49,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-29 03:52:49,378 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1044 transitions. [2023-11-29 03:52:49,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 03:52:49,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:49,379 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] [2023-11-29 03:52:49,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 03:52:49,379 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:49,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:49,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1230642422, now seen corresponding path program 1 times [2023-11-29 03:52:49,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:49,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241633973] [2023-11-29 03:52:49,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:49,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:49,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:52:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:49,625 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 03:52:49,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:49,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241633973] [2023-11-29 03:52:49,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241633973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:49,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:49,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:52:49,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721885696] [2023-11-29 03:52:49,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:49,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:52:49,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:49,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:52:49,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:52:49,627 INFO L87 Difference]: Start difference. First operand 744 states and 1044 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2023-11-29 03:52:51,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:51,697 INFO L93 Difference]: Finished difference Result 784 states and 1093 transitions. [2023-11-29 03:52:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:52:51,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 66 [2023-11-29 03:52:51,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:51,702 INFO L225 Difference]: With dead ends: 784 [2023-11-29 03:52:51,702 INFO L226 Difference]: Without dead ends: 782 [2023-11-29 03:52:51,703 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 [2023-11-29 03:52:51,703 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 88 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:51,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2268 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 03:52:51,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2023-11-29 03:52:51,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 744. [2023-11-29 03:52:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 621 states have (on average 1.5458937198067633) internal successors, (960), 694 states have internal predecessors, (960), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:52:51,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1042 transitions. [2023-11-29 03:52:51,738 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1042 transitions. Word has length 66 [2023-11-29 03:52:51,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:51,739 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 1042 transitions. [2023-11-29 03:52:51,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2023-11-29 03:52:51,739 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1042 transitions. [2023-11-29 03:52:51,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 03:52:51,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:51,740 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:51,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 03:52:51,741 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:51,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:51,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1301585771, now seen corresponding path program 2 times [2023-11-29 03:52:51,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:51,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074226599] [2023-11-29 03:52:51,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:51,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:52,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 03:52:52,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:52,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074226599] [2023-11-29 03:52:52,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074226599] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:52,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562040211] [2023-11-29 03:52:52,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:52:52,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:52,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:52,090 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:52,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:52:52,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:52:52,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:52:52,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:52:52,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:52,573 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2023-11-29 03:52:52,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:52:52,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562040211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:52,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:52,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-29 03:52:52,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005161613] [2023-11-29 03:52:52,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:52,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:52:52,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:52,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:52:52,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:52:52,576 INFO L87 Difference]: Start difference. First operand 744 states and 1042 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2023-11-29 03:52:52,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:52,935 INFO L93 Difference]: Finished difference Result 1414 states and 2004 transitions. [2023-11-29 03:52:52,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:52:52,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 68 [2023-11-29 03:52:52,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:52,939 INFO L225 Difference]: With dead ends: 1414 [2023-11-29 03:52:52,939 INFO L226 Difference]: Without dead ends: 744 [2023-11-29 03:52:52,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:52:52,941 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 501 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 3380 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:52,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 3380 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:52:52,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2023-11-29 03:52:52,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2023-11-29 03:52:52,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 621 states have (on average 1.5442834138486312) internal successors, (959), 694 states have internal predecessors, (959), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:52:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1041 transitions. [2023-11-29 03:52:52,975 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1041 transitions. Word has length 68 [2023-11-29 03:52:52,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:52,975 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 1041 transitions. [2023-11-29 03:52:52,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2023-11-29 03:52:52,975 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1041 transitions. [2023-11-29 03:52:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 03:52:52,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:52,976 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:52,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:52:53,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:52:53,177 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:53,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:53,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1153217434, now seen corresponding path program 2 times [2023-11-29 03:52:53,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:53,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128205155] [2023-11-29 03:52:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:53,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:53,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-29 03:52:53,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:53,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128205155] [2023-11-29 03:52:53,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128205155] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:53,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253241282] [2023-11-29 03:52:53,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:52:53,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:53,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:53,482 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:53,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:52:54,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:52:54,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:52:54,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:52:54,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:54,229 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-29 03:52:54,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:54,301 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-29 03:52:54,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253241282] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:54,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:52:54,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-29 03:52:54,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257009966] [2023-11-29 03:52:54,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:54,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:52:54,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:54,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:52:54,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:52:54,303 INFO L87 Difference]: Start difference. First operand 744 states and 1041 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 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) [2023-11-29 03:52:54,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:54,988 INFO L93 Difference]: Finished difference Result 1471 states and 2075 transitions. [2023-11-29 03:52:54,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 03:52:54,989 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 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 75 [2023-11-29 03:52:54,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:54,993 INFO L225 Difference]: With dead ends: 1471 [2023-11-29 03:52:54,993 INFO L226 Difference]: Without dead ends: 779 [2023-11-29 03:52:54,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 03:52:54,995 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 11 mSDsluCounter, 5178 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 6045 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:54,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 6045 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:52:54,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-11-29 03:52:55,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 779. [2023-11-29 03:52:55,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 657 states have (on average 1.512937595129376) internal successors, (994), 729 states have internal predecessors, (994), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:52:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1076 transitions. [2023-11-29 03:52:55,018 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1076 transitions. Word has length 75 [2023-11-29 03:52:55,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:55,018 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1076 transitions. [2023-11-29 03:52:55,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 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) [2023-11-29 03:52:55,018 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1076 transitions. [2023-11-29 03:52:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 03:52:55,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:55,019 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:55,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:52:55,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:55,220 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:55,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:55,220 INFO L85 PathProgramCache]: Analyzing trace with hash -599300714, now seen corresponding path program 1 times [2023-11-29 03:52:55,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:55,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686792915] [2023-11-29 03:52:55,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:55,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:55,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:55,555 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:52:55,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:55,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686792915] [2023-11-29 03:52:55,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686792915] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:55,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145255803] [2023-11-29 03:52:55,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:55,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:55,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:55,558 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:55,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:52:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:56,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:52:56,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:56,171 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:52:56,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:52:56,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145255803] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:52:56,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:52:56,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-29 03:52:56,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086730658] [2023-11-29 03:52:56,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:56,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:52:56,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:56,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:52:56,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:52:56,262 INFO L87 Difference]: Start difference. First operand 779 states and 1076 transitions. Second operand has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 13 states have internal predecessors, (73), 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) [2023-11-29 03:52:57,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:57,068 INFO L93 Difference]: Finished difference Result 3854 states and 5662 transitions. [2023-11-29 03:52:57,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:52:57,069 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 13 states have internal predecessors, (73), 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 103 [2023-11-29 03:52:57,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:57,087 INFO L225 Difference]: With dead ends: 3854 [2023-11-29 03:52:57,087 INFO L226 Difference]: Without dead ends: 3853 [2023-11-29 03:52:57,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:52:57,088 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 6792 mSDsluCounter, 5501 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6852 SdHoareTripleChecker+Valid, 6369 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:57,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6852 Valid, 6369 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:52:57,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2023-11-29 03:52:57,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 803. [2023-11-29 03:52:57,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 681 states have (on average 1.5036710719530102) internal successors, (1024), 753 states have internal predecessors, (1024), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:52:57,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1106 transitions. [2023-11-29 03:52:57,155 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1106 transitions. Word has length 103 [2023-11-29 03:52:57,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:57,155 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1106 transitions. [2023-11-29 03:52:57,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 13 states have internal predecessors, (73), 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) [2023-11-29 03:52:57,156 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1106 transitions. [2023-11-29 03:52:57,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 03:52:57,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:57,157 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, 1, 1, 1, 1, 1] [2023-11-29 03:52:57,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:52:57,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:57,358 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:52:57,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:57,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1596072530, now seen corresponding path program 1 times [2023-11-29 03:52:57,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:57,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390350944] [2023-11-29 03:52:57,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:57,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:57,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:52:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:57,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:52:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:52:57,630 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:52:57,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:57,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390350944] [2023-11-29 03:52:57,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390350944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:52:57,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:52:57,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:52:57,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57813119] [2023-11-29 03:52:57,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:52:57,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:52:57,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:57,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:52:57,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:52:57,633 INFO L87 Difference]: Start difference. First operand 803 states and 1106 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-11-29 03:53:00,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:53:00,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:00,894 INFO L93 Difference]: Finished difference Result 1457 states and 2066 transitions. [2023-11-29 03:53:00,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:00,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 108 [2023-11-29 03:53:00,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:00,899 INFO L225 Difference]: With dead ends: 1457 [2023-11-29 03:53:00,899 INFO L226 Difference]: Without dead ends: 914 [2023-11-29 03:53:00,900 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 [2023-11-29 03:53:00,901 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 202 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:00,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2353 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 03:53:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2023-11-29 03:53:00,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 806. [2023-11-29 03:53:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 686 states have (on average 1.498542274052478) internal successors, (1028), 756 states have internal predecessors, (1028), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:53:00,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1110 transitions. [2023-11-29 03:53:00,969 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1110 transitions. Word has length 108 [2023-11-29 03:53:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:00,970 INFO L495 AbstractCegarLoop]: Abstraction has 806 states and 1110 transitions. [2023-11-29 03:53:00,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-11-29 03:53:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1110 transitions. [2023-11-29 03:53:00,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 03:53:00,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:00,972 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, 1, 1, 1, 1, 1] [2023-11-29 03:53:00,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 03:53:00,972 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:53:00,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:00,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1595440039, now seen corresponding path program 1 times [2023-11-29 03:53:00,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:00,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559728441] [2023-11-29 03:53:00,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:00,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:01,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:53:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:01,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:53:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:53:01,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:01,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559728441] [2023-11-29 03:53:01,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559728441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:01,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:01,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39187262] [2023-11-29 03:53:01,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:01,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:01,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:01,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:01,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:01,257 INFO L87 Difference]: Start difference. First operand 806 states and 1110 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-11-29 03:53:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:03,184 INFO L93 Difference]: Finished difference Result 847 states and 1163 transitions. [2023-11-29 03:53:03,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:03,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 108 [2023-11-29 03:53:03,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:03,190 INFO L225 Difference]: With dead ends: 847 [2023-11-29 03:53:03,190 INFO L226 Difference]: Without dead ends: 844 [2023-11-29 03:53:03,190 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 [2023-11-29 03:53:03,191 INFO L413 NwaCegarLoop]: 797 mSDtfsCounter, 426 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:03,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1823 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 03:53:03,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2023-11-29 03:53:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 803. [2023-11-29 03:53:03,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 686 states have (on average 1.4941690962099126) internal successors, (1025), 753 states have internal predecessors, (1025), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:53:03,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1107 transitions. [2023-11-29 03:53:03,220 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1107 transitions. Word has length 108 [2023-11-29 03:53:03,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:03,220 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1107 transitions. [2023-11-29 03:53:03,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-11-29 03:53:03,221 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1107 transitions. [2023-11-29 03:53:03,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 03:53:03,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:03,222 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, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:03,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 03:53:03,223 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:53:03,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:03,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2061360263, now seen corresponding path program 1 times [2023-11-29 03:53:03,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:03,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306864318] [2023-11-29 03:53:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:03,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:53:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:03,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:53:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:03,443 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:53:03,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:03,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306864318] [2023-11-29 03:53:03,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306864318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:03,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:03,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:03,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811295659] [2023-11-29 03:53:03,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:03,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:03,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:03,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:03,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:03,445 INFO L87 Difference]: Start difference. First operand 803 states and 1107 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-29 03:53:05,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:05,841 INFO L93 Difference]: Finished difference Result 1462 states and 2072 transitions. [2023-11-29 03:53:05,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:05,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 109 [2023-11-29 03:53:05,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:05,846 INFO L225 Difference]: With dead ends: 1462 [2023-11-29 03:53:05,846 INFO L226 Difference]: Without dead ends: 915 [2023-11-29 03:53:05,847 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 [2023-11-29 03:53:05,847 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 322 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:05,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 2129 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 03:53:05,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2023-11-29 03:53:05,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 788. [2023-11-29 03:53:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 675 states have (on average 1.488888888888889) internal successors, (1005), 738 states have internal predecessors, (1005), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:53:05,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1087 transitions. [2023-11-29 03:53:05,876 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1087 transitions. Word has length 109 [2023-11-29 03:53:05,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:05,876 INFO L495 AbstractCegarLoop]: Abstraction has 788 states and 1087 transitions. [2023-11-29 03:53:05,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-29 03:53:05,876 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1087 transitions. [2023-11-29 03:53:05,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 03:53:05,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:05,878 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, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:05,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 03:53:05,878 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:53:05,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:05,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2080967544, now seen corresponding path program 1 times [2023-11-29 03:53:05,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:05,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122427522] [2023-11-29 03:53:05,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:05,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:06,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:53:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:06,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:53:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:06,124 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:53:06,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:06,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122427522] [2023-11-29 03:53:06,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122427522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:06,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:06,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:06,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453820275] [2023-11-29 03:53:06,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:06,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:06,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:06,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:06,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:06,126 INFO L87 Difference]: Start difference. First operand 788 states and 1087 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-29 03:53:07,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:07,956 INFO L93 Difference]: Finished difference Result 873 states and 1207 transitions. [2023-11-29 03:53:07,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:07,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 109 [2023-11-29 03:53:07,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:07,961 INFO L225 Difference]: With dead ends: 873 [2023-11-29 03:53:07,961 INFO L226 Difference]: Without dead ends: 872 [2023-11-29 03:53:07,962 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 [2023-11-29 03:53:07,962 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 454 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:07,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1950 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 03:53:07,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2023-11-29 03:53:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 787. [2023-11-29 03:53:07,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 675 states have (on average 1.4874074074074075) internal successors, (1004), 737 states have internal predecessors, (1004), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:53:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1086 transitions. [2023-11-29 03:53:07,990 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1086 transitions. Word has length 109 [2023-11-29 03:53:07,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:07,990 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 1086 transitions. [2023-11-29 03:53:07,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-29 03:53:07,990 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1086 transitions. [2023-11-29 03:53:07,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 03:53:07,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:07,992 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:07,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 03:53:07,992 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:53:07,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash 546936892, now seen corresponding path program 1 times [2023-11-29 03:53:07,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:07,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548877287] [2023-11-29 03:53:07,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:07,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:08,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:53:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:53:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:08,258 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:53:08,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:08,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548877287] [2023-11-29 03:53:08,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548877287] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:08,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016500084] [2023-11-29 03:53:08,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:08,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:08,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:08,261 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:08,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:53:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:08,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:53:08,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:08,964 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:53:08,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:53:08,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016500084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:08,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:53:08,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2023-11-29 03:53:08,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491143273] [2023-11-29 03:53:08,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:08,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:53:08,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:08,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:53:08,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:53:08,966 INFO L87 Difference]: Start difference. First operand 787 states and 1086 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 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) [2023-11-29 03:53:09,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:09,270 INFO L93 Difference]: Finished difference Result 1451 states and 2052 transitions. [2023-11-29 03:53:09,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:53:09,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 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 110 [2023-11-29 03:53:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:09,275 INFO L225 Difference]: With dead ends: 1451 [2023-11-29 03:53:09,275 INFO L226 Difference]: Without dead ends: 858 [2023-11-29 03:53:09,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:53:09,276 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 458 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 2368 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:09,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 2368 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:53:09,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-11-29 03:53:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 786. [2023-11-29 03:53:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 676 states have (on average 1.4807692307692308) internal successors, (1001), 736 states have internal predecessors, (1001), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:53:09,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1083 transitions. [2023-11-29 03:53:09,303 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1083 transitions. Word has length 110 [2023-11-29 03:53:09,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:09,303 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1083 transitions. [2023-11-29 03:53:09,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 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) [2023-11-29 03:53:09,303 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1083 transitions. [2023-11-29 03:53:09,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 03:53:09,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:09,304 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:09,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 03:53:09,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 03:53:09,505 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:53:09,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:09,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1620373535, now seen corresponding path program 1 times [2023-11-29 03:53:09,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:09,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191704072] [2023-11-29 03:53:09,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:09,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:53:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:09,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:53:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:09,717 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-29 03:53:09,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:09,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191704072] [2023-11-29 03:53:09,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191704072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:09,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:09,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:09,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863449729] [2023-11-29 03:53:09,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:09,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:09,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:09,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:09,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:09,720 INFO L87 Difference]: Start difference. First operand 786 states and 1083 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-11-29 03:53:11,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:11,352 INFO L93 Difference]: Finished difference Result 824 states and 1132 transitions. [2023-11-29 03:53:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:11,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 112 [2023-11-29 03:53:11,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:11,356 INFO L225 Difference]: With dead ends: 824 [2023-11-29 03:53:11,356 INFO L226 Difference]: Without dead ends: 823 [2023-11-29 03:53:11,356 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 [2023-11-29 03:53:11,357 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 89 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:11,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 2225 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:53:11,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2023-11-29 03:53:11,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 785. [2023-11-29 03:53:11,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 676 states have (on average 1.4792899408284024) internal successors, (1000), 735 states have internal predecessors, (1000), 44 states have call successors, (44), 13 states have call predecessors, (44), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 03:53:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1082 transitions. [2023-11-29 03:53:11,383 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1082 transitions. Word has length 112 [2023-11-29 03:53:11,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:11,383 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1082 transitions. [2023-11-29 03:53:11,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-11-29 03:53:11,383 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1082 transitions. [2023-11-29 03:53:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 03:53:11,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:11,385 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:11,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 03:53:11,385 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:53:11,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:11,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1308027011, now seen corresponding path program 1 times [2023-11-29 03:53:11,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:11,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953599090] [2023-11-29 03:53:11,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:11,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:11,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:53:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:11,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:53:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:12,051 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:53:12,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:12,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953599090] [2023-11-29 03:53:12,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953599090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:12,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:12,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:53:12,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980990553] [2023-11-29 03:53:12,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:12,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:53:12,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:12,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:53:12,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:53:12,053 INFO L87 Difference]: Start difference. First operand 785 states and 1082 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:53:14,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:14,774 INFO L93 Difference]: Finished difference Result 1445 states and 2031 transitions. [2023-11-29 03:53:14,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:53:14,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 113 [2023-11-29 03:53:14,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:14,780 INFO L225 Difference]: With dead ends: 1445 [2023-11-29 03:53:14,780 INFO L226 Difference]: Without dead ends: 823 [2023-11-29 03:53:14,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:53:14,782 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 88 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:14,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 3058 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 03:53:14,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2023-11-29 03:53:14,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 787. [2023-11-29 03:53:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 677 states have (on average 1.480059084194978) internal successors, (1002), 737 states have internal predecessors, (1002), 44 states have call successors, (44), 13 states have call predecessors, (44), 13 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2023-11-29 03:53:14,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1087 transitions. [2023-11-29 03:53:14,820 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1087 transitions. Word has length 113 [2023-11-29 03:53:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:14,820 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 1087 transitions. [2023-11-29 03:53:14,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:53:14,820 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1087 transitions. [2023-11-29 03:53:14,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 03:53:14,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:14,822 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:14,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 03:53:14,822 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:53:14,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:14,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1250214224, now seen corresponding path program 1 times [2023-11-29 03:53:14,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:14,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183796258] [2023-11-29 03:53:14,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:14,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:15,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:53:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:15,251 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 03:53:15,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:15,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183796258] [2023-11-29 03:53:15,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183796258] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:15,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448550943] [2023-11-29 03:53:15,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:15,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:15,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:15,253 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:15,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:53:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:15,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:53:15,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:15,993 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 03:53:15,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 03:53:16,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448550943] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:53:16,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:53:16,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-29 03:53:16,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120121167] [2023-11-29 03:53:16,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:16,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:53:16,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:16,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:53:16,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:53:16,071 INFO L87 Difference]: Start difference. First operand 787 states and 1087 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 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) [2023-11-29 03:53:16,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:16,304 INFO L93 Difference]: Finished difference Result 896 states and 1204 transitions. [2023-11-29 03:53:16,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:53:16,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 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 112 [2023-11-29 03:53:16,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:16,308 INFO L225 Difference]: With dead ends: 896 [2023-11-29 03:53:16,308 INFO L226 Difference]: Without dead ends: 895 [2023-11-29 03:53:16,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:53:16,309 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 6 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:16,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2567 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:53:16,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2023-11-29 03:53:16,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 892. [2023-11-29 03:53:16,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 782 states have (on average 1.4232736572890026) internal successors, (1113), 842 states have internal predecessors, (1113), 44 states have call successors, (44), 13 states have call predecessors, (44), 13 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2023-11-29 03:53:16,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1198 transitions. [2023-11-29 03:53:16,339 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1198 transitions. Word has length 112 [2023-11-29 03:53:16,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:16,339 INFO L495 AbstractCegarLoop]: Abstraction has 892 states and 1198 transitions. [2023-11-29 03:53:16,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 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) [2023-11-29 03:53:16,339 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1198 transitions. [2023-11-29 03:53:16,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 03:53:16,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:16,341 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:16,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:53:16,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 03:53:16,541 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:53:16,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:16,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1708149274, now seen corresponding path program 1 times [2023-11-29 03:53:16,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:16,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647524524] [2023-11-29 03:53:16,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:16,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:17,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:53:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:17,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:53:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:53:17,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:17,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647524524] [2023-11-29 03:53:17,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647524524] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:17,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169433037] [2023-11-29 03:53:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:17,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:17,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:17,223 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:17,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:53:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:18,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:53:18,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:18,543 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:53:18,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:53:18,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169433037] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:53:18,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:53:18,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2023-11-29 03:53:18,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784445614] [2023-11-29 03:53:18,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:18,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:53:18,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:18,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:53:18,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:53:18,631 INFO L87 Difference]: Start difference. First operand 892 states and 1198 transitions. Second operand has 11 states, 8 states have (on average 7.125) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:53:21,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:21,644 INFO L93 Difference]: Finished difference Result 1561 states and 2165 transitions. [2023-11-29 03:53:21,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:53:21,644 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.125) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 114 [2023-11-29 03:53:21,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:21,647 INFO L225 Difference]: With dead ends: 1561 [2023-11-29 03:53:21,647 INFO L226 Difference]: Without dead ends: 937 [2023-11-29 03:53:21,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:53:21,649 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 94 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 3879 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:21,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 3879 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 03:53:21,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2023-11-29 03:53:21,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 900. [2023-11-29 03:53:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 789 states have (on average 1.4271229404309251) internal successors, (1126), 849 states have internal predecessors, (1126), 44 states have call successors, (44), 14 states have call predecessors, (44), 14 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2023-11-29 03:53:21,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1210 transitions. [2023-11-29 03:53:21,681 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1210 transitions. Word has length 114 [2023-11-29 03:53:21,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:21,681 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 1210 transitions. [2023-11-29 03:53:21,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.125) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:53:21,681 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1210 transitions. [2023-11-29 03:53:21,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 03:53:21,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:21,683 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:21,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 03:53:21,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 03:53:21,884 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:53:21,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:21,884 INFO L85 PathProgramCache]: Analyzing trace with hash -705566275, now seen corresponding path program 2 times [2023-11-29 03:53:21,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:21,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131991056] [2023-11-29 03:53:21,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:21,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:22,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:53:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:22,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:53:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:22,886 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:53:22,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:22,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131991056] [2023-11-29 03:53:22,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131991056] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:22,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539824800] [2023-11-29 03:53:22,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:53:22,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:22,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:22,888 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:22,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:53:24,222 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:53:24,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:53:24,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 1259 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:53:24,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:53:24,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:53:24,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539824800] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:53:24,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:53:24,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2023-11-29 03:53:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765367813] [2023-11-29 03:53:24,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:24,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 03:53:24,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:24,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 03:53:24,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:53:24,493 INFO L87 Difference]: Start difference. First operand 900 states and 1210 transitions. Second operand has 20 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 19 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:53:30,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:30,396 INFO L93 Difference]: Finished difference Result 1583 states and 2202 transitions. [2023-11-29 03:53:30,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 03:53:30,397 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 19 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 117 [2023-11-29 03:53:30,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:30,400 INFO L225 Difference]: With dead ends: 1583 [2023-11-29 03:53:30,400 INFO L226 Difference]: Without dead ends: 951 [2023-11-29 03:53:30,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=386, Invalid=946, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 03:53:30,402 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 104 mSDsluCounter, 6359 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 7199 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:30,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 7199 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-29 03:53:30,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-11-29 03:53:30,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 909. [2023-11-29 03:53:30,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 797 states have (on average 1.4328732747804267) internal successors, (1142), 858 states have internal predecessors, (1142), 44 states have call successors, (44), 14 states have call predecessors, (44), 15 states have return successors, (42), 38 states have call predecessors, (42), 38 states have call successors, (42) [2023-11-29 03:53:30,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1228 transitions. [2023-11-29 03:53:30,434 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1228 transitions. Word has length 117 [2023-11-29 03:53:30,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:30,435 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1228 transitions. [2023-11-29 03:53:30,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 19 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:53:30,435 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1228 transitions. [2023-11-29 03:53:30,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 03:53:30,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:30,436 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:30,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:53:30,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:30,637 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:53:30,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:30,637 INFO L85 PathProgramCache]: Analyzing trace with hash 804014365, now seen corresponding path program 3 times [2023-11-29 03:53:30,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:30,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640607920] [2023-11-29 03:53:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:53:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:31,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:53:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:53:31,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:31,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640607920] [2023-11-29 03:53:31,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640607920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:31,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319253996] [2023-11-29 03:53:31,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:53:31,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:31,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:31,690 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:31,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:54:02,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 03:54:02,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:54:02,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 1140 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 03:54:02,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:54:02,612 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:54:02,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:54:03,220 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:54:03,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319253996] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:54:03,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:54:03,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 38 [2023-11-29 03:54:03,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916600845] [2023-11-29 03:54:03,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:54:03,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 03:54:03,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:54:03,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 03:54:03,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1049, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 03:54:03,222 INFO L87 Difference]: Start difference. First operand 909 states and 1228 transitions. Second operand has 38 states, 35 states have (on average 2.4) internal successors, (84), 37 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:54:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:18,111 INFO L93 Difference]: Finished difference Result 1622 states and 2270 transitions. [2023-11-29 03:54:18,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-29 03:54:18,112 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 35 states have (on average 2.4) internal successors, (84), 37 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 123 [2023-11-29 03:54:18,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:18,115 INFO L225 Difference]: With dead ends: 1622 [2023-11-29 03:54:18,115 INFO L226 Difference]: Without dead ends: 975 [2023-11-29 03:54:18,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=1430, Invalid=3826, Unknown=0, NotChecked=0, Total=5256 [2023-11-29 03:54:18,120 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 118 mSDsluCounter, 10493 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 11333 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:18,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 11333 Invalid, 2140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-11-29 03:54:18,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2023-11-29 03:54:18,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 927. [2023-11-29 03:54:18,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 815 states have (on average 1.4380368098159508) internal successors, (1172), 876 states have internal predecessors, (1172), 44 states have call successors, (44), 14 states have call predecessors, (44), 15 states have return successors, (42), 38 states have call predecessors, (42), 38 states have call successors, (42) [2023-11-29 03:54:18,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1258 transitions. [2023-11-29 03:54:18,174 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1258 transitions. Word has length 123 [2023-11-29 03:54:18,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:18,175 INFO L495 AbstractCegarLoop]: Abstraction has 927 states and 1258 transitions. [2023-11-29 03:54:18,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 35 states have (on average 2.4) internal successors, (84), 37 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:54:18,175 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1258 transitions. [2023-11-29 03:54:18,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 03:54:18,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:18,176 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 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] [2023-11-29 03:54:18,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 03:54:18,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:54:18,377 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:54:18,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:18,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1818213824, now seen corresponding path program 2 times [2023-11-29 03:54:18,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:54:18,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4740087] [2023-11-29 03:54:18,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:18,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:54:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:54:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:18,799 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:54:18,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:54:18,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4740087] [2023-11-29 03:54:18,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4740087] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:54:18,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136914359] [2023-11-29 03:54:18,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:54:18,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:54:18,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:54:18,800 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:54:18,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:54:19,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:54:19,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:54:19,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:54:19,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:54:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:54:19,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:54:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-29 03:54:19,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136914359] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:54:19,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:54:19,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-11-29 03:54:19,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912528694] [2023-11-29 03:54:19,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:54:19,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 03:54:19,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:54:19,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 03:54:19,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-29 03:54:19,825 INFO L87 Difference]: Start difference. First operand 927 states and 1258 transitions. Second operand has 25 states, 24 states have (on average 5.041666666666667) internal successors, (121), 25 states have internal predecessors, (121), 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) [2023-11-29 03:54:21,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:21,814 INFO L93 Difference]: Finished difference Result 7290 states and 10856 transitions. [2023-11-29 03:54:21,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 03:54:21,815 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.041666666666667) internal successors, (121), 25 states have internal predecessors, (121), 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 127 [2023-11-29 03:54:21,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:21,826 INFO L225 Difference]: With dead ends: 7290 [2023-11-29 03:54:21,826 INFO L226 Difference]: Without dead ends: 7289 [2023-11-29 03:54:21,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-29 03:54:21,828 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 12387 mSDsluCounter, 14321 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12519 SdHoareTripleChecker+Valid, 15173 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:21,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12519 Valid, 15173 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:54:21,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7289 states. [2023-11-29 03:54:21,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7289 to 975. [2023-11-29 03:54:21,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 863 states have (on average 1.4275782155272305) internal successors, (1232), 924 states have internal predecessors, (1232), 44 states have call successors, (44), 14 states have call predecessors, (44), 15 states have return successors, (42), 38 states have call predecessors, (42), 38 states have call successors, (42) [2023-11-29 03:54:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1318 transitions. [2023-11-29 03:54:21,902 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1318 transitions. Word has length 127 [2023-11-29 03:54:21,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:21,902 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1318 transitions. [2023-11-29 03:54:21,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.041666666666667) internal successors, (121), 25 states have internal predecessors, (121), 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) [2023-11-29 03:54:21,903 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1318 transitions. [2023-11-29 03:54:21,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 03:54:21,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:21,904 INFO L195 NwaCegarLoop]: trace histogram [22, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:54:21,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:54:22,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:54:22,104 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:54:22,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:22,105 INFO L85 PathProgramCache]: Analyzing trace with hash 809496541, now seen corresponding path program 4 times [2023-11-29 03:54:22,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:54:22,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749379592] [2023-11-29 03:54:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:22,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:54:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:23,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:54:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:23,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:54:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:24,005 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:54:24,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:54:24,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749379592] [2023-11-29 03:54:24,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749379592] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:54:24,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210893195] [2023-11-29 03:54:24,005 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:54:24,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:54:24,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:54:24,007 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:54:24,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:54:29,002 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:54:29,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:54:29,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-29 03:54:29,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:54:29,959 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:54:29,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:54:32,562 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:54:32,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210893195] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:54:32,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:54:32,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26, 26] total 74 [2023-11-29 03:54:32,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55824092] [2023-11-29 03:54:32,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:54:32,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2023-11-29 03:54:32,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:54:32,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2023-11-29 03:54:32,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1308, Invalid=4094, Unknown=0, NotChecked=0, Total=5402 [2023-11-29 03:54:32,567 INFO L87 Difference]: Start difference. First operand 975 states and 1318 transitions. Second operand has 74 states, 71 states have (on average 1.6901408450704225) internal successors, (120), 73 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:57:24,021 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification. DAG size of input: 87 DAG size of output: 24 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:57:33,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:57:44,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:44,085 INFO L93 Difference]: Finished difference Result 1742 states and 2450 transitions. [2023-11-29 03:57:44,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-11-29 03:57:44,086 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 71 states have (on average 1.6901408450704225) internal successors, (120), 73 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 135 [2023-11-29 03:57:44,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:44,088 INFO L225 Difference]: With dead ends: 1742 [2023-11-29 03:57:44,088 INFO L226 Difference]: Without dead ends: 1070 [2023-11-29 03:57:44,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4749 ImplicationChecksByTransitivity, 173.5s TimeCoverageRelationStatistics Valid=5470, Invalid=15121, Unknown=1, NotChecked=0, Total=20592 [2023-11-29 03:57:44,095 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 154 mSDsluCounter, 23680 mSDsCounter, 0 mSdLazyCounter, 5683 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 24519 SdHoareTripleChecker+Invalid, 5781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 5683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:44,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 24519 Invalid, 5781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [98 Valid, 5683 Invalid, 0 Unknown, 0 Unchecked, 21.4s Time] [2023-11-29 03:57:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2023-11-29 03:57:44,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1012. [2023-11-29 03:57:44,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 900 states have (on average 1.4366666666666668) internal successors, (1293), 961 states have internal predecessors, (1293), 44 states have call successors, (44), 14 states have call predecessors, (44), 15 states have return successors, (42), 38 states have call predecessors, (42), 38 states have call successors, (42) [2023-11-29 03:57:44,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1379 transitions. [2023-11-29 03:57:44,145 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1379 transitions. Word has length 135 [2023-11-29 03:57:44,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:44,146 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1379 transitions. [2023-11-29 03:57:44,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 71 states have (on average 1.6901408450704225) internal successors, (120), 73 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 03:57:44,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1379 transitions. [2023-11-29 03:57:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-29 03:57:44,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:44,148 INFO L195 NwaCegarLoop]: trace histogram [46, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:44,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 03:57:44,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 03:57:44,348 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-29 03:57:44,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:44,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1844781731, now seen corresponding path program 5 times [2023-11-29 03:57:44,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:44,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640487458] [2023-11-29 03:57:44,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:44,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 03:57:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 03:57:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:49,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 03:57:49,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:49,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640487458] [2023-11-29 03:57:49,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640487458] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:49,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399673250] [2023-11-29 03:57:49,324 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:57:49,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:49,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:49,325 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:49,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7824a9c-2372-4c2c-a5b9-6a47f0fc5a4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process