./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d919a8eed5bff5d7b13e529bcc3b017ee1b2504c38f6ffe9202719064bad4a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:49:56,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:49:56,972 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 22:49:56,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:49:56,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:49:57,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:49:57,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:49:57,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:49:57,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:49:57,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:49:57,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:49:57,009 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:49:57,009 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:49:57,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:49:57,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:49:57,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:49:57,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:49:57,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:49:57,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:49:57,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:49:57,013 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:49:57,014 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:49:57,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:49:57,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:49:57,015 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:49:57,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:49:57,016 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:49:57,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:49:57,017 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:49:57,017 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:49:57,018 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:49:57,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:49:57,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:49:57,018 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:49:57,019 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:49:57,019 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:49:57,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:49:57,019 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:49:57,020 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_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d919a8eed5bff5d7b13e529bcc3b017ee1b2504c38f6ffe9202719064bad4a0 [2023-11-06 22:49:57,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:49:57,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:49:57,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:49:57,370 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:49:57,371 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:49:57,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i [2023-11-06 22:50:00,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:50:01,096 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:50:01,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/sv-benchmarks/c/busybox-1.22.0/uniq-2.i [2023-11-06 22:50:01,130 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/data/c6355d075/22d9e3c6f74a484bb1e8d51b01337975/FLAG5d125bbed [2023-11-06 22:50:01,155 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/data/c6355d075/22d9e3c6f74a484bb1e8d51b01337975 [2023-11-06 22:50:01,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:50:01,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:50:01,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:50:01,171 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:50:01,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:50:01,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:50:01" (1/1) ... [2023-11-06 22:50:01,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4bd6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:01, skipping insertion in model container [2023-11-06 22:50:01,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:50:01" (1/1) ... [2023-11-06 22:50:01,317 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:50:02,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:50:02,970 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:50:03,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:50:03,461 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:50:03,462 WARN L672 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:50:03,462 WARN L672 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:50:03,462 WARN L672 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:50:03,462 WARN L672 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:50:03,462 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:50:03,463 WARN L672 CHandler]: The function close is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:50:03,463 WARN L672 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:50:03,471 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:50:03,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03 WrapperNode [2023-11-06 22:50:03,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:50:03,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:50:03,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:50:03,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:50:03,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,707 INFO L138 Inliner]: procedures = 600, calls = 436, calls flagged for inlining = 31, calls inlined = 30, statements flattened = 1854 [2023-11-06 22:50:03,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:50:03,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:50:03,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:50:03,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:50:03,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:50:03,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:50:03,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:50:03,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:50:03,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (1/1) ... [2023-11-06 22:50:03,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:50:03,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:03,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:50:03,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:50:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure xopen [2023-11-06 22:50:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure xopen [2023-11-06 22:50:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-06 22:50:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-06 22:50:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-06 22:50:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure close [2023-11-06 22:50:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-06 22:50:03,955 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-06 22:50:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-06 22:50:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:50:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 22:50:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-06 22:50:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-06 22:50:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-06 22:50:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 22:50:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:50:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:50:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 22:50:03,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:50:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:50:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:50:03,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:50:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 22:50:03,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 22:50:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-06 22:50:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-06 22:50:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:50:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:50:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2023-11-06 22:50:03,964 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2023-11-06 22:50:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:50:03,964 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:50:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:50:03,964 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:50:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:50:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:50:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-06 22:50:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:50:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-06 22:50:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-06 22:50:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:50:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-06 22:50:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-06 22:50:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-06 22:50:03,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:50:04,575 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:50:04,577 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:50:06,346 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:50:06,364 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:50:06,364 INFO L302 CfgBuilder]: Removed 32 assume(true) statements. [2023-11-06 22:50:06,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:50:06 BoogieIcfgContainer [2023-11-06 22:50:06,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:50:06,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:50:06,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:50:06,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:50:06,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:50:01" (1/3) ... [2023-11-06 22:50:06,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315d5aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:50:06, skipping insertion in model container [2023-11-06 22:50:06,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:03" (2/3) ... [2023-11-06 22:50:06,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315d5aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:50:06, skipping insertion in model container [2023-11-06 22:50:06,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:50:06" (3/3) ... [2023-11-06 22:50:06,378 INFO L112 eAbstractionObserver]: Analyzing ICFG uniq-2.i [2023-11-06 22:50:06,399 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:50:06,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2023-11-06 22:50:06,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:50:06,480 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27959bbb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:50:06,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2023-11-06 22:50:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 587 states, 473 states have (on average 1.6765327695560253) internal successors, (793), 544 states have internal predecessors, (793), 33 states have call successors, (33), 11 states have call predecessors, (33), 11 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-06 22:50:06,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:50:06,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:06,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:50:06,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:06,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:06,503 INFO L85 PathProgramCache]: Analyzing trace with hash 10745861, now seen corresponding path program 1 times [2023-11-06 22:50:06,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:06,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445565160] [2023-11-06 22:50:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:06,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:07,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:07,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445565160] [2023-11-06 22:50:07,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445565160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:07,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:07,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:50:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495759462] [2023-11-06 22:50:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:07,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:50:07,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:07,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:50:07,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:50:07,129 INFO L87 Difference]: Start difference. First operand has 587 states, 473 states have (on average 1.6765327695560253) internal successors, (793), 544 states have internal predecessors, (793), 33 states have call successors, (33), 11 states have call predecessors, (33), 11 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:50:07,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:07,280 INFO L93 Difference]: Finished difference Result 1155 states and 1724 transitions. [2023-11-06 22:50:07,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:50:07,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-06 22:50:07,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:07,302 INFO L225 Difference]: With dead ends: 1155 [2023-11-06 22:50:07,307 INFO L226 Difference]: Without dead ends: 557 [2023-11-06 22:50:07,316 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 [2023-11-06 22:50:07,320 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 1 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:07,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1564 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-06 22:50:07,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2023-11-06 22:50:07,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 452 states have (on average 1.573008849557522) internal successors, (711), 524 states have internal predecessors, (711), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 767 transitions. [2023-11-06 22:50:07,435 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 767 transitions. Word has length 4 [2023-11-06 22:50:07,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:07,435 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 767 transitions. [2023-11-06 22:50:07,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:50:07,436 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 767 transitions. [2023-11-06 22:50:07,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:50:07,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:07,436 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-06 22:50:07,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:50:07,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:07,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:07,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1992240854, now seen corresponding path program 1 times [2023-11-06 22:50:07,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:07,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735390507] [2023-11-06 22:50:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:07,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:07,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:07,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735390507] [2023-11-06 22:50:07,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735390507] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:07,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165311121] [2023-11-06 22:50:07,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:07,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:07,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:07,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:07,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:50:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:08,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:50:08,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:08,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:08,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:50:08,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165311121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:08,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:50:08,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:50:08,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939045049] [2023-11-06 22:50:08,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:08,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:50:08,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:08,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:50:08,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:08,133 INFO L87 Difference]: Start difference. First operand 557 states and 767 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:50:08,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:08,212 INFO L93 Difference]: Finished difference Result 557 states and 767 transitions. [2023-11-06 22:50:08,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:50:08,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 22:50:08,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:08,218 INFO L225 Difference]: With dead ends: 557 [2023-11-06 22:50:08,219 INFO L226 Difference]: Without dead ends: 556 [2023-11-06 22:50:08,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:08,221 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 3 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:08,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2270 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:08,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-11-06 22:50:08,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-11-06 22:50:08,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 452 states have (on average 1.5707964601769913) internal successors, (710), 523 states have internal predecessors, (710), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:08,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 766 transitions. [2023-11-06 22:50:08,262 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 766 transitions. Word has length 7 [2023-11-06 22:50:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:08,263 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 766 transitions. [2023-11-06 22:50:08,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:50:08,263 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 766 transitions. [2023-11-06 22:50:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:50:08,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:08,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-06 22:50:08,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:08,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:08,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:08,474 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:08,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1629923966, now seen corresponding path program 1 times [2023-11-06 22:50:08,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:08,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095427867] [2023-11-06 22:50:08,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:08,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:50:08,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:08,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095427867] [2023-11-06 22:50:08,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095427867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:08,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:08,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:50:08,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39006162] [2023-11-06 22:50:08,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:08,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:50:08,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:08,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:50:08,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:50:08,648 INFO L87 Difference]: Start difference. First operand 556 states and 766 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:50:08,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:08,683 INFO L93 Difference]: Finished difference Result 556 states and 766 transitions. [2023-11-06 22:50:08,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:50:08,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-06 22:50:08,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:08,688 INFO L225 Difference]: With dead ends: 556 [2023-11-06 22:50:08,688 INFO L226 Difference]: Without dead ends: 555 [2023-11-06 22:50:08,689 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 [2023-11-06 22:50:08,695 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 0 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:08,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1515 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:08,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-11-06 22:50:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 553. [2023-11-06 22:50:08,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 450 states have (on average 1.5711111111111111) internal successors, (707), 520 states have internal predecessors, (707), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 763 transitions. [2023-11-06 22:50:08,725 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 763 transitions. Word has length 8 [2023-11-06 22:50:08,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:08,726 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 763 transitions. [2023-11-06 22:50:08,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:50:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 763 transitions. [2023-11-06 22:50:08,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:50:08,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:08,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:08,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:50:08,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:08,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:08,729 INFO L85 PathProgramCache]: Analyzing trace with hash 552543510, now seen corresponding path program 1 times [2023-11-06 22:50:08,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:08,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994305653] [2023-11-06 22:50:08,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:08,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:08,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:50:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:08,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:08,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994305653] [2023-11-06 22:50:08,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994305653] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:08,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222182393] [2023-11-06 22:50:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:08,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:08,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:08,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:08,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:50:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:09,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:50:09,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:09,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:50:09,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:50:09,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222182393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:09,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:50:09,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-06 22:50:09,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406682815] [2023-11-06 22:50:09,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:09,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:50:09,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:09,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:50:09,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:09,286 INFO L87 Difference]: Start difference. First operand 553 states and 763 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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) [2023-11-06 22:50:09,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:09,354 INFO L93 Difference]: Finished difference Result 553 states and 763 transitions. [2023-11-06 22:50:09,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:50:09,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 13 [2023-11-06 22:50:09,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:09,360 INFO L225 Difference]: With dead ends: 553 [2023-11-06 22:50:09,360 INFO L226 Difference]: Without dead ends: 551 [2023-11-06 22:50:09,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:09,362 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 564 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:09,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 929 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-06 22:50:09,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2023-11-06 22:50:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 450 states have (on average 1.5666666666666667) internal successors, (705), 518 states have internal predecessors, (705), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 761 transitions. [2023-11-06 22:50:09,391 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 761 transitions. Word has length 13 [2023-11-06 22:50:09,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:09,393 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 761 transitions. [2023-11-06 22:50:09,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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) [2023-11-06 22:50:09,393 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 761 transitions. [2023-11-06 22:50:09,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:50:09,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:09,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:09,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:09,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:09,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:09,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:09,603 INFO L85 PathProgramCache]: Analyzing trace with hash -51020001, now seen corresponding path program 1 times [2023-11-06 22:50:09,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:09,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939942551] [2023-11-06 22:50:09,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:09,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:09,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:50:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:09,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:09,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:09,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939942551] [2023-11-06 22:50:09,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939942551] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:09,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698179411] [2023-11-06 22:50:09,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:09,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:09,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:09,761 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:09,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:50:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:10,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:50:10,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:10,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:10,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:10,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:10,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698179411] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:10,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:50:10,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:50:10,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604535622] [2023-11-06 22:50:10,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:10,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:50:10,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:10,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:50:10,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:10,131 INFO L87 Difference]: Start difference. First operand 551 states and 761 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-11-06 22:50:10,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:10,223 INFO L93 Difference]: Finished difference Result 1105 states and 1527 transitions. [2023-11-06 22:50:10,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:50:10,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 14 [2023-11-06 22:50:10,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:10,228 INFO L225 Difference]: With dead ends: 1105 [2023-11-06 22:50:10,228 INFO L226 Difference]: Without dead ends: 560 [2023-11-06 22:50:10,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:10,231 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 4 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:10,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2265 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:10,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-11-06 22:50:10,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2023-11-06 22:50:10,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 459 states have (on average 1.5555555555555556) internal successors, (714), 527 states have internal predecessors, (714), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:10,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 770 transitions. [2023-11-06 22:50:10,258 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 770 transitions. Word has length 14 [2023-11-06 22:50:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:10,258 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 770 transitions. [2023-11-06 22:50:10,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-11-06 22:50:10,259 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 770 transitions. [2023-11-06 22:50:10,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 22:50:10,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:10,260 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:10,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:10,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:10,467 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:10,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:10,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1129760804, now seen corresponding path program 2 times [2023-11-06 22:50:10,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:10,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129155744] [2023-11-06 22:50:10,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:10,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:10,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:50:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:10,740 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:50:10,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:10,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129155744] [2023-11-06 22:50:10,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129155744] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:10,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179029336] [2023-11-06 22:50:10,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:50:10,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:10,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:10,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:10,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:50:11,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:50:11,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:50:11,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:50:11,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:11,113 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:50:11,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:50:11,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179029336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:11,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:50:11,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-06 22:50:11,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114473449] [2023-11-06 22:50:11,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:11,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:50:11,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:11,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:50:11,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:50:11,117 INFO L87 Difference]: Start difference. First operand 560 states and 770 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:50:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:11,285 INFO L93 Difference]: Finished difference Result 560 states and 770 transitions. [2023-11-06 22:50:11,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:50:11,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-06 22:50:11,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:11,290 INFO L225 Difference]: With dead ends: 560 [2023-11-06 22:50:11,291 INFO L226 Difference]: Without dead ends: 558 [2023-11-06 22:50:11,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:50:11,292 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 563 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2388 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:11,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 2388 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:50:11,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-06 22:50:11,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2023-11-06 22:50:11,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 459 states have (on average 1.55119825708061) internal successors, (712), 525 states have internal predecessors, (712), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:11,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 768 transitions. [2023-11-06 22:50:11,326 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 768 transitions. Word has length 23 [2023-11-06 22:50:11,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:11,327 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 768 transitions. [2023-11-06 22:50:11,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:50:11,327 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 768 transitions. [2023-11-06 22:50:11,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-06 22:50:11,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:11,329 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:11,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:11,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:50:11,536 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:11,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:11,537 INFO L85 PathProgramCache]: Analyzing trace with hash -26586466, now seen corresponding path program 1 times [2023-11-06 22:50:11,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:11,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969792278] [2023-11-06 22:50:11,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:11,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:11,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:50:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:50:11,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:11,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969792278] [2023-11-06 22:50:11,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969792278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:11,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:11,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:50:11,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626574975] [2023-11-06 22:50:11,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:11,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:50:11,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:11,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:50:11,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:50:11,767 INFO L87 Difference]: Start difference. First operand 558 states and 768 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-06 22:50:11,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:11,830 INFO L93 Difference]: Finished difference Result 1098 states and 1519 transitions. [2023-11-06 22:50:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:50:11,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 28 [2023-11-06 22:50:11,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:11,835 INFO L225 Difference]: With dead ends: 1098 [2023-11-06 22:50:11,836 INFO L226 Difference]: Without dead ends: 561 [2023-11-06 22:50:11,837 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 [2023-11-06 22:50:11,838 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 1 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:11,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1504 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:11,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-06 22:50:11,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-11-06 22:50:11,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 462 states have (on average 1.5476190476190477) internal successors, (715), 528 states have internal predecessors, (715), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 771 transitions. [2023-11-06 22:50:11,874 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 771 transitions. Word has length 28 [2023-11-06 22:50:11,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:11,874 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 771 transitions. [2023-11-06 22:50:11,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-06 22:50:11,875 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 771 transitions. [2023-11-06 22:50:11,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-06 22:50:11,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:11,877 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:11,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:50:11,877 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:11,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:11,878 INFO L85 PathProgramCache]: Analyzing trace with hash 218930848, now seen corresponding path program 1 times [2023-11-06 22:50:11,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:11,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006611103] [2023-11-06 22:50:11,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:11,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:12,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:50:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:12,199 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:50:12,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:12,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006611103] [2023-11-06 22:50:12,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006611103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:12,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:12,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:50:12,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385089531] [2023-11-06 22:50:12,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:12,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:50:12,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:12,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:50:12,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:50:12,202 INFO L87 Difference]: Start difference. First operand 561 states and 771 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (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) [2023-11-06 22:50:12,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:12,296 INFO L93 Difference]: Finished difference Result 847 states and 1196 transitions. [2023-11-06 22:50:12,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:50:12,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (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 30 [2023-11-06 22:50:12,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:12,302 INFO L225 Difference]: With dead ends: 847 [2023-11-06 22:50:12,302 INFO L226 Difference]: Without dead ends: 845 [2023-11-06 22:50:12,303 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 [2023-11-06 22:50:12,304 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 399 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:12,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1492 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:12,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-11-06 22:50:12,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 565. [2023-11-06 22:50:12,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 466 states have (on average 1.5450643776824033) internal successors, (720), 532 states have internal predecessors, (720), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 776 transitions. [2023-11-06 22:50:12,345 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 776 transitions. Word has length 30 [2023-11-06 22:50:12,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:12,345 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 776 transitions. [2023-11-06 22:50:12,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (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) [2023-11-06 22:50:12,346 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 776 transitions. [2023-11-06 22:50:12,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-06 22:50:12,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:12,347 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, 1] [2023-11-06 22:50:12,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:50:12,348 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:12,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:12,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1763031085, now seen corresponding path program 1 times [2023-11-06 22:50:12,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:12,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087089685] [2023-11-06 22:50:12,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:12,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:12,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:50:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:50:12,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:12,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087089685] [2023-11-06 22:50:12,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087089685] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:12,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056383202] [2023-11-06 22:50:12,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:12,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:12,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:12,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:12,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:50:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:12,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:50:12,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:13,042 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:50:13,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:50:13,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056383202] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:13,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:50:13,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-06 22:50:13,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231422972] [2023-11-06 22:50:13,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:13,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:50:13,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:13,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:50:13,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:50:13,171 INFO L87 Difference]: Start difference. First operand 565 states and 776 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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) [2023-11-06 22:50:13,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:13,360 INFO L93 Difference]: Finished difference Result 1132 states and 1560 transitions. [2023-11-06 22:50:13,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:50:13,361 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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 31 [2023-11-06 22:50:13,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:13,365 INFO L225 Difference]: With dead ends: 1132 [2023-11-06 22:50:13,365 INFO L226 Difference]: Without dead ends: 582 [2023-11-06 22:50:13,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:50:13,368 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 7 mSDsluCounter, 3730 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4479 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:13,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4479 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:50:13,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-11-06 22:50:13,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2023-11-06 22:50:13,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 484 states have (on average 1.5227272727272727) internal successors, (737), 549 states have internal predecessors, (737), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:13,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 793 transitions. [2023-11-06 22:50:13,404 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 793 transitions. Word has length 31 [2023-11-06 22:50:13,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:13,405 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 793 transitions. [2023-11-06 22:50:13,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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) [2023-11-06 22:50:13,405 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 793 transitions. [2023-11-06 22:50:13,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:50:13,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:13,407 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] [2023-11-06 22:50:13,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:13,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:13,615 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:13,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:13,616 INFO L85 PathProgramCache]: Analyzing trace with hash -991831302, now seen corresponding path program 1 times [2023-11-06 22:50:13,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:13,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117125201] [2023-11-06 22:50:13,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:13,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:13,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:13,827 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:50:13,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:13,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117125201] [2023-11-06 22:50:13,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117125201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:13,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:13,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:50:13,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942331883] [2023-11-06 22:50:13,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:13,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:50:13,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:13,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:50:13,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:50:13,830 INFO L87 Difference]: Start difference. First operand 582 states and 793 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-06 22:50:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:13,908 INFO L93 Difference]: Finished difference Result 596 states and 809 transitions. [2023-11-06 22:50:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:50:13,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2023-11-06 22:50:13,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:13,913 INFO L225 Difference]: With dead ends: 596 [2023-11-06 22:50:13,914 INFO L226 Difference]: Without dead ends: 594 [2023-11-06 22:50:13,914 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 [2023-11-06 22:50:13,915 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 3 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:13,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1499 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:13,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-11-06 22:50:13,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 592. [2023-11-06 22:50:13,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 494 states have (on average 1.5182186234817814) internal successors, (750), 559 states have internal predecessors, (750), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:13,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 806 transitions. [2023-11-06 22:50:13,949 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 806 transitions. Word has length 50 [2023-11-06 22:50:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:13,950 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 806 transitions. [2023-11-06 22:50:13,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-06 22:50:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 806 transitions. [2023-11-06 22:50:13,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:50:13,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:13,952 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] [2023-11-06 22:50:13,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:50:13,952 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:13,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:13,953 INFO L85 PathProgramCache]: Analyzing trace with hash -991829573, now seen corresponding path program 1 times [2023-11-06 22:50:13,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:13,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473389909] [2023-11-06 22:50:13,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:13,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:50:14,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:14,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473389909] [2023-11-06 22:50:14,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473389909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:14,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:14,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:50:14,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480385835] [2023-11-06 22:50:14,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:14,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:50:14,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:14,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:50:14,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:50:14,166 INFO L87 Difference]: Start difference. First operand 592 states and 806 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-06 22:50:14,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:14,212 INFO L93 Difference]: Finished difference Result 592 states and 806 transitions. [2023-11-06 22:50:14,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:50:14,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2023-11-06 22:50:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:14,217 INFO L225 Difference]: With dead ends: 592 [2023-11-06 22:50:14,217 INFO L226 Difference]: Without dead ends: 591 [2023-11-06 22:50:14,217 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 [2023-11-06 22:50:14,218 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 0 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:14,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1502 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:14,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-11-06 22:50:14,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 587. [2023-11-06 22:50:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 490 states have (on average 1.5183673469387755) internal successors, (744), 554 states have internal predecessors, (744), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:14,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 800 transitions. [2023-11-06 22:50:14,255 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 800 transitions. Word has length 50 [2023-11-06 22:50:14,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:14,256 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 800 transitions. [2023-11-06 22:50:14,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-06 22:50:14,256 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 800 transitions. [2023-11-06 22:50:14,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-06 22:50:14,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:14,258 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] [2023-11-06 22:50:14,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:50:14,258 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:14,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:14,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1301418073, now seen corresponding path program 1 times [2023-11-06 22:50:14,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:14,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069176143] [2023-11-06 22:50:14,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:14,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:14,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:14,572 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:50:14,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:14,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069176143] [2023-11-06 22:50:14,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069176143] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:14,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261897425] [2023-11-06 22:50:14,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:14,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:14,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:14,574 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:14,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:50:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:15,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:50:15,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:15,073 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:50:15,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:50:15,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261897425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:15,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:50:15,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:50:15,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145861542] [2023-11-06 22:50:15,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:15,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:50:15,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:15,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:50:15,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:15,075 INFO L87 Difference]: Start difference. First operand 587 states and 800 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-11-06 22:50:15,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:15,206 INFO L93 Difference]: Finished difference Result 871 states and 1224 transitions. [2023-11-06 22:50:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:50:15,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 52 [2023-11-06 22:50:15,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:15,212 INFO L225 Difference]: With dead ends: 871 [2023-11-06 22:50:15,213 INFO L226 Difference]: Without dead ends: 870 [2023-11-06 22:50:15,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:15,214 INFO L413 NwaCegarLoop]: 1161 mSDtfsCounter, 798 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:15,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 2256 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:50:15,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2023-11-06 22:50:15,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 586. [2023-11-06 22:50:15,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 490 states have (on average 1.5163265306122449) internal successors, (743), 553 states have internal predecessors, (743), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:15,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 799 transitions. [2023-11-06 22:50:15,255 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 799 transitions. Word has length 52 [2023-11-06 22:50:15,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:15,255 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 799 transitions. [2023-11-06 22:50:15,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-11-06 22:50:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 799 transitions. [2023-11-06 22:50:15,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-06 22:50:15,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:15,257 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] [2023-11-06 22:50:15,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:15,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:50:15,465 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:15,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:15,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1689255024, now seen corresponding path program 1 times [2023-11-06 22:50:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:15,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778319518] [2023-11-06 22:50:15,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:15,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:15,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:15,714 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:50:15,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:15,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778319518] [2023-11-06 22:50:15,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778319518] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:15,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127564069] [2023-11-06 22:50:15,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:15,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:15,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:15,717 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:15,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:50:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:16,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:50:16,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:16,196 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:50:16,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:16,228 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:50:16,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127564069] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:16,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:50:16,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:50:16,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836328188] [2023-11-06 22:50:16,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:16,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:50:16,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:16,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:50:16,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:16,232 INFO L87 Difference]: Start difference. First operand 586 states and 799 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 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) [2023-11-06 22:50:16,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:16,578 INFO L93 Difference]: Finished difference Result 1719 states and 2489 transitions. [2023-11-06 22:50:16,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:50:16,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 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 53 [2023-11-06 22:50:16,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:16,590 INFO L225 Difference]: With dead ends: 1719 [2023-11-06 22:50:16,591 INFO L226 Difference]: Without dead ends: 1718 [2023-11-06 22:50:16,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:16,593 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 1996 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:16,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2028 Valid, 3805 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:50:16,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2023-11-06 22:50:16,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 598. [2023-11-06 22:50:16,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 502 states have (on average 1.5099601593625498) internal successors, (758), 565 states have internal predecessors, (758), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:16,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 814 transitions. [2023-11-06 22:50:16,647 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 814 transitions. Word has length 53 [2023-11-06 22:50:16,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:16,648 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 814 transitions. [2023-11-06 22:50:16,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 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) [2023-11-06 22:50:16,648 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 814 transitions. [2023-11-06 22:50:16,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:50:16,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:16,649 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, 1] [2023-11-06 22:50:16,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:16,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:50:16,858 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:16,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:16,858 INFO L85 PathProgramCache]: Analyzing trace with hash -811502173, now seen corresponding path program 1 times [2023-11-06 22:50:16,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:16,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992205195] [2023-11-06 22:50:16,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:16,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,088 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:50:17,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:17,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992205195] [2023-11-06 22:50:17,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992205195] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:17,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954401009] [2023-11-06 22:50:17,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:17,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:17,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:17,091 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:17,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:50:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:17,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:50:17,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:50:17,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:17,595 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:50:17,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954401009] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:17,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:50:17,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:50:17,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299681975] [2023-11-06 22:50:17,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:17,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:50:17,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:17,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:50:17,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:17,598 INFO L87 Difference]: Start difference. First operand 598 states and 814 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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) [2023-11-06 22:50:17,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:17,727 INFO L93 Difference]: Finished difference Result 1170 states and 1604 transitions. [2023-11-06 22:50:17,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:50:17,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 58 [2023-11-06 22:50:17,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:17,732 INFO L225 Difference]: With dead ends: 1170 [2023-11-06 22:50:17,732 INFO L226 Difference]: Without dead ends: 616 [2023-11-06 22:50:17,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:17,734 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 4 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:17,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3744 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:50:17,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-11-06 22:50:17,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2023-11-06 22:50:17,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 520 states have (on average 1.4923076923076923) internal successors, (776), 583 states have internal predecessors, (776), 33 states have call successors, (33), 11 states have call predecessors, (33), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:50:17,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 832 transitions. [2023-11-06 22:50:17,776 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 832 transitions. Word has length 58 [2023-11-06 22:50:17,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:17,777 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 832 transitions. [2023-11-06 22:50:17,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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) [2023-11-06 22:50:17,777 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 832 transitions. [2023-11-06 22:50:17,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-06 22:50:17,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:17,778 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:50:17,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:17,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:50:17,986 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:17,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:17,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1232395668, now seen corresponding path program 1 times [2023-11-06 22:50:17,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:17,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782931117] [2023-11-06 22:50:17,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:17,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:18,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:18,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 22:50:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:18,262 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:50:18,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:18,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782931117] [2023-11-06 22:50:18,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782931117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:18,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:18,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:50:18,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388896748] [2023-11-06 22:50:18,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:18,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:50:18,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:18,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:50:18,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:50:18,265 INFO L87 Difference]: Start difference. First operand 616 states and 832 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-06 22:50:19,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:19,013 INFO L93 Difference]: Finished difference Result 1260 states and 1739 transitions. [2023-11-06 22:50:19,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:50:19,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 62 [2023-11-06 22:50:19,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:19,021 INFO L225 Difference]: With dead ends: 1260 [2023-11-06 22:50:19,021 INFO L226 Difference]: Without dead ends: 748 [2023-11-06 22:50:19,022 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 [2023-11-06 22:50:19,023 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 180 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:19,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1921 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:50:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-06 22:50:19,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 657. [2023-11-06 22:50:19,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 560 states have (on average 1.4839285714285715) internal successors, (831), 623 states have internal predecessors, (831), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:19,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 889 transitions. [2023-11-06 22:50:19,071 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 889 transitions. Word has length 62 [2023-11-06 22:50:19,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:19,072 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 889 transitions. [2023-11-06 22:50:19,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-06 22:50:19,072 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 889 transitions. [2023-11-06 22:50:19,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:50:19,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:19,073 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] [2023-11-06 22:50:19,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:50:19,074 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:19,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:19,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1078751729, now seen corresponding path program 1 times [2023-11-06 22:50:19,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:19,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264720818] [2023-11-06 22:50:19,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:19,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:19,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 22:50:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:19,328 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:50:19,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:19,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264720818] [2023-11-06 22:50:19,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264720818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:19,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:19,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:50:19,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274631783] [2023-11-06 22:50:19,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:19,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:50:19,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:19,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:50:19,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:50:19,331 INFO L87 Difference]: Start difference. First operand 657 states and 889 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-06 22:50:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:19,961 INFO L93 Difference]: Finished difference Result 693 states and 937 transitions. [2023-11-06 22:50:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:50:19,962 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), 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 64 [2023-11-06 22:50:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:19,967 INFO L225 Difference]: With dead ends: 693 [2023-11-06 22:50:19,967 INFO L226 Difference]: Without dead ends: 691 [2023-11-06 22:50:19,968 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 [2023-11-06 22:50:19,969 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 57 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:19,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1989 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:50:19,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-11-06 22:50:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 657. [2023-11-06 22:50:20,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 560 states have (on average 1.480357142857143) internal successors, (829), 623 states have internal predecessors, (829), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:20,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 887 transitions. [2023-11-06 22:50:20,015 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 887 transitions. Word has length 64 [2023-11-06 22:50:20,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:20,016 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 887 transitions. [2023-11-06 22:50:20,016 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), 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) [2023-11-06 22:50:20,016 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 887 transitions. [2023-11-06 22:50:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-06 22:50:20,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:20,017 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] [2023-11-06 22:50:20,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:50:20,018 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:20,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:20,018 INFO L85 PathProgramCache]: Analyzing trace with hash -825602939, now seen corresponding path program 2 times [2023-11-06 22:50:20,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:20,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524195700] [2023-11-06 22:50:20,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:20,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:20,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:50:20,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:20,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524195700] [2023-11-06 22:50:20,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524195700] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:20,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908812870] [2023-11-06 22:50:20,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:50:20,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:20,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:20,429 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:20,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:50:20,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:50:20,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:50:20,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:50:20,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:20,997 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2023-11-06 22:50:20,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:50:20,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908812870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:20,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:50:20,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-06 22:50:20,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240208202] [2023-11-06 22:50:20,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:20,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:50:20,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:21,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:50:21,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:50:21,000 INFO L87 Difference]: Start difference. First operand 657 states and 887 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2023-11-06 22:50:21,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:21,264 INFO L93 Difference]: Finished difference Result 1239 states and 1693 transitions. [2023-11-06 22:50:21,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:50:21,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-11-06 22:50:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:21,269 INFO L225 Difference]: With dead ends: 1239 [2023-11-06 22:50:21,269 INFO L226 Difference]: Without dead ends: 657 [2023-11-06 22:50:21,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:50:21,272 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 564 mSDsluCounter, 2354 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:21,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 3091 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:50:21,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2023-11-06 22:50:21,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2023-11-06 22:50:21,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 560 states have (on average 1.4785714285714286) internal successors, (828), 623 states have internal predecessors, (828), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 886 transitions. [2023-11-06 22:50:21,317 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 886 transitions. Word has length 65 [2023-11-06 22:50:21,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:21,317 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 886 transitions. [2023-11-06 22:50:21,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2023-11-06 22:50:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 886 transitions. [2023-11-06 22:50:21,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:50:21,319 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:21,319 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, 1] [2023-11-06 22:50:21,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:21,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-06 22:50:21,527 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:21,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:21,527 INFO L85 PathProgramCache]: Analyzing trace with hash -841438447, now seen corresponding path program 2 times [2023-11-06 22:50:21,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:21,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258663126] [2023-11-06 22:50:21,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:21,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:21,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-06 22:50:21,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:21,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258663126] [2023-11-06 22:50:21,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258663126] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:21,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591134537] [2023-11-06 22:50:21,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:50:21,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:21,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:21,930 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:21,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:50:22,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:50:22,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:50:22,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:50:22,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-06 22:50:22,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-06 22:50:22,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591134537] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:22,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:50:22,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-06 22:50:22,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028371515] [2023-11-06 22:50:22,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:22,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:50:22,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:22,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:50:22,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:50:22,730 INFO L87 Difference]: Start difference. First operand 657 states and 886 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 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) [2023-11-06 22:50:23,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:23,224 INFO L93 Difference]: Finished difference Result 1296 states and 1764 transitions. [2023-11-06 22:50:23,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:50:23,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 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 76 [2023-11-06 22:50:23,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:23,229 INFO L225 Difference]: With dead ends: 1296 [2023-11-06 22:50:23,229 INFO L226 Difference]: Without dead ends: 692 [2023-11-06 22:50:23,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 22:50:23,232 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 11 mSDsluCounter, 4458 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5206 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:23,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5206 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:50:23,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2023-11-06 22:50:23,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2023-11-06 22:50:23,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 596 states have (on average 1.4479865771812082) internal successors, (863), 658 states have internal predecessors, (863), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:23,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 921 transitions. [2023-11-06 22:50:23,278 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 921 transitions. Word has length 76 [2023-11-06 22:50:23,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:23,278 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 921 transitions. [2023-11-06 22:50:23,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 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) [2023-11-06 22:50:23,279 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 921 transitions. [2023-11-06 22:50:23,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 22:50:23,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:23,280 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] [2023-11-06 22:50:23,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:23,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-06 22:50:23,489 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:23,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:23,490 INFO L85 PathProgramCache]: Analyzing trace with hash -68635865, now seen corresponding path program 1 times [2023-11-06 22:50:23,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:23,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40808379] [2023-11-06 22:50:23,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:23,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:24,003 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:50:24,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:24,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40808379] [2023-11-06 22:50:24,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40808379] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:24,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361132016] [2023-11-06 22:50:24,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:24,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:24,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:24,008 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:24,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:50:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:24,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:50:24,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:24,776 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:50:24,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:50:24,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361132016] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:24,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:50:24,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-06 22:50:24,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872853404] [2023-11-06 22:50:24,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:24,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:50:24,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:24,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:50:24,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:50:24,887 INFO L87 Difference]: Start difference. First operand 692 states and 921 transitions. Second operand has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 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) [2023-11-06 22:50:25,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:25,718 INFO L93 Difference]: Finished difference Result 3927 states and 5687 transitions. [2023-11-06 22:50:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:50:25,719 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 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 100 [2023-11-06 22:50:25,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:25,743 INFO L225 Difference]: With dead ends: 3927 [2023-11-06 22:50:25,744 INFO L226 Difference]: Without dead ends: 3926 [2023-11-06 22:50:25,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:50:25,746 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 6265 mSDsluCounter, 6744 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6345 SdHoareTripleChecker+Valid, 7490 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:25,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6345 Valid, 7490 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:50:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3926 states. [2023-11-06 22:50:25,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3926 to 716. [2023-11-06 22:50:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 620 states have (on average 1.4403225806451614) internal successors, (893), 682 states have internal predecessors, (893), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 951 transitions. [2023-11-06 22:50:25,834 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 951 transitions. Word has length 100 [2023-11-06 22:50:25,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:25,834 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 951 transitions. [2023-11-06 22:50:25,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 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) [2023-11-06 22:50:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 951 transitions. [2023-11-06 22:50:25,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-06 22:50:25,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:25,836 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] [2023-11-06 22:50:25,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:26,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:26,045 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:26,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:26,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1764101353, now seen corresponding path program 1 times [2023-11-06 22:50:26,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:26,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123424219] [2023-11-06 22:50:26,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:26,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:26,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:26,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:50:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:26,429 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:50:26,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:26,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123424219] [2023-11-06 22:50:26,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123424219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:26,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:26,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:50:26,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199001328] [2023-11-06 22:50:26,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:26,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:50:26,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:26,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:50:26,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:50:26,433 INFO L87 Difference]: Start difference. First operand 716 states and 951 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-06 22:50:27,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:27,225 INFO L93 Difference]: Finished difference Result 1285 states and 1763 transitions. [2023-11-06 22:50:27,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:50:27,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 106 [2023-11-06 22:50:27,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:27,232 INFO L225 Difference]: With dead ends: 1285 [2023-11-06 22:50:27,232 INFO L226 Difference]: Without dead ends: 826 [2023-11-06 22:50:27,234 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 [2023-11-06 22:50:27,235 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 174 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:27,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 2088 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:50:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2023-11-06 22:50:27,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 719. [2023-11-06 22:50:27,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 625 states have (on average 1.4352) internal successors, (897), 685 states have internal predecessors, (897), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:27,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 955 transitions. [2023-11-06 22:50:27,301 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 955 transitions. Word has length 106 [2023-11-06 22:50:27,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:27,301 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 955 transitions. [2023-11-06 22:50:27,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-06 22:50:27,302 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 955 transitions. [2023-11-06 22:50:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-06 22:50:27,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:27,304 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] [2023-11-06 22:50:27,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-06 22:50:27,305 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:27,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1764733844, now seen corresponding path program 1 times [2023-11-06 22:50:27,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:27,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865435513] [2023-11-06 22:50:27,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:27,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:27,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:27,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:50:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:27,701 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:50:27,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:27,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865435513] [2023-11-06 22:50:27,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865435513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:27,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:27,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:50:27,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507684956] [2023-11-06 22:50:27,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:27,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:50:27,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:27,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:50:27,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:50:27,704 INFO L87 Difference]: Start difference. First operand 719 states and 955 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-06 22:50:28,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:28,435 INFO L93 Difference]: Finished difference Result 757 states and 1009 transitions. [2023-11-06 22:50:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:50:28,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 106 [2023-11-06 22:50:28,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:28,441 INFO L225 Difference]: With dead ends: 757 [2023-11-06 22:50:28,441 INFO L226 Difference]: Without dead ends: 754 [2023-11-06 22:50:28,442 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 [2023-11-06 22:50:28,443 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 408 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:28,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1520 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:50:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-11-06 22:50:28,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 716. [2023-11-06 22:50:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 625 states have (on average 1.4304) internal successors, (894), 682 states have internal predecessors, (894), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:28,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 952 transitions. [2023-11-06 22:50:28,522 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 952 transitions. Word has length 106 [2023-11-06 22:50:28,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:28,522 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 952 transitions. [2023-11-06 22:50:28,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-06 22:50:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 952 transitions. [2023-11-06 22:50:28,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-06 22:50:28,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:28,526 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] [2023-11-06 22:50:28,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 22:50:28,527 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:28,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:28,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1147432245, now seen corresponding path program 1 times [2023-11-06 22:50:28,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:28,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546597534] [2023-11-06 22:50:28,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:28,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:28,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:28,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:50:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:28,883 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:50:28,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:28,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546597534] [2023-11-06 22:50:28,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546597534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:28,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:28,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:50:28,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668253193] [2023-11-06 22:50:28,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:28,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:50:28,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:28,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:50:28,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:50:28,886 INFO L87 Difference]: Start difference. First operand 716 states and 952 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-06 22:50:29,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:29,763 INFO L93 Difference]: Finished difference Result 1291 states and 1771 transitions. [2023-11-06 22:50:29,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:50:29,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 107 [2023-11-06 22:50:29,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:29,773 INFO L225 Difference]: With dead ends: 1291 [2023-11-06 22:50:29,773 INFO L226 Difference]: Without dead ends: 828 [2023-11-06 22:50:29,775 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 [2023-11-06 22:50:29,776 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 295 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:29,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1897 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:50:29,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2023-11-06 22:50:29,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 701. [2023-11-06 22:50:29,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 614 states have (on average 1.4234527687296417) internal successors, (874), 667 states have internal predecessors, (874), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:29,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 932 transitions. [2023-11-06 22:50:29,834 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 932 transitions. Word has length 107 [2023-11-06 22:50:29,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:29,835 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 932 transitions. [2023-11-06 22:50:29,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-06 22:50:29,835 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 932 transitions. [2023-11-06 22:50:29,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-06 22:50:29,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:29,837 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] [2023-11-06 22:50:29,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 22:50:29,837 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:29,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:29,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1127824964, now seen corresponding path program 1 times [2023-11-06 22:50:29,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:29,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883274046] [2023-11-06 22:50:29,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:29,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:30,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:30,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:50:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:30,236 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:50:30,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:30,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883274046] [2023-11-06 22:50:30,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883274046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:30,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:30,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:50:30,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397454187] [2023-11-06 22:50:30,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:30,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:50:30,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:30,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:50:30,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:50:30,239 INFO L87 Difference]: Start difference. First operand 701 states and 932 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-06 22:50:30,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:30,976 INFO L93 Difference]: Finished difference Result 784 states and 1053 transitions. [2023-11-06 22:50:30,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:50:30,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 107 [2023-11-06 22:50:30,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:30,983 INFO L225 Difference]: With dead ends: 784 [2023-11-06 22:50:30,983 INFO L226 Difference]: Without dead ends: 783 [2023-11-06 22:50:30,983 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 [2023-11-06 22:50:30,986 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 437 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:30,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1580 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:50:30,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-11-06 22:50:31,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 700. [2023-11-06 22:50:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 614 states have (on average 1.4218241042345277) internal successors, (873), 666 states have internal predecessors, (873), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:31,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 931 transitions. [2023-11-06 22:50:31,047 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 931 transitions. Word has length 107 [2023-11-06 22:50:31,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:31,048 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 931 transitions. [2023-11-06 22:50:31,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-06 22:50:31,048 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 931 transitions. [2023-11-06 22:50:31,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-06 22:50:31,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:31,055 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] [2023-11-06 22:50:31,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 22:50:31,055 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:31,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:31,056 INFO L85 PathProgramCache]: Analyzing trace with hash -141383529, now seen corresponding path program 1 times [2023-11-06 22:50:31,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:31,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543516214] [2023-11-06 22:50:31,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:31,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:31,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:31,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:50:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:50:31,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:31,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543516214] [2023-11-06 22:50:31,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543516214] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:31,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023211605] [2023-11-06 22:50:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:31,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:31,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:31,496 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:31,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:50:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:32,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:50:32,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:50:32,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:50:32,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023211605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:32,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:50:32,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2023-11-06 22:50:32,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789218401] [2023-11-06 22:50:32,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:32,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:50:32,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:32,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:50:32,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:32,346 INFO L87 Difference]: Start difference. First operand 700 states and 931 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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) [2023-11-06 22:50:32,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:32,611 INFO L93 Difference]: Finished difference Result 1284 states and 1752 transitions. [2023-11-06 22:50:32,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:50:32,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 108 [2023-11-06 22:50:32,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:32,617 INFO L225 Difference]: With dead ends: 1284 [2023-11-06 22:50:32,617 INFO L226 Difference]: Without dead ends: 774 [2023-11-06 22:50:32,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:32,620 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 474 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:32,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1969 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:50:32,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-11-06 22:50:32,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 699. [2023-11-06 22:50:32,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 615 states have (on average 1.4146341463414633) internal successors, (870), 665 states have internal predecessors, (870), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:32,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 928 transitions. [2023-11-06 22:50:32,679 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 928 transitions. Word has length 108 [2023-11-06 22:50:32,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:32,679 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 928 transitions. [2023-11-06 22:50:32,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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) [2023-11-06 22:50:32,680 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 928 transitions. [2023-11-06 22:50:32,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-06 22:50:32,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:32,681 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] [2023-11-06 22:50:32,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:32,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-06 22:50:32,890 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:32,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1569397146, now seen corresponding path program 1 times [2023-11-06 22:50:32,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:32,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087194100] [2023-11-06 22:50:32,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:32,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:33,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:50:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:33,205 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-06 22:50:33,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:33,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087194100] [2023-11-06 22:50:33,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087194100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:33,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:33,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:50:33,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014044684] [2023-11-06 22:50:33,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:33,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:50:33,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:33,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:50:33,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:50:33,208 INFO L87 Difference]: Start difference. First operand 699 states and 928 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-06 22:50:33,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:33,835 INFO L93 Difference]: Finished difference Result 733 states and 976 transitions. [2023-11-06 22:50:33,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:50:33,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 110 [2023-11-06 22:50:33,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:33,841 INFO L225 Difference]: With dead ends: 733 [2023-11-06 22:50:33,841 INFO L226 Difference]: Without dead ends: 732 [2023-11-06 22:50:33,841 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 [2023-11-06 22:50:33,843 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 58 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:33,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1949 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:50:33,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-11-06 22:50:33,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 698. [2023-11-06 22:50:33,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 615 states have (on average 1.4130081300813009) internal successors, (869), 664 states have internal predecessors, (869), 34 states have call successors, (34), 11 states have call predecessors, (34), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 22:50:33,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 927 transitions. [2023-11-06 22:50:33,960 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 927 transitions. Word has length 110 [2023-11-06 22:50:33,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:33,961 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 927 transitions. [2023-11-06 22:50:33,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-06 22:50:33,964 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 927 transitions. [2023-11-06 22:50:33,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 22:50:33,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:33,966 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] [2023-11-06 22:50:33,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-06 22:50:33,966 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:33,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:33,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1406671745, now seen corresponding path program 1 times [2023-11-06 22:50:33,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:33,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230015336] [2023-11-06 22:50:33,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:33,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:34,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:50:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:34,862 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:50:34,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:34,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230015336] [2023-11-06 22:50:34,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230015336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:50:34,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:50:34,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:50:34,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372788389] [2023-11-06 22:50:34,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:50:34,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:50:34,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:34,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:50:34,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:50:34,865 INFO L87 Difference]: Start difference. First operand 698 states and 927 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2023-11-06 22:50:35,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:35,556 INFO L93 Difference]: Finished difference Result 1272 states and 1727 transitions. [2023-11-06 22:50:35,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:50:35,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 111 [2023-11-06 22:50:35,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:35,562 INFO L225 Difference]: With dead ends: 1272 [2023-11-06 22:50:35,562 INFO L226 Difference]: Without dead ends: 732 [2023-11-06 22:50:35,564 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 [2023-11-06 22:50:35,565 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 58 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:35,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2664 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:50:35,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-11-06 22:50:35,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 701. [2023-11-06 22:50:35,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 617 states have (on average 1.413290113452188) internal successors, (872), 667 states have internal predecessors, (872), 34 states have call successors, (34), 11 states have call predecessors, (34), 9 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) [2023-11-06 22:50:35,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 933 transitions. [2023-11-06 22:50:35,694 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 933 transitions. Word has length 111 [2023-11-06 22:50:35,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:35,695 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 933 transitions. [2023-11-06 22:50:35,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2023-11-06 22:50:35,696 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 933 transitions. [2023-11-06 22:50:35,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-06 22:50:35,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:35,698 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] [2023-11-06 22:50:35,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-06 22:50:35,698 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:35,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:35,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1672811211, now seen corresponding path program 1 times [2023-11-06 22:50:35,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:35,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326638346] [2023-11-06 22:50:35,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:35,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:36,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:36,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:50:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:36,844 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:50:36,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:36,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326638346] [2023-11-06 22:50:36,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326638346] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:36,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717973946] [2023-11-06 22:50:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:36,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:36,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:36,846 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:36,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:50:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:40,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:50:40,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:40,692 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:50:40,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:50:40,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717973946] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:40,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:50:40,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2023-11-06 22:50:40,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733001823] [2023-11-06 22:50:40,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:40,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:50:40,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:40,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:50:40,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:50:40,797 INFO L87 Difference]: Start difference. First operand 701 states and 933 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) 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) [2023-11-06 22:50:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:41,798 INFO L93 Difference]: Finished difference Result 1286 states and 1753 transitions. [2023-11-06 22:50:41,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:50:41,799 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) 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 112 [2023-11-06 22:50:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:41,804 INFO L225 Difference]: With dead ends: 1286 [2023-11-06 22:50:41,804 INFO L226 Difference]: Without dead ends: 743 [2023-11-06 22:50:41,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:50:41,807 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 66 mSDsluCounter, 3369 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 4094 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:41,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 4094 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:50:41,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-11-06 22:50:41,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 706. [2023-11-06 22:50:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 622 states have (on average 1.4163987138263665) internal successors, (881), 671 states have internal predecessors, (881), 34 states have call successors, (34), 12 states have call predecessors, (34), 9 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2023-11-06 22:50:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 940 transitions. [2023-11-06 22:50:41,876 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 940 transitions. Word has length 112 [2023-11-06 22:50:41,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:41,877 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 940 transitions. [2023-11-06 22:50:41,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) 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) [2023-11-06 22:50:41,877 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 940 transitions. [2023-11-06 22:50:41,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 22:50:41,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:41,881 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, 1] [2023-11-06 22:50:41,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:42,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:42,096 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:42,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:42,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1269719334, now seen corresponding path program 1 times [2023-11-06 22:50:42,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:42,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834453392] [2023-11-06 22:50:42,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:42,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:42,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:42,611 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:50:42,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:42,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834453392] [2023-11-06 22:50:42,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834453392] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:42,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526746801] [2023-11-06 22:50:42,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:42,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:42,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:42,614 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:42,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:50:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:43,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:50:43,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:50:43,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:43,753 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:50:43,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526746801] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:43,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:50:43,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:50:43,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603556496] [2023-11-06 22:50:43,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:43,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:50:43,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:43,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:50:43,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:43,756 INFO L87 Difference]: Start difference. First operand 706 states and 940 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 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) [2023-11-06 22:50:43,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:43,916 INFO L93 Difference]: Finished difference Result 815 states and 1057 transitions. [2023-11-06 22:50:43,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:50:43,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 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 113 [2023-11-06 22:50:43,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:43,922 INFO L225 Difference]: With dead ends: 815 [2023-11-06 22:50:43,922 INFO L226 Difference]: Without dead ends: 814 [2023-11-06 22:50:43,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:50:43,924 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 5 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:43,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1480 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:50:43,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2023-11-06 22:50:43,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 811. [2023-11-06 22:50:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 727 states have (on average 1.3645116918844566) internal successors, (992), 776 states have internal predecessors, (992), 34 states have call successors, (34), 12 states have call predecessors, (34), 9 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2023-11-06 22:50:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1051 transitions. [2023-11-06 22:50:44,013 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1051 transitions. Word has length 113 [2023-11-06 22:50:44,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:44,013 INFO L495 AbstractCegarLoop]: Abstraction has 811 states and 1051 transitions. [2023-11-06 22:50:44,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 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) [2023-11-06 22:50:44,015 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1051 transitions. [2023-11-06 22:50:44,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-06 22:50:44,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:44,017 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] [2023-11-06 22:50:44,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:44,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-06 22:50:44,228 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:44,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:44,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1121511553, now seen corresponding path program 2 times [2023-11-06 22:50:44,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:44,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010396304] [2023-11-06 22:50:44,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:44,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:45,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:50:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:50:45,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:45,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010396304] [2023-11-06 22:50:45,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010396304] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:45,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642309468] [2023-11-06 22:50:45,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:50:45,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:45,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:45,700 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:45,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-06 22:50:51,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:50:51,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:50:51,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 22:50:51,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:50:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:50:51,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:50:52,149 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:50:52,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642309468] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:50:52,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:50:52,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2023-11-06 22:50:52,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905473608] [2023-11-06 22:50:52,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:50:52,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-06 22:50:52,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:50:52,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-06 22:50:52,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:50:52,152 INFO L87 Difference]: Start difference. First operand 811 states and 1051 transitions. Second operand has 20 states, 20 states have (on average 3.3) 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) [2023-11-06 22:50:54,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:50:54,709 INFO L93 Difference]: Finished difference Result 1415 states and 1903 transitions. [2023-11-06 22:50:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-06 22:50:54,710 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.3) 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 115 [2023-11-06 22:50:54,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:50:54,716 INFO L225 Difference]: With dead ends: 1415 [2023-11-06 22:50:54,717 INFO L226 Difference]: Without dead ends: 865 [2023-11-06 22:50:54,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=384, Invalid=876, Unknown=0, NotChecked=0, Total=1260 [2023-11-06 22:50:54,720 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 82 mSDsluCounter, 4809 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:50:54,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 5536 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:50:54,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2023-11-06 22:50:54,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 826. [2023-11-06 22:50:54,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 740 states have (on average 1.3716216216216217) internal successors, (1015), 791 states have internal predecessors, (1015), 34 states have call successors, (34), 12 states have call predecessors, (34), 11 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-06 22:50:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1077 transitions. [2023-11-06 22:50:54,794 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1077 transitions. Word has length 115 [2023-11-06 22:50:54,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:50:54,794 INFO L495 AbstractCegarLoop]: Abstraction has 826 states and 1077 transitions. [2023-11-06 22:50:54,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.3) 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) [2023-11-06 22:50:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1077 transitions. [2023-11-06 22:50:54,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-06 22:50:54,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:50:54,797 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] [2023-11-06 22:50:54,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:50:55,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-06 22:50:55,012 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:50:55,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:50:55,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1599673343, now seen corresponding path program 3 times [2023-11-06 22:50:55,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:50:55,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966873487] [2023-11-06 22:50:55,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:50:55,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:50:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:56,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:50:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:56,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:50:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:50:57,039 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:50:57,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:50:57,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966873487] [2023-11-06 22:50:57,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966873487] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:50:57,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607235922] [2023-11-06 22:50:57,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:50:57,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:50:57,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:57,042 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:50:57,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-06 22:51:44,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 22:51:44,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:51:44,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-06 22:51:44,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:51:45,015 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:51:45,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:51:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:51:45,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607235922] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:51:45,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:51:45,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 38 [2023-11-06 22:51:45,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732386119] [2023-11-06 22:51:45,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:51:45,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-06 22:51:45,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:45,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-06 22:51:45,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1049, Unknown=0, NotChecked=0, Total=1406 [2023-11-06 22:51:45,819 INFO L87 Difference]: Start difference. First operand 826 states and 1077 transitions. Second operand has 38 states, 38 states have (on average 2.210526315789474) 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) [2023-11-06 22:51:56,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:51:56,646 INFO L93 Difference]: Finished difference Result 1470 states and 1985 transitions. [2023-11-06 22:51:56,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-06 22:51:56,647 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.210526315789474) 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 121 [2023-11-06 22:51:56,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:51:56,653 INFO L225 Difference]: With dead ends: 1470 [2023-11-06 22:51:56,653 INFO L226 Difference]: Without dead ends: 897 [2023-11-06 22:51:56,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=1430, Invalid=3826, Unknown=0, NotChecked=0, Total=5256 [2023-11-06 22:51:56,658 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 117 mSDsluCounter, 9218 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 9952 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:51:56,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 9952 Invalid, 1473 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-06 22:51:56,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2023-11-06 22:51:56,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 843. [2023-11-06 22:51:56,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 757 states have (on average 1.3791281373844122) internal successors, (1044), 808 states have internal predecessors, (1044), 34 states have call successors, (34), 12 states have call predecessors, (34), 11 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-06 22:51:56,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1106 transitions. [2023-11-06 22:51:56,731 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1106 transitions. Word has length 121 [2023-11-06 22:51:56,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:51:56,732 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1106 transitions. [2023-11-06 22:51:56,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.210526315789474) 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) [2023-11-06 22:51:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1106 transitions. [2023-11-06 22:51:56,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 22:51:56,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:51:56,734 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] [2023-11-06 22:51:56,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:51:56,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:51:56,948 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:51:56,948 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:56,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1456871727, now seen corresponding path program 2 times [2023-11-06 22:51:56,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:56,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222310276] [2023-11-06 22:51:56,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:56,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:57,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:51:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:57,655 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:51:57,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:57,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222310276] [2023-11-06 22:51:57,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222310276] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:51:57,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984838533] [2023-11-06 22:51:57,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:51:57,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:51:57,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:51:57,658 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:51:57,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-06 22:51:58,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:51:58,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:51:58,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:51:58,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:51:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:51:58,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:51:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:51:59,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984838533] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:51:59,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:51:59,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-11-06 22:51:59,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737060091] [2023-11-06 22:51:59,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:51:59,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-06 22:51:59,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:59,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-06 22:51:59,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:51:59,062 INFO L87 Difference]: Start difference. First operand 843 states and 1106 transitions. Second operand has 25 states, 24 states have (on average 4.916666666666667) internal successors, (118), 25 states have internal predecessors, (118), 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) [2023-11-06 22:52:01,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:52:01,452 INFO L93 Difference]: Finished difference Result 7558 states and 11144 transitions. [2023-11-06 22:52:01,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:52:01,453 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.916666666666667) internal successors, (118), 25 states have internal predecessors, (118), 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 124 [2023-11-06 22:52:01,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:52:01,484 INFO L225 Difference]: With dead ends: 7558 [2023-11-06 22:52:01,484 INFO L226 Difference]: Without dead ends: 7557 [2023-11-06 22:52:01,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:52:01,488 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 13124 mSDsluCounter, 13045 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13300 SdHoareTripleChecker+Valid, 13778 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:52:01,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13300 Valid, 13778 Invalid, 578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:52:01,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7557 states. [2023-11-06 22:52:01,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7557 to 891. [2023-11-06 22:52:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 805 states have (on average 1.3714285714285714) internal successors, (1104), 856 states have internal predecessors, (1104), 34 states have call successors, (34), 12 states have call predecessors, (34), 11 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2023-11-06 22:52:01,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1166 transitions. [2023-11-06 22:52:01,657 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1166 transitions. Word has length 124 [2023-11-06 22:52:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:52:01,657 INFO L495 AbstractCegarLoop]: Abstraction has 891 states and 1166 transitions. [2023-11-06 22:52:01,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.916666666666667) internal successors, (118), 25 states have internal predecessors, (118), 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) [2023-11-06 22:52:01,658 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1166 transitions. [2023-11-06 22:52:01,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-06 22:52:01,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:52:01,660 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] [2023-11-06 22:52:01,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:52:01,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:52:01,870 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-06 22:52:01,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:01,871 INFO L85 PathProgramCache]: Analyzing trace with hash -181857535, now seen corresponding path program 4 times [2023-11-06 22:52:01,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:01,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141905033] [2023-11-06 22:52:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:01,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:03,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:52:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:52:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:05,195 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:52:05,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:05,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141905033] [2023-11-06 22:52:05,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141905033] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:52:05,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996941889] [2023-11-06 22:52:05,196 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:52:05,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:52:05,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:52:05,197 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:52:05,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c70f209e-4bea-48d6-88d1-0345e60a30f6/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-06 22:52:18,978 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:52:18,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:52:18,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-06 22:52:18,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:52:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:52:19,996 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:52:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-06 22:52:22,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996941889] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:52:22,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:52:22,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26, 26] total 74 [2023-11-06 22:52:22,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271013219] [2023-11-06 22:52:22,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:52:22,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2023-11-06 22:52:22,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:22,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2023-11-06 22:52:22,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1293, Invalid=4109, Unknown=0, NotChecked=0, Total=5402 [2023-11-06 22:52:22,697 INFO L87 Difference]: Start difference. First operand 891 states and 1166 transitions. Second operand has 74 states, 74 states have (on average 1.6216216216216217) 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)