./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 04:33:32,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 04:33:32,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 04:33:32,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 04:33:32,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 04:33:32,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 04:33:32,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 04:33:32,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 04:33:32,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 04:33:32,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 04:33:32,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 04:33:32,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 04:33:32,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 04:33:32,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 04:33:32,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 04:33:32,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 04:33:32,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 04:33:32,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 04:33:32,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 04:33:32,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 04:33:32,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 04:33:32,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 04:33:32,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 04:33:32,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 04:33:32,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 04:33:32,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 04:33:32,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 04:33:32,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 04:33:32,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 04:33:32,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 04:33:32,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 04:33:32,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 04:33:32,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 04:33:32,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 04:33:32,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 04:33:32,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 04:33:32,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 04:33:32,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 04:33:32,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 04:33:32,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 04:33:32,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 04:33:32,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-25 04:33:32,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 04:33:32,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 04:33:32,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 04:33:32,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 04:33:32,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 04:33:32,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 04:33:32,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 04:33:32,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 04:33:32,349 INFO L138 SettingsManager]: * Use SBE=true [2021-11-25 04:33:32,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 04:33:32,351 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 04:33:32,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 04:33:32,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 04:33:32,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 04:33:32,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 04:33:32,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 04:33:32,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 04:33:32,352 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 04:33:32,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 04:33:32,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 04:33:32,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 04:33:32,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 04:33:32,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 04:33:32,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-25 04:33:32,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 04:33:32,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 04:33:32,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 04:33:32,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 04:33:32,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 04:33:32,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-25 04:33:32,357 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-25 04:33:32,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 04:33:32,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-25 04:33:32,357 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-25 04:33:32,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 04:33:32,358 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-25 04:33:32,358 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-25 04:33:32,358 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_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2021-11-25 04:33:32,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 04:33:32,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 04:33:32,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 04:33:32,736 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 04:33:32,737 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 04:33:32,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2021-11-25 04:33:32,816 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/data/316750d1d/fe2be22e72dc409bb4a11d0d6df83130/FLAG5ec6c7e43 [2021-11-25 04:33:33,435 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 04:33:33,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2021-11-25 04:33:33,468 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/data/316750d1d/fe2be22e72dc409bb4a11d0d6df83130/FLAG5ec6c7e43 [2021-11-25 04:33:33,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/data/316750d1d/fe2be22e72dc409bb4a11d0d6df83130 [2021-11-25 04:33:33,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 04:33:33,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 04:33:33,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 04:33:33,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 04:33:33,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 04:33:33,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:33:33" (1/1) ... [2021-11-25 04:33:33,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f7e8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:33, skipping insertion in model container [2021-11-25 04:33:33,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:33:33" (1/1) ... [2021-11-25 04:33:33,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 04:33:33,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 04:33:34,029 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-25 04:33:34,244 WARN L230 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_52e7af2f-769f-4e71-a816-daf379d44b38/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2021-11-25 04:33:34,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 04:33:34,266 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 04:33:34,295 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-25 04:33:34,326 WARN L230 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_52e7af2f-769f-4e71-a816-daf379d44b38/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2021-11-25 04:33:34,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 04:33:34,396 INFO L208 MainTranslator]: Completed translation [2021-11-25 04:33:34,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34 WrapperNode [2021-11-25 04:33:34,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 04:33:34,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 04:33:34,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 04:33:34,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 04:33:34,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (1/1) ... [2021-11-25 04:33:34,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (1/1) ... [2021-11-25 04:33:34,479 INFO L137 Inliner]: procedures = 173, calls = 24, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 108 [2021-11-25 04:33:34,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 04:33:34,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 04:33:34,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 04:33:34,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 04:33:34,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (1/1) ... [2021-11-25 04:33:34,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (1/1) ... [2021-11-25 04:33:34,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (1/1) ... [2021-11-25 04:33:34,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (1/1) ... [2021-11-25 04:33:34,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (1/1) ... [2021-11-25 04:33:34,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (1/1) ... [2021-11-25 04:33:34,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (1/1) ... [2021-11-25 04:33:34,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 04:33:34,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 04:33:34,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 04:33:34,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 04:33:34,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (1/1) ... [2021-11-25 04:33:34,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 04:33:34,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:34,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 04:33:34,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 04:33:34,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 04:33:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-25 04:33:34,622 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-25 04:33:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 04:33:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-25 04:33:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 04:33:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 04:33:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 04:33:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 04:33:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-25 04:33:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 04:33:34,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 04:33:34,625 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 04:33:34,736 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 04:33:34,738 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 04:33:34,969 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 04:33:35,055 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 04:33:35,055 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-25 04:33:35,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:33:35 BoogieIcfgContainer [2021-11-25 04:33:35,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 04:33:35,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 04:33:35,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 04:33:35,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 04:33:35,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:33:33" (1/3) ... [2021-11-25 04:33:35,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec61a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:33:35, skipping insertion in model container [2021-11-25 04:33:35,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:33:34" (2/3) ... [2021-11-25 04:33:35,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec61a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:33:35, skipping insertion in model container [2021-11-25 04:33:35,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:33:35" (3/3) ... [2021-11-25 04:33:35,067 INFO L111 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs.i [2021-11-25 04:33:35,073 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 04:33:35,073 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 04:33:35,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 04:33:35,074 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 04:33:35,112 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,113 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,113 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,113 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,113 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,113 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,114 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,114 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,114 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,114 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,114 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,115 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,115 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,115 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,115 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,115 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,115 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,116 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,116 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,116 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,116 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,116 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,120 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,120 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,120 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,122 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,122 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,122 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,122 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,122 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,137 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,137 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,137 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,138 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:35,139 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 04:33:35,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-25 04:33:35,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:35,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-25 04:33:35,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-25 04:33:35,253 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2021-11-25 04:33:35,260 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 04:33:35,261 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 04:33:35,506 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:35,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:35,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1499618088, now seen corresponding path program 1 times [2021-11-25 04:33:35,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:35,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334204831] [2021-11-25 04:33:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:35,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 04:33:35,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:35,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334204831] [2021-11-25 04:33:35,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334204831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:35,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:35,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 04:33:35,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055200930] [2021-11-25 04:33:35,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:35,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 04:33:35,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:35,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 04:33:35,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 04:33:35,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:35,779 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:35,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 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) [2021-11-25 04:33:35,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:35,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 04:33:35,817 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:35,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:35,818 INFO L85 PathProgramCache]: Analyzing trace with hash -457406693, now seen corresponding path program 1 times [2021-11-25 04:33:35,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:35,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522311069] [2021-11-25 04:33:35,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:35,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:35,961 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 04:33:35,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:35,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522311069] [2021-11-25 04:33:35,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522311069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:35,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:35,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:35,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141710924] [2021-11-25 04:33:35,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:35,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:35,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:35,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:35,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:35,966 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:35,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-25 04:33:35,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:35,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:36,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:36,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 04:33:36,098 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:36,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:36,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1728343174, now seen corresponding path program 1 times [2021-11-25 04:33:36,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:36,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995779858] [2021-11-25 04:33:36,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:36,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:36,255 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 04:33:36,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:36,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995779858] [2021-11-25 04:33:36,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995779858] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:36,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:36,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:36,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173348582] [2021-11-25 04:33:36,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:36,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:36,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:36,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:36,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:36,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:36,259 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:36,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-25 04:33:36,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:36,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:36,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:36,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:36,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:36,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:36,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 04:33:36,349 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:36,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1481314266, now seen corresponding path program 1 times [2021-11-25 04:33:36,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:36,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287945869] [2021-11-25 04:33:36,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:36,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:36,932 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:36,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:36,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287945869] [2021-11-25 04:33:36,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287945869] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:36,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885568354] [2021-11-25 04:33:36,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:36,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:36,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:36,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:36,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 04:33:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:37,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 04:33:37,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:37,211 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 04:33:37,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 04:33:37,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885568354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:37,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 04:33:37,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-25 04:33:37,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190812536] [2021-11-25 04:33:37,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:37,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:37,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:37,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:37,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-25 04:33:37,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:37,215 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:37,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-25 04:33:37,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:37,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:37,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:37,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:37,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:37,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:37,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:37,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:37,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:37,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:37,517 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:37,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1115931353, now seen corresponding path program 1 times [2021-11-25 04:33:37,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:37,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205409186] [2021-11-25 04:33:37,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:37,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:37,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:37,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205409186] [2021-11-25 04:33:37,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205409186] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:37,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694464398] [2021-11-25 04:33:37,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:37,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:37,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:37,748 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:37,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 04:33:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:37,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-25 04:33:37,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:38,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:33:38,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:38,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:38,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694464398] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:38,653 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:38,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 15 [2021-11-25 04:33:38,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5433796] [2021-11-25 04:33:38,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:38,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 04:33:38,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:38,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 04:33:38,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-11-25 04:33:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:38,656 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:38,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 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) [2021-11-25 04:33:38,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:38,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:38,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:38,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:38,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:39,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-25 04:33:39,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:39,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:39,738 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:39,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:39,738 INFO L85 PathProgramCache]: Analyzing trace with hash 609460228, now seen corresponding path program 1 times [2021-11-25 04:33:39,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:39,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569502556] [2021-11-25 04:33:39,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:39,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 04:33:39,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:39,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569502556] [2021-11-25 04:33:39,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569502556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:39,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:39,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 04:33:39,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897369852] [2021-11-25 04:33:39,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:39,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 04:33:39,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:39,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 04:33:39,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 04:33:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:39,955 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:39,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2021-11-25 04:33:39,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:39,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:39,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:39,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:39,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-25 04:33:39,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 04:33:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:40,103 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 04:33:40,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 04:33:40,121 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-25 04:33:40,122 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2021-11-25 04:33:40,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-25 04:33:40,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:40,126 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-25 04:33:40,133 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-25 04:33:40,133 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 04:33:40,134 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 04:33:40,138 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:40,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:40,139 INFO L85 PathProgramCache]: Analyzing trace with hash 24858482, now seen corresponding path program 1 times [2021-11-25 04:33:40,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:40,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046635296] [2021-11-25 04:33:40,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:40,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:40,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2021-11-25 04:33:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:40,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:40,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046635296] [2021-11-25 04:33:40,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046635296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:40,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:40,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 04:33:40,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634412551] [2021-11-25 04:33:40,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:40,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 04:33:40,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:40,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 04:33:40,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 04:33:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,158 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:40,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-11-25 04:33:40,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 04:33:40,165 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:40,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:40,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1969669199, now seen corresponding path program 1 times [2021-11-25 04:33:40,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:40,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606358880] [2021-11-25 04:33:40,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:40,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:40,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:40,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:40,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606358880] [2021-11-25 04:33:40,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606358880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:40,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:40,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:40,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977744778] [2021-11-25 04:33:40,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:40,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:40,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:40,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:40,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:40,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,199 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:40,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-25 04:33:40,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 04:33:40,353 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:40,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1907987913, now seen corresponding path program 1 times [2021-11-25 04:33:40,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:40,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485885043] [2021-11-25 04:33:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:40,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 04:33:40,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:40,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485885043] [2021-11-25 04:33:40,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485885043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:40,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:40,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:40,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269102876] [2021-11-25 04:33:40,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:40,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:40,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:40,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:40,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:40,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,432 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:40,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-25 04:33:40,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 04:33:40,507 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:40,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:40,507 INFO L85 PathProgramCache]: Analyzing trace with hash -221432136, now seen corresponding path program 1 times [2021-11-25 04:33:40,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:40,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591680837] [2021-11-25 04:33:40,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:40,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 04:33:40,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:40,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591680837] [2021-11-25 04:33:40,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591680837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:40,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:40,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:40,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362264229] [2021-11-25 04:33:40,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:40,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:40,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:40,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:40,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:40,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,561 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:40,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-25 04:33:40,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:40,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:40,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 04:33:40,590 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:40,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:40,590 INFO L85 PathProgramCache]: Analyzing trace with hash 637346815, now seen corresponding path program 1 times [2021-11-25 04:33:40,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:40,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76460775] [2021-11-25 04:33:40,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:40,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:40,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:40,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:40,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76460775] [2021-11-25 04:33:40,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76460775] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:40,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301822873] [2021-11-25 04:33:40,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:40,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:40,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:40,753 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:40,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 04:33:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:40,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-25 04:33:40,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:41,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:33:41,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:41,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:41,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301822873] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:41,495 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:41,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 16 [2021-11-25 04:33:41,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317832714] [2021-11-25 04:33:41,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:41,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 04:33:41,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:41,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 04:33:41,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-11-25 04:33:41,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:41,497 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:41,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 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) [2021-11-25 04:33:41,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:41,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:41,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:41,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:41,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:41,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:41,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:41,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-25 04:33:41,933 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:41,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:41,933 INFO L85 PathProgramCache]: Analyzing trace with hash 971122626, now seen corresponding path program 1 times [2021-11-25 04:33:41,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:41,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270428811] [2021-11-25 04:33:41,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:41,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:41,994 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:41,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:41,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270428811] [2021-11-25 04:33:41,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270428811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:41,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:41,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 04:33:41,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656530015] [2021-11-25 04:33:41,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:41,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 04:33:41,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:41,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 04:33:41,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 04:33:41,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:41,997 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:41,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2021-11-25 04:33:41,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:41,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:41,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:41,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:41,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:41,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:42,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 04:33:42,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 04:33:42,080 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:42,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:42,081 INFO L85 PathProgramCache]: Analyzing trace with hash 740281915, now seen corresponding path program 1 times [2021-11-25 04:33:42,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:42,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167169837] [2021-11-25 04:33:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:42,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 04:33:42,098 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 04:33:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 04:33:42,130 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-25 04:33:42,130 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 04:33:42,130 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 04:33:42,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 04:33:42,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 04:33:42,133 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-25 04:33:42,133 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2021-11-25 04:33:42,133 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 04:33:42,134 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-25 04:33:42,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,158 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,158 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,158 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,158 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,158 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,160 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,160 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,160 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,160 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:42,163 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 04:33:42,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-25 04:33:42,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:42,165 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-25 04:33:42,170 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-25 04:33:42,171 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 04:33:42,171 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 04:33:42,175 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:42,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:42,176 INFO L85 PathProgramCache]: Analyzing trace with hash -403506638, now seen corresponding path program 1 times [2021-11-25 04:33:42,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:42,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586433120] [2021-11-25 04:33:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:42,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:42,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2021-11-25 04:33:42,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:42,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:42,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586433120] [2021-11-25 04:33:42,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586433120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:42,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:42,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 04:33:42,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731173412] [2021-11-25 04:33:42,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:42,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 04:33:42,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:42,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 04:33:42,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 04:33:42,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,194 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:42,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-11-25 04:33:42,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 04:33:42,201 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:42,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:42,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1667315025, now seen corresponding path program 1 times [2021-11-25 04:33:42,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:42,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697029021] [2021-11-25 04:33:42,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:42,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:42,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:42,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697029021] [2021-11-25 04:33:42,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697029021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:42,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:42,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:42,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93117587] [2021-11-25 04:33:42,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:42,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:42,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:42,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:42,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:42,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,272 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:42,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-25 04:33:42,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 04:33:42,429 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:42,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:42,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1723098903, now seen corresponding path program 1 times [2021-11-25 04:33:42,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:42,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019052700] [2021-11-25 04:33:42,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:42,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:42,468 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 04:33:42,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:42,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019052700] [2021-11-25 04:33:42,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019052700] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:42,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:42,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:42,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675023574] [2021-11-25 04:33:42,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:42,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:42,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:42,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:42,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:42,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,471 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:42,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-25 04:33:42,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 04:33:42,562 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:42,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:42,563 INFO L85 PathProgramCache]: Analyzing trace with hash -481561227, now seen corresponding path program 1 times [2021-11-25 04:33:42,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:42,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299952125] [2021-11-25 04:33:42,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:42,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 04:33:42,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:42,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299952125] [2021-11-25 04:33:42,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299952125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:42,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:42,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:42,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316699135] [2021-11-25 04:33:42,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:42,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:42,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:42,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:42,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:42,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,608 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:42,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-25 04:33:42,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:42,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 04:33:42,644 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:42,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:42,644 INFO L85 PathProgramCache]: Analyzing trace with hash 191959647, now seen corresponding path program 1 times [2021-11-25 04:33:42,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:42,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174212498] [2021-11-25 04:33:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:42,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:42,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:42,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:42,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174212498] [2021-11-25 04:33:42,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174212498] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:42,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378014383] [2021-11-25 04:33:42,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:42,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:42,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:42,760 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:42,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 04:33:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:42,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-25 04:33:42,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:43,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:33:43,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:43,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:43,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378014383] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:43,463 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:43,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 16 [2021-11-25 04:33:43,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185551731] [2021-11-25 04:33:43,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:43,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 04:33:43,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:43,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 04:33:43,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-11-25 04:33:43,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:43,465 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:43,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 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) [2021-11-25 04:33:43,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:43,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:43,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:43,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:43,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:44,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:33:44,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:44,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-25 04:33:44,293 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:44,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:44,294 INFO L85 PathProgramCache]: Analyzing trace with hash -313766373, now seen corresponding path program 1 times [2021-11-25 04:33:44,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:44,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788775193] [2021-11-25 04:33:44,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:44,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 04:33:44,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:44,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788775193] [2021-11-25 04:33:44,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788775193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:44,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:44,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:44,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766547307] [2021-11-25 04:33:44,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:44,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:44,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:44,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:44,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:44,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:44,353 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:44,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-25 04:33:44,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:44,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:44,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:44,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:44,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:33:44,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:44,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:44,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:44,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:44,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-25 04:33:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:44,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 04:33:44,615 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:44,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:44,615 INFO L85 PathProgramCache]: Analyzing trace with hash 834250691, now seen corresponding path program 1 times [2021-11-25 04:33:44,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:44,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766105294] [2021-11-25 04:33:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:44,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:44,896 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:44,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:44,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766105294] [2021-11-25 04:33:44,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766105294] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:44,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431563806] [2021-11-25 04:33:44,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:44,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:44,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:44,899 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:44,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 04:33:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:45,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-25 04:33:45,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:45,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:33:45,274 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 04:33:45,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 04:33:45,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431563806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:45,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 04:33:45,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 14 [2021-11-25 04:33:45,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94477620] [2021-11-25 04:33:45,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:45,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 04:33:45,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:45,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 04:33:45,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-25 04:33:45,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:45,277 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:45,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2021-11-25 04:33:45,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:45,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:45,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:45,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:45,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-25 04:33:45,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:45,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:33:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:45,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:45,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:45,648 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:45,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:45,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1494225130, now seen corresponding path program 1 times [2021-11-25 04:33:45,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:45,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116004601] [2021-11-25 04:33:45,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:45,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:45,838 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:45,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:45,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116004601] [2021-11-25 04:33:45,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116004601] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:45,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768269923] [2021-11-25 04:33:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:45,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:45,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:45,845 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:45,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 04:33:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:45,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-25 04:33:45,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:46,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:33:46,363 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:46,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 04:33:46,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768269923] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:46,650 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:46,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 17 [2021-11-25 04:33:46,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318239459] [2021-11-25 04:33:46,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:46,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-25 04:33:46,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:46,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-25 04:33:46,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-11-25 04:33:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:46,652 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:46,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 17 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) [2021-11-25 04:33:46,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:46,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:46,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:46,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:46,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:33:46,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:46,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:46,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 04:33:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:46,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:46,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:47,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:47,028 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 04:33:47,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:47,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1586127331, now seen corresponding path program 1 times [2021-11-25 04:33:47,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:47,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119672317] [2021-11-25 04:33:47,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:47,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 04:33:47,085 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 04:33:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 04:33:47,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-25 04:33:47,127 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 04:33:47,128 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 04:33:47,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 04:33:47,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 04:33:47,131 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 04:33:47,131 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/3) [2021-11-25 04:33:47,131 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 04:33:47,131 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-25 04:33:47,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,151 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,152 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,158 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,158 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,158 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,158 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,158 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,159 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,160 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,160 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,160 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,160 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,160 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,161 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,162 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,163 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,163 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,163 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,163 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,163 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,164 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,164 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,164 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,164 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,164 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,165 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,165 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,165 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,165 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,165 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,166 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,166 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,166 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,166 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,166 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,166 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,167 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,167 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,167 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,167 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,167 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,168 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,168 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,168 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,168 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,168 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,168 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,169 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,169 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,169 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,169 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,169 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,170 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,170 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,170 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,170 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,170 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,170 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,171 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,171 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,171 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,171 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,171 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,171 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,172 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,172 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,172 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,172 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,172 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,172 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,173 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,173 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,173 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,173 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,173 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,173 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,173 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,174 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,174 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,174 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,174 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,174 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,175 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,175 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,175 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,175 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,175 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,176 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,176 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,176 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,176 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,176 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,177 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,177 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,177 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,177 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,177 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,178 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,179 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,179 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,179 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,179 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,180 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,180 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,180 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,180 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,180 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,180 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,181 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,182 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,183 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,184 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 04:33:47,185 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 04:33:47,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-25 04:33:47,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:47,187 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-25 04:33:47,194 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2021-11-25 04:33:47,194 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 04:33:47,194 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 04:33:47,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2021-11-25 04:33:47,476 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:47,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:47,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1576097070, now seen corresponding path program 1 times [2021-11-25 04:33:47,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:47,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584349610] [2021-11-25 04:33:47,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:47,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:47,510 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-25 04:33:47,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:47,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584349610] [2021-11-25 04:33:47,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584349610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:47,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:47,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 04:33:47,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686397979] [2021-11-25 04:33:47,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:47,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 04:33:47,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:47,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 04:33:47,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 04:33:47,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,513 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:47,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2021-11-25 04:33:47,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 04:33:47,547 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:47,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:47,548 INFO L85 PathProgramCache]: Analyzing trace with hash 882867861, now seen corresponding path program 1 times [2021-11-25 04:33:47,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:47,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075565130] [2021-11-25 04:33:47,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:47,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:47,597 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-25 04:33:47,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:47,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075565130] [2021-11-25 04:33:47,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075565130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:47,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:47,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:47,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284660751] [2021-11-25 04:33:47,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:47,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:47,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:47,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:47,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:47,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,600 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:47,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-25 04:33:47,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:47,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-25 04:33:47,710 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:47,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:47,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1629567418, now seen corresponding path program 1 times [2021-11-25 04:33:47,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:47,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000547704] [2021-11-25 04:33:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:47,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:47,781 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-25 04:33:47,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:47,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000547704] [2021-11-25 04:33:47,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000547704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:47,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:47,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:47,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410813375] [2021-11-25 04:33:47,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:47,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:47,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:47,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:47,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:47,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,784 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:47,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-25 04:33:47,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:47,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:47,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-25 04:33:47,896 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:47,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:47,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1807836748, now seen corresponding path program 1 times [2021-11-25 04:33:47,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:47,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418663494] [2021-11-25 04:33:47,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:47,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:47,953 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-25 04:33:47,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:47,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418663494] [2021-11-25 04:33:47,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418663494] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:47,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:47,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:47,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973390444] [2021-11-25 04:33:47,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:47,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:47,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:47,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:47,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,956 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:47,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-25 04:33:47,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:47,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:47,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:47,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:48,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-25 04:33:48,107 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:48,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:48,107 INFO L85 PathProgramCache]: Analyzing trace with hash 912236030, now seen corresponding path program 1 times [2021-11-25 04:33:48,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:48,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537812276] [2021-11-25 04:33:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:48,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:48,161 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-25 04:33:48,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:48,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537812276] [2021-11-25 04:33:48,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537812276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:48,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 04:33:48,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 04:33:48,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986142768] [2021-11-25 04:33:48,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:48,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:48,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:48,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:48,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 04:33:48,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:48,164 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:48,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-25 04:33:48,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:48,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-25 04:33:48,352 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:48,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:48,352 INFO L85 PathProgramCache]: Analyzing trace with hash -358786438, now seen corresponding path program 1 times [2021-11-25 04:33:48,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:48,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667495331] [2021-11-25 04:33:48,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:48,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:48,520 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:48,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:48,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667495331] [2021-11-25 04:33:48,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667495331] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:48,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440387038] [2021-11-25 04:33:48,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:48,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:48,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:48,528 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:48,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-25 04:33:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:48,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 04:33:48,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-25 04:33:48,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 04:33:48,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440387038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:48,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 04:33:48,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-25 04:33:48,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962078210] [2021-11-25 04:33:48,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:48,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 04:33:48,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:48,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 04:33:48,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-25 04:33:48,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:48,842 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:48,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-25 04:33:48,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:48,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:48,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:48,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:48,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:49,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:49,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-25 04:33:49,192 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:49,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:49,193 INFO L85 PathProgramCache]: Analyzing trace with hash 715076229, now seen corresponding path program 1 times [2021-11-25 04:33:49,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:49,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403019859] [2021-11-25 04:33:49,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:49,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:49,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:49,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403019859] [2021-11-25 04:33:49,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403019859] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:49,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506372102] [2021-11-25 04:33:49,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:49,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:49,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:49,865 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:49,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-25 04:33:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:50,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-25 04:33:50,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:50,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:33:50,341 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-25 04:33:50,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 04:33:50,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506372102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 04:33:50,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 04:33:50,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 18 [2021-11-25 04:33:50,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284567142] [2021-11-25 04:33:50,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 04:33:50,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 04:33:50,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:50,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 04:33:50,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-11-25 04:33:50,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:50,344 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:50,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2021-11-25 04:33:50,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:50,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:50,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:50,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:50,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:50,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:50,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:50,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:50,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:50,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:50,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:50,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-25 04:33:50,664 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:50,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:50,665 INFO L85 PathProgramCache]: Analyzing trace with hash -379478168, now seen corresponding path program 1 times [2021-11-25 04:33:50,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:50,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994473575] [2021-11-25 04:33:50,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:50,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:50,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:50,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994473575] [2021-11-25 04:33:50,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994473575] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:50,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002963843] [2021-11-25 04:33:50,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:50,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:50,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:50,867 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:50,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-25 04:33:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:51,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-25 04:33:51,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:51,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:33:51,424 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 04:33:51,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 04:33:51,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002963843] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:51,726 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:51,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 6] total 16 [2021-11-25 04:33:51,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378242237] [2021-11-25 04:33:51,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:51,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 04:33:51,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:51,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 04:33:51,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-11-25 04:33:51,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:51,728 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:51,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.5) internal successors, (184), 16 states have internal predecessors, (184), 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) [2021-11-25 04:33:51,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:51,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:51,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:51,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:51,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:51,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:51,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:51,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:52,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:52,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:52,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:52,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:52,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:52,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:52,231 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:52,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:52,232 INFO L85 PathProgramCache]: Analyzing trace with hash 207964310, now seen corresponding path program 1 times [2021-11-25 04:33:52,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:52,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883822186] [2021-11-25 04:33:52,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:52,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:33:52,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:52,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883822186] [2021-11-25 04:33:52,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883822186] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:52,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758050619] [2021-11-25 04:33:52,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:52,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:52,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:52,395 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:52,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-25 04:33:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:52,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-25 04:33:52,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:52,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:33:53,034 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:53,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:53,357 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-25 04:33:53,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758050619] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:53,357 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:53,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 6] total 17 [2021-11-25 04:33:53,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514910830] [2021-11-25 04:33:53,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:53,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-25 04:33:53,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:53,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-25 04:33:53,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-11-25 04:33:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:53,359 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:53,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.705882352941176) internal successors, (182), 17 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) [2021-11-25 04:33:53,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:53,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:53,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:53,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:53,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:53,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:53,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:53,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:53,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 04:33:53,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:54,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-25 04:33:54,033 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:54,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:54,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1498346995, now seen corresponding path program 1 times [2021-11-25 04:33:54,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:54,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238040491] [2021-11-25 04:33:54,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:54,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 04:33:54,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:54,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238040491] [2021-11-25 04:33:54,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238040491] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:54,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129388843] [2021-11-25 04:33:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:54,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:54,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:54,207 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:54,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-25 04:33:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:54,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-25 04:33:54,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:55,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:33:55,106 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:55,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:55,458 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 04:33:55,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129388843] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:55,458 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:55,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 6] total 18 [2021-11-25 04:33:55,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743149669] [2021-11-25 04:33:55,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:55,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-25 04:33:55,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:55,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-25 04:33:55,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-11-25 04:33:55,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:55,461 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:55,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.5) internal successors, (207), 18 states have internal predecessors, (207), 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) [2021-11-25 04:33:55,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:55,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:55,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:55,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:55,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:55,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:55,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:55,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-25 04:33:55,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-25 04:33:55,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:56,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-25 04:33:56,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-25 04:33:56,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:56,790 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:33:56,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:33:56,790 INFO L85 PathProgramCache]: Analyzing trace with hash 281737804, now seen corresponding path program 2 times [2021-11-25 04:33:56,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:33:56,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258886236] [2021-11-25 04:33:56,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:33:56,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:33:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:33:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:56,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:33:56,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258886236] [2021-11-25 04:33:56,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258886236] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:33:56,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731620579] [2021-11-25 04:33:56,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 04:33:56,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:33:56,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:33:56,955 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:33:56,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-25 04:33:57,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 04:33:57,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:33:57,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-25 04:33:57,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:33:57,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:33:57,736 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:33:57,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:33:58,111 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:33:58,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731620579] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:33:58,111 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:33:58,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 8] total 22 [2021-11-25 04:33:58,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562269910] [2021-11-25 04:33:58,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:33:58,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-25 04:33:58,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:33:58,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-25 04:33:58,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2021-11-25 04:33:58,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:58,113 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:33:58,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 22 states have internal predecessors, (209), 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) [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-25 04:33:58,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:59,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:33:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:33:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:33:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:33:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:33:59,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-25 04:33:59,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-25 04:33:59,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:00,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:00,024 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:34:00,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:00,025 INFO L85 PathProgramCache]: Analyzing trace with hash -980611494, now seen corresponding path program 1 times [2021-11-25 04:34:00,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:00,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512501417] [2021-11-25 04:34:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:00,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:00,200 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 04:34:00,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:00,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512501417] [2021-11-25 04:34:00,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512501417] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:00,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889362002] [2021-11-25 04:34:00,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:00,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:00,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:00,202 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:00,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-25 04:34:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:00,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-25 04:34:00,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:00,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:00,944 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:00,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:01,346 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 04:34:01,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889362002] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:01,346 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:01,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 8] total 22 [2021-11-25 04:34:01,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005890617] [2021-11-25 04:34:01,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:01,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-25 04:34:01,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:01,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-25 04:34:01,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-11-25 04:34:01,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:01,348 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:01,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.045454545454545) internal successors, (199), 22 states have internal predecessors, (199), 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) [2021-11-25 04:34:01,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:01,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:01,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:01,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:01,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:01,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:01,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:01,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:01,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-25 04:34:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-25 04:34:01,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:03,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:03,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-25 04:34:03,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:03,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 04:34:03,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:03,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-11-25 04:34:03,479 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:34:03,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:03,479 INFO L85 PathProgramCache]: Analyzing trace with hash 873525732, now seen corresponding path program 1 times [2021-11-25 04:34:03,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:03,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302611319] [2021-11-25 04:34:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:03,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:03,787 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:03,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:03,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302611319] [2021-11-25 04:34:03,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302611319] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:03,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569836850] [2021-11-25 04:34:03,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:03,788 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:03,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:03,790 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:03,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-25 04:34:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:03,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-25 04:34:03,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:03,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 04:34:04,065 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 04:34:04,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 04:34:04,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2021-11-25 04:34:04,280 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 04:34:04,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 04:34:04,391 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 04:34:04,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:04,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 04:34:04,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 26 [2021-11-25 04:34:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:04,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:04,739 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_935 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_935) |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2021-11-25 04:34:04,837 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_935 (Array Int Int)) (aux_div_aux_mod_~s~0_21_32 Int)) (let ((.cse0 (+ (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_935) |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (* 4294967296 aux_div_aux_mod_~s~0_21_32)))) (or (<= 4294967296 .cse0) (< .cse0 0) (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))) is different from false [2021-11-25 04:34:04,936 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:34:04,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 75 treesize of output 59 [2021-11-25 04:34:04,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 112 treesize of output 96 [2021-11-25 04:34:04,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 42 [2021-11-25 04:34:05,486 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 23 not checked. [2021-11-25 04:34:05,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569836850] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:05,487 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:05,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 8] total 29 [2021-11-25 04:34:05,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328293407] [2021-11-25 04:34:05,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:05,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-25 04:34:05,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:05,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-25 04:34:05,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=600, Unknown=2, NotChecked=102, Total=812 [2021-11-25 04:34:05,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:05,491 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:05,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.862068965517241) internal successors, (199), 29 states have internal predecessors, (199), 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) [2021-11-25 04:34:05,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:05,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:05,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:05,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:05,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:05,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:05,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:05,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-25 04:34:05,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:05,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-25 04:34:05,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:05,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-11-25 04:34:05,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 04:34:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-25 04:34:07,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:07,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-25 04:34:07,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-25 04:34:07,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:07,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-25 04:34:07,728 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:34:07,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:07,729 INFO L85 PathProgramCache]: Analyzing trace with hash 511130660, now seen corresponding path program 1 times [2021-11-25 04:34:07,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:07,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269568250] [2021-11-25 04:34:07,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:07,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:08,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:08,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269568250] [2021-11-25 04:34:08,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269568250] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:08,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048335368] [2021-11-25 04:34:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:08,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:08,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:08,069 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:08,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-25 04:34:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:08,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-25 04:34:08,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:08,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 04:34:08,519 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 04:34:08,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:08,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 04:34:08,843 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 04:34:08,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 49 [2021-11-25 04:34:08,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2021-11-25 04:34:08,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-25 04:34:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:09,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:09,280 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_987 (Array Int Int)) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse0 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987)) (.cse1 (mod c_~s~0 4294967296))) (or (not (= (mod (select (select .cse0 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1)) (not (= (mod (select (select .cse0 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1))))) is different from false [2021-11-25 04:34:09,363 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_987 (Array Int Int)) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse0 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987)) (.cse1 (mod c_~s~0 4294967296))) (or (not (= (mod (select (select .cse0 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1)) (not (= (mod (select (select .cse0 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1))))) (= (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))) is different from false [2021-11-25 04:34:09,396 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) is different from false [2021-11-25 04:34:09,562 INFO L354 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2021-11-25 04:34:09,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 126 treesize of output 108 [2021-11-25 04:34:09,588 INFO L354 Elim1Store]: treesize reduction 3, result has 72.7 percent of original size [2021-11-25 04:34:09,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 182 treesize of output 158 [2021-11-25 04:34:09,609 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:34:09,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 120 treesize of output 116 [2021-11-25 04:34:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 11 not checked. [2021-11-25 04:34:10,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048335368] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:10,440 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:10,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 9] total 31 [2021-11-25 04:34:10,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177392896] [2021-11-25 04:34:10,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:10,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-25 04:34:10,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:10,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-25 04:34:10,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=667, Unknown=3, NotChecked=162, Total=930 [2021-11-25 04:34:10,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:10,443 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:10,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.806451612903226) internal successors, (211), 31 states have internal predecessors, (211), 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) [2021-11-25 04:34:10,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:10,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:10,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:10,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:10,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:10,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:10,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:10,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-25 04:34:10,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:10,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-25 04:34:10,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:10,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-25 04:34:10,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-25 04:34:10,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:10,860 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|))) (let ((.cse2 (= .cse3 2)) (.cse4 (+ c_~s~0 1))) (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_ULTIMATE.start_main_~#t~1#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) .cse2 (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (= |c_thr1Thread3of3ForFork0_~#l~0#1.offset| 0) (not (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 0)) (<= .cse3 .cse4) (let ((.cse5 (mod c_~s~0 4294967296))) (or (and .cse2 (not (= (mod .cse3 4294967296) .cse5))) (and (not (= 2 .cse5)) (not (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse5))))) (<= .cse4 .cse3)))) is different from false [2021-11-25 04:34:10,873 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_~s~0 1)) (.cse2 (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|))) (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_ULTIMATE.start_main_~#t~1#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (= .cse2 2) (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (= |c_thr1Thread3of3ForFork0_~#l~0#1.offset| 0) (not (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 0)) (<= .cse2 .cse3) (<= .cse3 .cse2))) is different from false [2021-11-25 04:34:11,318 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (not (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 0))) is different from false [2021-11-25 04:34:11,782 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_987 (Array Int Int)) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse0 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987)) (.cse1 (mod c_~s~0 4294967296))) (or (not (= (mod (select (select .cse0 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1)) (not (= (mod (select (select .cse0 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1))))) (not (= (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))) (not (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 0))) is different from false [2021-11-25 04:34:12,328 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~s~0 1))) (and (<= .cse0 c_~t~0) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse2 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse1 (mod (select (select .cse2 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse1 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1) (not (= .cse1 (mod (select (select .cse2 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (<= c_~t~0 .cse0) (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (not (= 0 (select |c_#valid| |c_ULTIMATE.start_main_~#t~1#1.base|))) (= 2 c_~t~0) (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 1))) is different from false [2021-11-25 04:34:12,524 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~s~0 1))) (and (<= .cse0 c_~t~0) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse2 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse1 (mod (select (select .cse2 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse1 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1) (not (= .cse1 (mod (select (select .cse2 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (<= c_~t~0 .cse0) (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (not (= 0 (select |c_#valid| |c_ULTIMATE.start_main_~#t~1#1.base|))) (= 2 c_~t~0) (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 1))) is different from false [2021-11-25 04:34:13,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:13,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:13,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:13,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:13,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-25 04:34:13,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-25 04:34:13,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-25 04:34:13,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:13,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-25 04:34:13,328 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:34:13,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:13,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1765837220, now seen corresponding path program 2 times [2021-11-25 04:34:13,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:13,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207759448] [2021-11-25 04:34:13,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:13,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:13,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:13,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207759448] [2021-11-25 04:34:13,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207759448] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:13,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738377653] [2021-11-25 04:34:13,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 04:34:13,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:13,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:13,565 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:13,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-25 04:34:13,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 04:34:13,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:34:13,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-25 04:34:13,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:13,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 04:34:14,016 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 04:34:14,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:14,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 04:34:14,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:14,145 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 29 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:14,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:14,208 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1039 (Array Int Int))) (= (mod (select (select (store |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base| v_ArrVal_1039) |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))) is different from false [2021-11-25 04:34:14,225 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:34:14,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 23 [2021-11-25 04:34:14,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 38 treesize of output 30 [2021-11-25 04:34:14,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 11 [2021-11-25 04:34:14,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2021-11-25 04:34:14,786 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 4 not checked. [2021-11-25 04:34:14,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738377653] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:14,786 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:14,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 9] total 26 [2021-11-25 04:34:14,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485649982] [2021-11-25 04:34:14,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:14,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-25 04:34:14,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:14,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-25 04:34:14,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=514, Unknown=1, NotChecked=46, Total=650 [2021-11-25 04:34:14,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:14,788 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:14,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.115384615384615) internal successors, (185), 26 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) [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-11-25 04:34:14,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-11-25 04:34:14,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-25 04:34:14,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:15,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:15,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:15,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:15,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-25 04:34:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-25 04:34:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-25 04:34:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 04:34:15,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-11-25 04:34:16,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-25 04:34:16,040 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:34:16,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:16,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1306808812, now seen corresponding path program 1 times [2021-11-25 04:34:16,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:16,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908960261] [2021-11-25 04:34:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:16,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:16,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:16,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908960261] [2021-11-25 04:34:16,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908960261] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:16,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49551171] [2021-11-25 04:34:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:16,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:16,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:16,277 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:16,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-25 04:34:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:16,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-25 04:34:16,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:16,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 04:34:16,935 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 04:34:16,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 04:34:17,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:17,217 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 04:34:17,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:17,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 21 [2021-11-25 04:34:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:34:17,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:17,368 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1096 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base| v_ArrVal_1096) |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2021-11-25 04:34:17,554 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:34:17,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 24 [2021-11-25 04:34:17,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 41 treesize of output 33 [2021-11-25 04:34:17,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 26 [2021-11-25 04:34:18,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2021-11-25 04:34:18,304 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 04:34:18,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49551171] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:18,304 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:18,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 11] total 29 [2021-11-25 04:34:18,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558608067] [2021-11-25 04:34:18,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:18,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-25 04:34:18,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:18,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-25 04:34:18,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=641, Unknown=1, NotChecked=52, Total=812 [2021-11-25 04:34:18,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:18,307 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:18,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.482758620689655) internal successors, (188), 29 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) [2021-11-25 04:34:18,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:18,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:18,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:18,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:18,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:18,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:18,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:18,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:18,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:18,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:18,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:18,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-11-25 04:34:18,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-11-25 04:34:18,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-25 04:34:18,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-25 04:34:18,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:20,477 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_~s~0 1)) (.cse2 (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|))) (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (not (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 0)) (or (<= .cse2 .cse3) (< (div .cse2 4294967296) (+ (div c_~s~0 4294967296) 1))) (<= .cse3 .cse2))) is different from false [2021-11-25 04:34:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-25 04:34:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-25 04:34:22,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-25 04:34:22,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-25 04:34:22,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:22,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-25 04:34:22,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:23,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-25 04:34:23,045 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:34:23,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:23,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1588944981, now seen corresponding path program 1 times [2021-11-25 04:34:23,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:23,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331210809] [2021-11-25 04:34:23,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:23,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-25 04:34:23,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:23,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331210809] [2021-11-25 04:34:23,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331210809] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:23,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252313408] [2021-11-25 04:34:23,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:23,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:23,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:23,233 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:23,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-25 04:34:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:23,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-25 04:34:23,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:24,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 04:34:24,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 04:34:24,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252313408] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:24,681 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:24,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 7] total 20 [2021-11-25 04:34:24,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914644284] [2021-11-25 04:34:24,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:24,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-25 04:34:24,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-25 04:34:24,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2021-11-25 04:34:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:24,683 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:24,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 10.55) internal successors, (211), 20 states have internal predecessors, (211), 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) [2021-11-25 04:34:24,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:24,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:24,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:24,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:24,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-11-25 04:34:24,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:25,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-25 04:34:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-25 04:34:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-25 04:34:25,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-25 04:34:25,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:25,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 04:34:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:25,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:25,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-25 04:34:25,722 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:34:25,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:25,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2085730488, now seen corresponding path program 1 times [2021-11-25 04:34:25,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:25,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398826442] [2021-11-25 04:34:25,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:25,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:25,876 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-25 04:34:25,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:25,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398826442] [2021-11-25 04:34:25,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398826442] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:25,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873701209] [2021-11-25 04:34:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:25,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:25,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:25,878 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:25,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-25 04:34:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:26,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-25 04:34:26,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:26,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:26,787 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 04:34:26,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:27,218 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 04:34:27,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873701209] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:27,218 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:27,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 8] total 22 [2021-11-25 04:34:27,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299904166] [2021-11-25 04:34:27,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:27,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-25 04:34:27,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:27,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-25 04:34:27,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-11-25 04:34:27,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:27,220 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:27,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.772727272727273) internal successors, (215), 22 states have internal predecessors, (215), 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) [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-11-25 04:34:27,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-25 04:34:27,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-11-25 04:34:27,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:27,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-11-25 04:34:27,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:27,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:32,325 WARN L838 $PredicateComparison]: unable to prove that (and (= (mod c_~t~0 4294967296) (mod (+ c_~s~0 1) 4294967296)) (forall ((v_ArrVal_1039 (Array Int Int))) (= (mod (select (select (store |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base| v_ArrVal_1039) |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))) (= (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))) is different from false [2021-11-25 04:34:34,998 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~s~0 1))) (and (<= .cse0 c_~t~0) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse2 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse1 (mod (select (select .cse2 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse1 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1) (not (= .cse1 (mod (select (select .cse2 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (<= c_~t~0 .cse0) (= (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 2) (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (= |c_thr1Thread3of3ForFork0_~#l~0#1.offset| 0) (not (= 0 (select |c_#valid| |c_ULTIMATE.start_main_~#t~1#1.base|))) (not (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 0)))) is different from false [2021-11-25 04:34:37,430 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)))))))) is different from false [2021-11-25 04:34:45,365 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (= (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 2) (= |c_thr1Thread3of3ForFork0_~#l~0#1.offset| 0)) is different from false [2021-11-25 04:34:46,015 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|))) (let ((.cse2 (= .cse3 2)) (.cse4 (+ c_~s~0 1))) (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_ULTIMATE.start_main_~#t~1#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) .cse2 (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (= |c_thr1Thread3of3ForFork0_~#l~0#1.offset| 0) (<= .cse3 .cse4) (let ((.cse5 (mod c_~s~0 4294967296))) (or (and .cse2 (not (= (mod .cse3 4294967296) .cse5))) (and (not (= 2 .cse5)) (not (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse5))))) (<= .cse4 .cse3)))) is different from false [2021-11-25 04:34:46,029 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_~s~0 1)) (.cse2 (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|))) (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_ULTIMATE.start_main_~#t~1#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (= .cse2 2) (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (= |c_thr1Thread3of3ForFork0_~#l~0#1.offset| 0) (<= .cse2 .cse3) (<= .cse3 .cse2))) is different from false [2021-11-25 04:34:47,429 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_987 (Array Int Int)) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse0 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987)) (.cse1 (mod c_~s~0 4294967296))) (or (not (= (mod (select (select .cse0 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1)) (not (= (mod (select (select .cse0 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1))))) (not (= (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2021-11-25 04:34:47,672 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~s~0 1))) (and (<= .cse0 c_~t~0) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse2 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse1 (mod (select (select .cse2 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse1 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1) (not (= .cse1 (mod (select (select .cse2 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (<= c_~t~0 .cse0) (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (not (= 0 (select |c_#valid| |c_ULTIMATE.start_main_~#t~1#1.base|))))) is different from false [2021-11-25 04:34:47,704 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~s~0 1))) (and (<= .cse0 c_~t~0) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse2 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse1 (mod (select (select .cse2 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse1 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse1) (not (= .cse1 (mod (select (select .cse2 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (<= c_~t~0 .cse0) (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (not (= 0 (select |c_#valid| |c_ULTIMATE.start_main_~#t~1#1.base|))))) is different from false [2021-11-25 04:34:47,794 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_~s~0 1)) (.cse2 (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|))) (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (or (<= .cse2 .cse3) (< (div .cse2 4294967296) (+ (div c_~s~0 4294967296) 1))) (<= .cse3 .cse2))) is different from false [2021-11-25 04:34:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-25 04:34:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-25 04:34:49,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-25 04:34:49,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-25 04:34:49,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-25 04:34:49,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:49,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-25 04:34:49,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:49,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-25 04:34:49,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:49,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-25 04:34:49,656 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:34:49,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:49,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2104750727, now seen corresponding path program 2 times [2021-11-25 04:34:49,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:49,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115401743] [2021-11-25 04:34:49,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:49,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 04:34:49,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:49,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115401743] [2021-11-25 04:34:49,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115401743] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:49,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363971211] [2021-11-25 04:34:49,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 04:34:49,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:49,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:49,942 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:49,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-25 04:34:50,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 04:34:50,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:34:50,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-25 04:34:50,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:50,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 04:34:50,236 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 04:34:50,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 04:34:50,412 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 04:34:50,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:50,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 04:34:50,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 26 [2021-11-25 04:34:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:34:50,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:50,880 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1263 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_1263) |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2021-11-25 04:34:50,938 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1263 (Array Int Int)) (aux_div_aux_mod_~s~0_21_32 Int)) (let ((.cse0 (+ (* 4294967296 aux_div_aux_mod_~s~0_21_32) (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_1263) |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)))) (or (<= 4294967296 .cse0) (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (< .cse0 0)))) is different from false [2021-11-25 04:34:51,029 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:34:51,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 75 treesize of output 59 [2021-11-25 04:34:51,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 112 treesize of output 96 [2021-11-25 04:34:51,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 42 [2021-11-25 04:34:51,837 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 24 not checked. [2021-11-25 04:34:51,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363971211] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:51,837 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:51,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 10] total 29 [2021-11-25 04:34:51,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588721993] [2021-11-25 04:34:51,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:51,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-25 04:34:51,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:51,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-25 04:34:51,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=595, Unknown=2, NotChecked=102, Total=812 [2021-11-25 04:34:51,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:51,841 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:51,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.620689655172414) internal successors, (192), 29 states have internal predecessors, (192), 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) [2021-11-25 04:34:51,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:51,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:51,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:51,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:51,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:51,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:51,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:51,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:51,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:51,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-25 04:34:51,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-11-25 04:34:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-25 04:34:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-25 04:34:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-11-25 04:34:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-11-25 04:34:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:51,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-25 04:34:51,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-25 04:34:52,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:52,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-25 04:34:52,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:52,972 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:34:52,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:34:52,973 INFO L85 PathProgramCache]: Analyzing trace with hash 568136726, now seen corresponding path program 3 times [2021-11-25 04:34:52,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:34:52,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268177989] [2021-11-25 04:34:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:34:52,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:34:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:34:53,186 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 04:34:53,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:34:53,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268177989] [2021-11-25 04:34:53,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268177989] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:34:53,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036579702] [2021-11-25 04:34:53,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 04:34:53,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:34:53,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:34:53,189 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:34:53,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-25 04:34:53,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-25 04:34:53,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:34:53,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-25 04:34:53,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:34:53,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 04:34:53,491 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 04:34:53,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 04:34:53,647 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 04:34:53,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:34:53,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 04:34:53,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 26 [2021-11-25 04:34:53,942 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 04:34:53,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:34:53,984 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1316 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_1316) |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2021-11-25 04:34:54,009 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1316 (Array Int Int))) (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_1316) |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))) is different from false [2021-11-25 04:34:54,051 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:34:54,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 23 [2021-11-25 04:34:54,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 38 treesize of output 30 [2021-11-25 04:34:54,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 7 [2021-11-25 04:34:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 23 not checked. [2021-11-25 04:34:54,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036579702] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 04:34:54,539 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 04:34:54,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 9] total 27 [2021-11-25 04:34:54,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530453344] [2021-11-25 04:34:54,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 04:34:54,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-25 04:34:54,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-25 04:34:54,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-25 04:34:54,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=506, Unknown=2, NotChecked=94, Total=702 [2021-11-25 04:34:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:54,541 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-25 04:34:54,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.0) internal successors, (189), 27 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) [2021-11-25 04:34:54,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:34:54,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:54,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:54,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:54,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:54,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:34:54,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:34:54,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:35:05,378 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~s~0 4294967296)) (.cse4 (+ c_~s~0 1)) (.cse1 (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|))) (and (not (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0)) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_ULTIMATE.start_main_~#t~1#1.base|)) (= .cse1 2) (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (= |c_thr1Thread3of3ForFork0_~#l~0#1.offset| 0) (not (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 0)) (or (forall ((v_ArrVal_987 (Array Int Int)) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse2 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987)) (.cse3 (mod c_~s~0 4294967296))) (or (not (= (mod (select (select .cse2 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse3)) (not (= (mod (select (select .cse2 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) .cse3))))) (= (mod .cse1 4294967296) .cse0)) (<= .cse1 .cse4) (<= .cse4 .cse1))) is different from false [2021-11-25 04:35:05,442 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~s~0 4294967296)) (.cse4 (+ c_~s~0 1)) (.cse3 (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|))) (and (not (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0)) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_ULTIMATE.start_main_~#t~1#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987)) (.cse2 (mod c_~s~0 4294967296))) (or (not (= (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse2)) (not (= (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) .cse2))))) (= .cse3 2) (not (= |c_ULTIMATE.start_main_~#t~1#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (= |c_thr1Thread3of3ForFork0_~#l~0#1.offset| 0) (not (= (mod .cse3 4294967296) .cse0)) (<= .cse3 .cse4) (<= .cse4 .cse3))) is different from false [2021-11-25 04:35:15,464 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|))) (let ((.cse2 (= .cse3 2)) (.cse4 (+ c_~s~0 1))) (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) .cse2 (= |c_thr1Thread3of3ForFork0_~#l~0#1.offset| 0) (not (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 0)) (or (<= .cse3 .cse4) (< (div .cse3 4294967296) (+ (div c_~s~0 4294967296) 1))) (= c_~s~0 0) (let ((.cse5 (mod c_~s~0 4294967296))) (or (and .cse2 (not (= (mod .cse3 4294967296) .cse5))) (and (not (= 2 .cse5)) (not (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse5))))) (<= .cse4 .cse3)))) is different from false [2021-11-25 04:35:16,254 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_thr1Thread3of3ForFork0_~#l~0#1.base| |c_thr1Thread2of3ForFork0_~#l~0#1.base|)) (forall ((v_ArrVal_987 (Array Int Int)) (|thr1Thread2of3ForFork0_~#l~0#1.offset| Int) (|ULTIMATE.start_main_~#t~1#1.base| Int)) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_987))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= .cse0 (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296)) (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))))))) (= (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 2) (= |c_thr1Thread3of3ForFork0_~#l~0#1.offset| 0) (not (= (select |c_#valid| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) 0))) is different from false [2021-11-25 04:35:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 04:35:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:35:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:35:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:35:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:35:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 04:35:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 04:35:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-25 04:35:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 04:35:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-25 04:35:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-25 04:35:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-25 04:35:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-25 04:35:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-11-25 04:35:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-25 04:35:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-25 04:35:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-25 04:35:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-25 04:35:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-25 04:35:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-25 04:35:16,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-25 04:35:16,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:35:16,990 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 04:35:16,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 04:35:16,990 INFO L85 PathProgramCache]: Analyzing trace with hash 479375768, now seen corresponding path program 3 times [2021-11-25 04:35:16,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-25 04:35:16,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705139238] [2021-11-25 04:35:16,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 04:35:16,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 04:35:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 04:35:17,361 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 04:35:17,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-25 04:35:17,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705139238] [2021-11-25 04:35:17,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705139238] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 04:35:17,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155843446] [2021-11-25 04:35:17,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 04:35:17,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 04:35:17,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 [2021-11-25 04:35:17,364 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 04:35:17,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e7af2f-769f-4e71-a816-daf379d44b38/bin/ugemcutter-4L4vKOHkXZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-25 04:35:17,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 04:35:17,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 04:35:17,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-25 04:35:17,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 04:35:17,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 04:35:17,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2021-11-25 04:35:17,752 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 04:35:17,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-25 04:35:17,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 5 [2021-11-25 04:35:17,843 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 04:35:17,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 04:35:18,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 24 [2021-11-25 04:35:18,452 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 04:35:18,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 57 [2021-11-25 04:35:18,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 16 [2021-11-25 04:35:18,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2021-11-25 04:35:18,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 18 [2021-11-25 04:35:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 04:35:18,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 04:35:18,801 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1371 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_1371)) (.cse0 (mod c_~s~0 4294967296))) (or (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (not (= (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0))))) is different from false [2021-11-25 04:35:18,870 WARN L838 $PredicateComparison]: unable to prove that (or (= (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)) (forall ((v_ArrVal_1371 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_1371)) (.cse0 (mod c_~s~0 4294967296))) (or (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (not (= (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0)))))) is different from false [2021-11-25 04:35:18,887 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1371 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_1371))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (= (mod (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (not (= (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0)))))) is different from false [2021-11-25 04:35:19,007 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1371 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base| (store (select |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset| c_~t~0)))) (let ((.cse1 (store .cse2 |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_1371))) (let ((.cse0 (mod (select (select .cse1 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296))) (or (not (= .cse0 (mod (select (select .cse1 |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296))) (= (mod (select (select .cse2 |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) .cse0) (= .cse0 (mod c_~t~0 4294967296))))))) is different from false [2021-11-25 04:35:19,798 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:35:19,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 276 treesize of output 159 [2021-11-25 04:35:19,867 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 04:35:19,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5775 treesize of output 5321 [2021-11-25 04:35:20,344 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 04:35:20,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4939 treesize of output 4667 [2021-11-25 04:35:20,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4937 treesize of output 4511 [2021-11-25 04:35:20,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5281 treesize of output 5051