./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/25_stack_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack_longer-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71de1c8da7c81d1cb6f2035741a17645b8c79e199c0fda7e542c1cb232593d6b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 01:44:41,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 01:44:41,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 01:44:41,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 01:44:41,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 01:44:41,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 01:44:41,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 01:44:41,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 01:44:41,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 01:44:41,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 01:44:41,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 01:44:41,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 01:44:41,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 01:44:41,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 01:44:41,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 01:44:41,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 01:44:41,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 01:44:41,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 01:44:41,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 01:44:41,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 01:44:41,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 01:44:41,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 01:44:41,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 01:44:41,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 01:44:41,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 01:44:41,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 01:44:41,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 01:44:41,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 01:44:41,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 01:44:41,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 01:44:41,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 01:44:41,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 01:44:41,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 01:44:41,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 01:44:41,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 01:44:41,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 01:44:41,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 01:44:41,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 01:44:41,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 01:44:41,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 01:44:41,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 01:44:41,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2022-11-18 01:44:41,961 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 01:44:41,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 01:44:41,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 01:44:41,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 01:44:41,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 01:44:41,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 01:44:41,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 01:44:41,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 01:44:41,972 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 01:44:41,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 01:44:41,974 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 01:44:41,974 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 01:44:41,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 01:44:41,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 01:44:41,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 01:44:41,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 01:44:41,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 01:44:41,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 01:44:41,975 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 01:44:41,975 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 01:44:41,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 01:44:41,976 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 01:44:41,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 01:44:41,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 01:44:41,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 01:44:41,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-18 01:44:41,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 01:44:41,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 01:44:41,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 01:44:41,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 01:44:41,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 01:44:41,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 01:44:41,981 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-18 01:44:41,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 01:44:41,981 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 01:44:41,982 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-18 01:44:41,982 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-18 01:44:41,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 01:44:41,982 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-18 01:44:41,982 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-18 01:44:41,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71de1c8da7c81d1cb6f2035741a17645b8c79e199c0fda7e542c1cb232593d6b [2022-11-18 01:44:42,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 01:44:42,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 01:44:42,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 01:44:42,453 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 01:44:42,454 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 01:44:42,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/../../sv-benchmarks/c/pthread-ext/25_stack_longer-1.i [2022-11-18 01:44:42,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/data/3329766f2/950b30d2f8454498bfd2fb81fad0c7f2/FLAG03a912fb3 [2022-11-18 01:44:43,250 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 01:44:43,251 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/sv-benchmarks/c/pthread-ext/25_stack_longer-1.i [2022-11-18 01:44:43,268 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/data/3329766f2/950b30d2f8454498bfd2fb81fad0c7f2/FLAG03a912fb3 [2022-11-18 01:44:43,519 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/data/3329766f2/950b30d2f8454498bfd2fb81fad0c7f2 [2022-11-18 01:44:43,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 01:44:43,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 01:44:43,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 01:44:43,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 01:44:43,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 01:44:43,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:44:43" (1/1) ... [2022-11-18 01:44:43,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4429568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:43, skipping insertion in model container [2022-11-18 01:44:43,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:44:43" (1/1) ... [2022-11-18 01:44:43,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 01:44:43,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 01:44:44,153 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/sv-benchmarks/c/pthread-ext/25_stack_longer-1.i[31042,31055] [2022-11-18 01:44:44,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 01:44:44,192 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 01:44:44,242 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/sv-benchmarks/c/pthread-ext/25_stack_longer-1.i[31042,31055] [2022-11-18 01:44:44,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 01:44:44,291 INFO L208 MainTranslator]: Completed translation [2022-11-18 01:44:44,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44 WrapperNode [2022-11-18 01:44:44,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 01:44:44,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 01:44:44,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 01:44:44,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 01:44:44,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,359 INFO L138 Inliner]: procedures = 177, calls = 34, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 182 [2022-11-18 01:44:44,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 01:44:44,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 01:44:44,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 01:44:44,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 01:44:44,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,413 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 01:44:44,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 01:44:44,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 01:44:44,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 01:44:44,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (1/1) ... [2022-11-18 01:44:44,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 01:44:44,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:44,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:44,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 01:44:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 01:44:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-18 01:44:44,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-18 01:44:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 01:44:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 01:44:44,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 01:44:44,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 01:44:44,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 01:44:44,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 01:44:44,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 01:44:44,546 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 01:44:44,788 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 01:44:44,791 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 01:44:45,397 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 01:44:45,671 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 01:44:45,674 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 01:44:45,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:44:45 BoogieIcfgContainer [2022-11-18 01:44:45,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 01:44:45,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 01:44:45,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 01:44:45,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 01:44:45,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:44:43" (1/3) ... [2022-11-18 01:44:45,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef5d053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:44:45, skipping insertion in model container [2022-11-18 01:44:45,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:44" (2/3) ... [2022-11-18 01:44:45,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef5d053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:44:45, skipping insertion in model container [2022-11-18 01:44:45,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:44:45" (3/3) ... [2022-11-18 01:44:45,690 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack_longer-1.i [2022-11-18 01:44:45,707 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 01:44:45,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 01:44:45,719 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-18 01:44:45,720 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 01:44:45,796 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 01:44:45,857 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:45,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:45,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:45,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:45,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-18 01:44:45,960 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:45,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2022-11-18 01:44:45,994 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=PARTIAL_ORDER_FA, 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;@6be7f41f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:45,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 01:44:46,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:44:46,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:46,439 INFO L85 PathProgramCache]: Analyzing trace with hash 56458739, now seen corresponding path program 1 times [2022-11-18 01:44:46,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:46,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895144499] [2022-11-18 01:44:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:46,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:47,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:47,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:47,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895144499] [2022-11-18 01:44:47,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895144499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:47,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:47,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:47,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388651573] [2022-11-18 01:44:47,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:47,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:47,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:47,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:47,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,061 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:47,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-11-18 01:44:47,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:47,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 01:44:47,376 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:44:47,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:47,377 INFO L85 PathProgramCache]: Analyzing trace with hash 714555151, now seen corresponding path program 1 times [2022-11-18 01:44:47,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:47,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885523626] [2022-11-18 01:44:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:47,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:47,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:47,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885523626] [2022-11-18 01:44:47,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885523626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:47,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:47,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 01:44:47,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853600969] [2022-11-18 01:44:47,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:47,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 01:44:47,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:47,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 01:44:47,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 01:44:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,829 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:47,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 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) [2022-11-18 01:44:47,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:47,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:48,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 01:44:48,212 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:44:48,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:48,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1731911301, now seen corresponding path program 1 times [2022-11-18 01:44:48,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:48,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492410627] [2022-11-18 01:44:48,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:48,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:48,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:48,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492410627] [2022-11-18 01:44:48,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492410627] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:48,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730306119] [2022-11-18 01:44:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:48,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:48,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:48,486 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:48,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 01:44:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:48,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 01:44:48,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:48,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:49,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730306119] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:49,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:49,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-18 01:44:49,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308318138] [2022-11-18 01:44:49,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:49,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 01:44:49,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:49,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 01:44:49,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 01:44:49,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:49,195 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:49,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 44.833333333333336) internal successors, (269), 7 states have internal predecessors, (269), 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) [2022-11-18 01:44:49,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:49,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:49,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:49,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:49,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:49,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:49,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:49,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:49,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:44:49,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:49,502 INFO L85 PathProgramCache]: Analyzing trace with hash -2145323852, now seen corresponding path program 1 times [2022-11-18 01:44:49,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:49,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735401794] [2022-11-18 01:44:49,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:49,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:49,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:49,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735401794] [2022-11-18 01:44:49,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735401794] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:49,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538596890] [2022-11-18 01:44:49,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:49,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:49,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:49,684 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:49,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 01:44:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:49,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 01:44:49,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:49,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 01:44:49,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538596890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:49,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 01:44:49,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-18 01:44:49,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960348098] [2022-11-18 01:44:49,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:49,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:44:49,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:49,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:44:49,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:49,997 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:49,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 38.0) internal successors, (114), 4 states have internal predecessors, (114), 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) [2022-11-18 01:44:49,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:49,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:49,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:49,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:50,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:50,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:50,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 01:44:50,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:50,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:50,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:50,490 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:44:50,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:50,490 INFO L85 PathProgramCache]: Analyzing trace with hash -240293963, now seen corresponding path program 1 times [2022-11-18 01:44:50,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:50,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293175936] [2022-11-18 01:44:50,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:50,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:51,226 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 01:44:51,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:51,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293175936] [2022-11-18 01:44:51,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293175936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:51,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:51,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 01:44:51,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663430873] [2022-11-18 01:44:51,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:51,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 01:44:51,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:51,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 01:44:51,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-18 01:44:51,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:51,233 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:51,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.5) internal successors, (138), 12 states have internal predecessors, (138), 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) [2022-11-18 01:44:51,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:51,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:51,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-18 01:44:51,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:51,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:51,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:51,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:51,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 01:44:51,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:51,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:44:51,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-18 01:44:51,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-18 01:44:51,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-18 01:44:51,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-18 01:44:51,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-18 01:44:51,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-18 01:44:51,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-18 01:44:51,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-18 01:44:51,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-18 01:44:51,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-18 01:44:51,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 01:44:51,805 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 01:44:51,807 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2022-11-18 01:44:51,812 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:51,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:51,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:51,814 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:51,821 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:51,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:51,822 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=PARTIAL_ORDER_FA, 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;@6be7f41f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:51,822 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 01:44:51,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-11-18 01:44:51,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:51,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:51,969 INFO L85 PathProgramCache]: Analyzing trace with hash 287291733, now seen corresponding path program 1 times [2022-11-18 01:44:51,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:51,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176287196] [2022-11-18 01:44:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:51,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:51,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:51,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176287196] [2022-11-18 01:44:51,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176287196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:51,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:51,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:51,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023808554] [2022-11-18 01:44:51,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:52,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:52,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:52,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:52,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:52,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,004 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:52,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 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) [2022-11-18 01:44:52,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 01:44:52,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:52,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:52,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1762200364, now seen corresponding path program 1 times [2022-11-18 01:44:52,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:52,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622095609] [2022-11-18 01:44:52,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:52,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:52,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:52,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622095609] [2022-11-18 01:44:52,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622095609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:52,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:52,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:52,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736530044] [2022-11-18 01:44:52,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:52,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:52,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:52,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:52,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,091 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:52,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2022-11-18 01:44:52,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:52,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 01:44:52,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:52,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:52,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1760565063, now seen corresponding path program 1 times [2022-11-18 01:44:52,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:52,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310581037] [2022-11-18 01:44:52,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:52,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:52,317 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:52,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:52,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310581037] [2022-11-18 01:44:52,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310581037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:52,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:52,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 01:44:52,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872127078] [2022-11-18 01:44:52,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:52,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 01:44:52,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:52,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 01:44:52,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 01:44:52,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,325 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:52,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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) [2022-11-18 01:44:52,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:52,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:52,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:52,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 01:44:52,569 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:52,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:52,569 INFO L85 PathProgramCache]: Analyzing trace with hash 253254973, now seen corresponding path program 1 times [2022-11-18 01:44:52,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:52,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643763385] [2022-11-18 01:44:52,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:52,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:52,986 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:52,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:52,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643763385] [2022-11-18 01:44:52,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643763385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:52,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:52,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 01:44:52,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888211000] [2022-11-18 01:44:52,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:52,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 01:44:52,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:52,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 01:44:52,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-18 01:44:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,990 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:52,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 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) [2022-11-18 01:44:52,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:52,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:52,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:53,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:53,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:53,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:44:53,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 01:44:53,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:53,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1548909521, now seen corresponding path program 1 times [2022-11-18 01:44:53,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:53,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74304782] [2022-11-18 01:44:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:53,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:53,484 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:44:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:53,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:44:53,535 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:44:53,535 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-11-18 01:44:53,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 01:44:53,539 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 01:44:53,540 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2022-11-18 01:44:53,540 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:44:53,541 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 01:44:53,588 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 01:44:53,591 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:53,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:53,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:53,595 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:53,618 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:53,618 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:53,619 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=PARTIAL_ORDER_FA, 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;@6be7f41f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:53,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 01:44:53,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-11-18 01:44:53,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:53,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:53,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1816877238, now seen corresponding path program 1 times [2022-11-18 01:44:53,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:53,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885649098] [2022-11-18 01:44:53,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:53,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 01:44:53,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:53,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885649098] [2022-11-18 01:44:53,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885649098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:53,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:53,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:53,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396039078] [2022-11-18 01:44:53,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:53,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:53,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:53,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:53,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:53,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:53,883 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:53,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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) [2022-11-18 01:44:53,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:53,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:53,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 01:44:53,976 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:53,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:53,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1222617533, now seen corresponding path program 1 times [2022-11-18 01:44:53,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:53,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109429006] [2022-11-18 01:44:53,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:53,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:54,096 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 01:44:54,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:54,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109429006] [2022-11-18 01:44:54,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109429006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:54,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:54,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:54,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206766300] [2022-11-18 01:44:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:54,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:54,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:54,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:54,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:54,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:54,101 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:54,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2022-11-18 01:44:54,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:54,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:54,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:54,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:54,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 01:44:54,272 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:54,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:54,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1822106826, now seen corresponding path program 1 times [2022-11-18 01:44:54,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:54,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110790918] [2022-11-18 01:44:54,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:54,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 01:44:54,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:54,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110790918] [2022-11-18 01:44:54,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110790918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:54,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:54,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 01:44:54,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545572213] [2022-11-18 01:44:54,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:54,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 01:44:54,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:54,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 01:44:54,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 01:44:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:54,454 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:54,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 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) [2022-11-18 01:44:54,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:54,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:54,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:54,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:54,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:54,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:54,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 01:44:54,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:54,800 INFO L85 PathProgramCache]: Analyzing trace with hash 62009920, now seen corresponding path program 1 times [2022-11-18 01:44:54,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:54,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278515477] [2022-11-18 01:44:54,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:54,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:55,098 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:55,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:55,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278515477] [2022-11-18 01:44:55,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278515477] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:55,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224800947] [2022-11-18 01:44:55,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:55,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:55,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:55,107 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:55,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 01:44:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:55,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 01:44:55,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:55,445 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:55,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 01:44:55,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224800947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:55,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 01:44:55,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 11 [2022-11-18 01:44:55,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517069709] [2022-11-18 01:44:55,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:55,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:44:55,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:55,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:44:55,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-18 01:44:55,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:55,450 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:55,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:55,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:55,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:55,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:55,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:55,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:55,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:55,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:55,804 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:55,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:55,805 INFO L85 PathProgramCache]: Analyzing trace with hash 956018588, now seen corresponding path program 1 times [2022-11-18 01:44:55,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:55,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473669023] [2022-11-18 01:44:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:55,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 01:44:56,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:56,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473669023] [2022-11-18 01:44:56,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473669023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:56,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:56,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 01:44:56,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108247376] [2022-11-18 01:44:56,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:56,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 01:44:56,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:56,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 01:44:56,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-18 01:44:56,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:56,291 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:56,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.916666666666666) internal successors, (143), 12 states have internal predecessors, (143), 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) [2022-11-18 01:44:56,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:56,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:56,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:56,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:56,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:56,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:44:56,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 01:44:56,837 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:56,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:56,838 INFO L85 PathProgramCache]: Analyzing trace with hash -608957766, now seen corresponding path program 1 times [2022-11-18 01:44:56,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:56,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064563732] [2022-11-18 01:44:56,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:56,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:57,006 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:57,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:57,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064563732] [2022-11-18 01:44:57,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064563732] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:57,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641167691] [2022-11-18 01:44:57,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:57,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:57,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:57,009 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:57,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 01:44:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:57,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 01:44:57,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:57,413 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:57,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:57,647 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:57,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641167691] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:57,647 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:57,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 01:44:57,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741865292] [2022-11-18 01:44:57,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:57,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 01:44:57,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 01:44:57,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 01:44:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:57,651 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:57,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.142857142857146) internal successors, (302), 7 states have internal predecessors, (302), 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) [2022-11-18 01:44:57,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:57,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:57,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:57,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:57,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:44:57,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:57,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:57,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:44:57,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:57,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:58,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 01:44:58,029 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:58,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:58,029 INFO L85 PathProgramCache]: Analyzing trace with hash -930676132, now seen corresponding path program 1 times [2022-11-18 01:44:58,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:58,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228035930] [2022-11-18 01:44:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:58,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:58,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:58,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228035930] [2022-11-18 01:44:58,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228035930] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:58,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707091669] [2022-11-18 01:44:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:58,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:58,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:58,224 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:58,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 01:44:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:58,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 01:44:58,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:58,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 01:44:58,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707091669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:58,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 01:44:58,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-18 01:44:58,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415247880] [2022-11-18 01:44:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:58,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:44:58,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:58,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:44:58,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,669 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:58,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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) [2022-11-18 01:44:58,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:58,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:58,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:58,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:44:58,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:58,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:58,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:44:58,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:58,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:58,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:59,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 01:44:59,150 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:44:59,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:59,151 INFO L85 PathProgramCache]: Analyzing trace with hash 735052715, now seen corresponding path program 1 times [2022-11-18 01:44:59,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:59,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746465742] [2022-11-18 01:44:59,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:59,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:59,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:59,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746465742] [2022-11-18 01:44:59,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746465742] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:59,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314809438] [2022-11-18 01:44:59,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:59,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:59,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:59,446 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:59,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 01:44:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:59,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 01:44:59,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:59,900 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:59,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 01:44:59,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314809438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:59,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 01:44:59,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2022-11-18 01:44:59,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927486255] [2022-11-18 01:44:59,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:59,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 01:44:59,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:59,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 01:44:59,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-18 01:44:59,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,904 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:59,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 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) [2022-11-18 01:44:59,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:59,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:59,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:59,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:44:59,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:59,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:44:59,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:00,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:00,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:00,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:00,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:00,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:45:00,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:00,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:00,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:00,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-18 01:45:00,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 01:45:00,414 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:45:00,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:00,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1742180886, now seen corresponding path program 1 times [2022-11-18 01:45:00,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:00,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309425694] [2022-11-18 01:45:00,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:00,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:00,515 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 01:45:00,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:00,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309425694] [2022-11-18 01:45:00,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309425694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:00,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:00,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 01:45:00,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639477699] [2022-11-18 01:45:00,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:00,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:45:00,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:00,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:45:00,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 01:45:00,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:00,519 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:00,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2022-11-18 01:45:00,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:00,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:00,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:00,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:00,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:45:00,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:00,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:00,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:00,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:00,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:00,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:00,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:00,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:00,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:45:00,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:00,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:00,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:00,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:00,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 01:45:00,674 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:45:00,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:00,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2023661706, now seen corresponding path program 1 times [2022-11-18 01:45:00,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:00,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994353501] [2022-11-18 01:45:00,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:00,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:00,934 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:00,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:00,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994353501] [2022-11-18 01:45:00,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994353501] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:00,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582693719] [2022-11-18 01:45:00,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:00,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:00,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:00,937 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:00,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 01:45:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:01,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 01:45:01,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:01,324 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:01,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:01,566 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:01,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582693719] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:01,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:01,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-18 01:45:01,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643811167] [2022-11-18 01:45:01,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:01,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 01:45:01,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:01,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 01:45:01,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-11-18 01:45:01,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:01,570 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:01,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 23.066666666666666) internal successors, (346), 15 states have internal predecessors, (346), 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) [2022-11-18 01:45:01,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:01,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:01,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:01,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:01,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:45:01,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:01,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:01,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:01,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:01,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:01,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:01,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:01,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:01,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:01,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:45:01,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:01,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:01,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:01,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:01,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 01:45:01,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-18 01:45:02,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:02,179 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:45:02,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:02,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1095338892, now seen corresponding path program 1 times [2022-11-18 01:45:02,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:02,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211966598] [2022-11-18 01:45:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:02,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:02,765 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:02,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:02,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211966598] [2022-11-18 01:45:02,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211966598] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:02,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960527042] [2022-11-18 01:45:02,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:02,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:02,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:02,768 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:02,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 01:45:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:02,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 01:45:03,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:03,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:04,613 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:04,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960527042] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:04,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:04,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 38 [2022-11-18 01:45:04,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360636030] [2022-11-18 01:45:04,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:04,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-18 01:45:04,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:04,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-18 01:45:04,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2022-11-18 01:45:04,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:04,621 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:04,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 11.736842105263158) internal successors, (446), 38 states have internal predecessors, (446), 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) [2022-11-18 01:45:04,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:04,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:04,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:04,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:04,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:45:04,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:04,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:04,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:04,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:04,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-18 01:45:04,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:45:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:06,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 01:45:06,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 01:45:06,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:06,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-18 01:45:06,444 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 01:45:06,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:06,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1277789205, now seen corresponding path program 1 times [2022-11-18 01:45:06,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:06,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443754751] [2022-11-18 01:45:06,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:06,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:06,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:45:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:06,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:45:06,679 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:45:06,680 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-11-18 01:45:06,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 01:45:06,693 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:45:06,693 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2022-11-18 01:45:06,693 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:45:06,693 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 01:45:06,756 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 01:45:06,762 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:06,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:45:06,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:06,764 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:45:06,779 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:45:06,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2022-11-18 01:45:06,780 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=PARTIAL_ORDER_FA, 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;@6be7f41f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:06,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 01:45:06,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2022-11-18 01:45:07,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:07,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1209447659, now seen corresponding path program 1 times [2022-11-18 01:45:07,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:07,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147199298] [2022-11-18 01:45:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:07,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:07,141 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 01:45:07,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:07,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147199298] [2022-11-18 01:45:07,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147199298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:07,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:07,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:45:07,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504341388] [2022-11-18 01:45:07,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:07,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:45:07,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:07,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:45:07,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:45:07,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,144 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:07,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 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) [2022-11-18 01:45:07,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 01:45:07,226 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:07,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1335086236, now seen corresponding path program 1 times [2022-11-18 01:45:07,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:07,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080170368] [2022-11-18 01:45:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:07,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 01:45:07,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:07,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080170368] [2022-11-18 01:45:07,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080170368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:07,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:07,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:07,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263889181] [2022-11-18 01:45:07,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:07,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:07,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:07,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:07,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:07,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,339 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:07,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2022-11-18 01:45:07,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:07,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 01:45:07,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:07,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:07,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1799616219, now seen corresponding path program 1 times [2022-11-18 01:45:07,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:07,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183103610] [2022-11-18 01:45:07,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:07,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 01:45:07,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:07,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183103610] [2022-11-18 01:45:07,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183103610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:07,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:07,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 01:45:07,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331783776] [2022-11-18 01:45:07,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:07,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 01:45:07,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:07,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 01:45:07,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 01:45:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,731 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:07,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 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) [2022-11-18 01:45:07,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:07,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:08,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:08,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:08,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:08,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 01:45:08,015 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:08,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:08,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1043315823, now seen corresponding path program 1 times [2022-11-18 01:45:08,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:08,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480287949] [2022-11-18 01:45:08,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:08,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:08,262 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 01:45:08,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:08,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480287949] [2022-11-18 01:45:08,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480287949] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:08,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054470361] [2022-11-18 01:45:08,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:08,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:08,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:08,271 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:08,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 01:45:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:08,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 01:45:08,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 01:45:08,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 01:45:08,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054470361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:08,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 01:45:08,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 11 [2022-11-18 01:45:08,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764828676] [2022-11-18 01:45:08,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:08,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:45:08,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:08,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:45:08,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-18 01:45:08,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:08,716 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:08,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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) [2022-11-18 01:45:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:08,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:08,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:08,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:08,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:09,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:09,077 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:09,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:09,078 INFO L85 PathProgramCache]: Analyzing trace with hash -101929325, now seen corresponding path program 1 times [2022-11-18 01:45:09,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:09,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85923794] [2022-11-18 01:45:09,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:09,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:09,671 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 01:45:09,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:09,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85923794] [2022-11-18 01:45:09,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85923794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:09,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:09,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 01:45:09,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28234974] [2022-11-18 01:45:09,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:09,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 01:45:09,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:09,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 01:45:09,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-18 01:45:09,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,675 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:09,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.5) internal successors, (174), 12 states have internal predecessors, (174), 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) [2022-11-18 01:45:09,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:09,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:09,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:09,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:10,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:10,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:10,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:10,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:10,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-18 01:45:10,282 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:10,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:10,283 INFO L85 PathProgramCache]: Analyzing trace with hash 288869971, now seen corresponding path program 2 times [2022-11-18 01:45:10,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:10,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578482990] [2022-11-18 01:45:10,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:10,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:10,434 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 28 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:10,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:10,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578482990] [2022-11-18 01:45:10,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578482990] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:10,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493399728] [2022-11-18 01:45:10,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 01:45:10,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:10,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:10,437 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:10,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 01:45:10,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 01:45:10,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 01:45:10,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-18 01:45:10,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:11,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 01:45:11,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 01:45:12,126 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-18 01:45:12,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:12,168 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-18 01:45:12,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493399728] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:12,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-18 01:45:12,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 7] total 10 [2022-11-18 01:45:12,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813820252] [2022-11-18 01:45:12,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:12,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:12,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:12,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:12,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:45:12,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:12,172 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:12,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2022-11-18 01:45:12,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:12,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:12,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:12,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:12,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:12,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:12,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:12,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:12,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 01:45:12,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:12,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:12,658 INFO L85 PathProgramCache]: Analyzing trace with hash 9318677, now seen corresponding path program 3 times [2022-11-18 01:45:12,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:12,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334964052] [2022-11-18 01:45:12,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:12,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 36 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 01:45:12,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:12,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334964052] [2022-11-18 01:45:12,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334964052] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:12,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622966357] [2022-11-18 01:45:12,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 01:45:12,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:12,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:12,790 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:12,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 01:45:13,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 01:45:13,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 01:45:13,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-18 01:45:13,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:13,149 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 01:45:13,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 01:45:14,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 01:45:14,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 01:45:14,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 01:45:14,904 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-18 01:45:14,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:14,924 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1087 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1087) |c_~#m~0.base|) |c_~#m~0.offset|) 0))) is different from false [2022-11-18 01:45:14,981 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 01:45:14,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2022-11-18 01:45:14,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2022-11-18 01:45:14,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-18 01:45:15,292 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-18 01:45:15,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2022-11-18 01:45:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 13 not checked. [2022-11-18 01:45:15,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622966357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:15,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:15,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2022-11-18 01:45:15,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892640779] [2022-11-18 01:45:15,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:15,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 01:45:15,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:15,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 01:45:15,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=210, Unknown=1, NotChecked=30, Total=306 [2022-11-18 01:45:15,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:15,310 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:15,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 27.166666666666668) internal successors, (489), 18 states have internal predecessors, (489), 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) [2022-11-18 01:45:15,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:15,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:15,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:15,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:15,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:15,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:15,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:18,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:18,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:18,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-18 01:45:18,342 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:18,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:18,342 INFO L85 PathProgramCache]: Analyzing trace with hash 486105310, now seen corresponding path program 1 times [2022-11-18 01:45:18,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:18,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887086153] [2022-11-18 01:45:18,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:18,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 01:45:18,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:18,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887086153] [2022-11-18 01:45:18,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887086153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:18,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:18,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 01:45:18,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832956512] [2022-11-18 01:45:18,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:18,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:45:18,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:18,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:45:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 01:45:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:18,500 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:18,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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) [2022-11-18 01:45:18,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:18,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:18,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:18,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:18,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:18,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:18,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:18,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:18,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-18 01:45:18,940 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:18,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:18,941 INFO L85 PathProgramCache]: Analyzing trace with hash 399209159, now seen corresponding path program 1 times [2022-11-18 01:45:18,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:18,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777698416] [2022-11-18 01:45:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:18,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 01:45:19,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:19,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777698416] [2022-11-18 01:45:19,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777698416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:19,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:19,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:19,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632184720] [2022-11-18 01:45:19,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:19,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:19,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:19,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:19,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:19,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:19,049 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:19,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2022-11-18 01:45:19,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:19,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:19,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:19,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:19,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:19,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:19,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:19,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:19,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:19,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:19,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-18 01:45:19,831 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:19,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:19,831 INFO L85 PathProgramCache]: Analyzing trace with hash -170715083, now seen corresponding path program 1 times [2022-11-18 01:45:19,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:19,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319875803] [2022-11-18 01:45:19,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:19,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:20,638 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 257 proven. 12 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-18 01:45:20,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:20,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319875803] [2022-11-18 01:45:20,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319875803] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:20,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448657456] [2022-11-18 01:45:20,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:20,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:20,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:20,641 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:20,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 01:45:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:21,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1583 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:45:21,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-18 01:45:21,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 01:45:21,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448657456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:21,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 01:45:21,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2022-11-18 01:45:21,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358705664] [2022-11-18 01:45:21,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:21,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:45:21,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:45:21,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-18 01:45:21,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,301 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:21,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.0) internal successors, (290), 5 states have internal predecessors, (290), 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) [2022-11-18 01:45:21,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:21,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:21,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:21,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:21,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:21,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:21,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:21,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-18 01:45:21,734 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:21,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:21,735 INFO L85 PathProgramCache]: Analyzing trace with hash 36355160, now seen corresponding path program 1 times [2022-11-18 01:45:21,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:21,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176957661] [2022-11-18 01:45:21,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:21,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 01:45:21,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:21,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176957661] [2022-11-18 01:45:21,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176957661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:21,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:21,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:21,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210466758] [2022-11-18 01:45:21,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:21,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:45:21,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:21,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:45:21,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 01:45:21,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,885 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:21,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 59.0) internal successors, (177), 4 states have internal predecessors, (177), 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) [2022-11-18 01:45:21,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:21,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:21,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:21,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:21,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:21,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-18 01:45:22,121 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:22,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:22,121 INFO L85 PathProgramCache]: Analyzing trace with hash 209459142, now seen corresponding path program 1 times [2022-11-18 01:45:22,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:22,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029914510] [2022-11-18 01:45:22,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:22,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:22,265 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 01:45:22,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:22,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029914510] [2022-11-18 01:45:22,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029914510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:22,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:22,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 01:45:22,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854464526] [2022-11-18 01:45:22,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:22,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 01:45:22,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:22,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 01:45:22,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 01:45:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,270 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:22,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 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) [2022-11-18 01:45:22,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:22,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:22,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:22,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:22,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:22,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-18 01:45:22,674 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:22,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:22,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2007782044, now seen corresponding path program 1 times [2022-11-18 01:45:22,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:22,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308402216] [2022-11-18 01:45:22,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:22,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 01:45:22,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:22,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308402216] [2022-11-18 01:45:22,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308402216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:22,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:22,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:22,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817031413] [2022-11-18 01:45:22,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:22,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:45:22,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:22,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:45:22,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 01:45:22,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,777 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:22,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 62.666666666666664) internal successors, (188), 4 states have internal predecessors, (188), 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) [2022-11-18 01:45:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:22,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:22,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:22,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-18 01:45:22,958 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:22,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:22,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2111699389, now seen corresponding path program 1 times [2022-11-18 01:45:22,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:22,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105145216] [2022-11-18 01:45:22,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:22,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:23,055 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 01:45:23,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:23,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105145216] [2022-11-18 01:45:23,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105145216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:23,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:23,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:23,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452722604] [2022-11-18 01:45:23,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:23,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:45:23,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:23,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:45:23,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 01:45:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:23,059 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:23,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 63.0) internal successors, (189), 4 states have internal predecessors, (189), 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) [2022-11-18 01:45:23,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:23,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:23,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:23,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:23,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:23,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:23,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:23,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:23,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:23,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:23,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:23,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-18 01:45:23,324 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:23,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:23,325 INFO L85 PathProgramCache]: Analyzing trace with hash -54774008, now seen corresponding path program 1 times [2022-11-18 01:45:23,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:23,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738923220] [2022-11-18 01:45:23,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:23,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:23,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:23,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738923220] [2022-11-18 01:45:23,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738923220] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:23,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914143526] [2022-11-18 01:45:23,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:23,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:23,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:23,683 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:23,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 01:45:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:24,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 01:45:24,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:24,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 01:45:24,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914143526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:24,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 01:45:24,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-11-18 01:45:24,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23932412] [2022-11-18 01:45:24,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:24,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 01:45:24,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:24,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 01:45:24,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-11-18 01:45:24,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:24,246 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:24,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.625) internal successors, (205), 8 states have internal predecessors, (205), 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) [2022-11-18 01:45:24,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:24,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:24,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:24,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:24,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:24,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:24,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:24,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:24,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:24,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:24,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:24,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:24,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:24,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:24,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd5ce2-b32e-473b-95f1-bfa3a9342e3b/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-18 01:45:24,907 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:24,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:24,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1482953863, now seen corresponding path program 1 times [2022-11-18 01:45:24,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:24,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284257379] [2022-11-18 01:45:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:24,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:25,025 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 01:45:25,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:25,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284257379] [2022-11-18 01:45:25,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284257379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:25,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:25,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 01:45:25,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477511262] [2022-11-18 01:45:25,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:25,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:45:25,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:25,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:45:25,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 01:45:25,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:25,028 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:25,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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) [2022-11-18 01:45:25,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:25,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:25,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:25,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:25,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:25,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:25,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-18 01:45:25,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:25,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:25,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:25,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:25,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:25,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:25,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:25,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:25,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:45:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 01:45:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:25,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-18 01:45:25,742 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:25,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:25,742 INFO L85 PathProgramCache]: Analyzing trace with hash -31810845, now seen corresponding path program 1 times [2022-11-18 01:45:25,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:25,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999768973] [2022-11-18 01:45:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:25,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:26,425 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2022-11-18 01:45:26,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:26,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999768973] [2022-11-18 01:45:26,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999768973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:26,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:26,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:45:26,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535153929] [2022-11-18 01:45:26,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:26,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:45:26,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:26,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:45:26,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:45:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:26,429 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:26,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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) [2022-11-18 01:45:26,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:26,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:26,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:26,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:26,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:26,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:26,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:45:26,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:26,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:26,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:26,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:26,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:26,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:26,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:26,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-18 01:45:26,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:26,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:26,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:45:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 01:45:26,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:26,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:26,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-18 01:45:26,749 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:26,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:26,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1251406462, now seen corresponding path program 2 times [2022-11-18 01:45:26,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:26,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477637384] [2022-11-18 01:45:26,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:26,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-18 01:45:27,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:27,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477637384] [2022-11-18 01:45:27,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477637384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:27,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:27,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:45:27,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049632256] [2022-11-18 01:45:27,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:27,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:45:27,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:27,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:45:27,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:45:27,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:27,222 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:27,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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) [2022-11-18 01:45:27,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:27,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:27,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:27,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:45:27,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:27,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:27,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-18 01:45:27,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:27,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:27,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:27,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:45:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 01:45:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:27,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-18 01:45:27,635 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-18 01:45:27,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:27,636 INFO L85 PathProgramCache]: Analyzing trace with hash 153889192, now seen corresponding path program 3 times [2022-11-18 01:45:27,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:27,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349228954] [2022-11-18 01:45:27,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:27,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:27,779 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-18 01:45:27,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:27,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349228954] [2022-11-18 01:45:27,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349228954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:27,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:27,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:27,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391301259] [2022-11-18 01:45:27,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:27,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:27,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:27,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:27,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:27,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:27,783 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:27,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2022-11-18 01:45:27,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:27,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:27,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-18 01:45:27,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-11-18 01:45:27,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:27,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:27,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-18 01:45:27,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-11-18 01:45:27,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-18 01:45:27,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:27,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:27,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.