./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03b59b42cc833f5b28fc5dc7cc6711355c533ad94229ba44874c6d4d186d9dcb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:28:59,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:59,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:59,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:59,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:59,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:59,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:59,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:59,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:59,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:59,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:59,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:59,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:59,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:59,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:59,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:59,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:59,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:59,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:59,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:59,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:59,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:59,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:59,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:59,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:59,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:59,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:59,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:59,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:59,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:59,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:59,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:59,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:59,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:59,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:59,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:59,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:59,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:59,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:59,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:59,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:59,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:28:59,350 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:59,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:59,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:59,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:59,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:28:59,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:28:59,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:59,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:59,354 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:59,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:59,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:28:59,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:59,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:28:59,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:28:59,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:28:59,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:59,357 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:59,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:28:59,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:59,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:59,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:28:59,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:59,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:59,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:28:59,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:28:59,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:28:59,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:28:59,361 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:28:59,361 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:28:59,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:28:59,362 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_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b59b42cc833f5b28fc5dc7cc6711355c533ad94229ba44874c6d4d186d9dcb [2022-11-20 09:28:59,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:59,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:59,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:59,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:59,702 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:59,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i [2022-11-20 09:29:02,932 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:03,557 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:03,558 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i [2022-11-20 09:29:03,598 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/data/64ed8e045/c4c3bdd28cd0475dbc4f6dfc62d5a7c1/FLAGd27de56a3 [2022-11-20 09:29:03,617 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/data/64ed8e045/c4c3bdd28cd0475dbc4f6dfc62d5a7c1 [2022-11-20 09:29:03,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:03,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:03,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:03,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:03,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:03,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:03" (1/1) ... [2022-11-20 09:29:03,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e725b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:03, skipping insertion in model container [2022-11-20 09:29:03,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:03" (1/1) ... [2022-11-20 09:29:03,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:03,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:04,400 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 09:29:04,409 INFO L158 Benchmark]: Toolchain (without parser) took 782.42ms. Allocated memory is still 178.3MB. Free memory was 125.1MB in the beginning and 129.5MB in the end (delta: -4.4MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2022-11-20 09:29:04,411 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:04,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 778.55ms. Allocated memory is still 178.3MB. Free memory was 124.6MB in the beginning and 129.5MB in the end (delta: -4.9MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2022-11-20 09:29:04,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 778.55ms. Allocated memory is still 178.3MB. Free memory was 124.6MB in the beginning and 129.5MB in the end (delta: -4.9MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03b59b42cc833f5b28fc5dc7cc6711355c533ad94229ba44874c6d4d186d9dcb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:29:06,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:06,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:06,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:06,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:06,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:06,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:06,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:06,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:06,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:06,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:06,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:06,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:06,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:06,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:06,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:06,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:06,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:06,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:06,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:06,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:06,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:06,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:06,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:06,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:06,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:06,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:06,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:06,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:06,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:06,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:06,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:06,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:06,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:06,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:06,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:06,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:06,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:06,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:06,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:06,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:06,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:29:06,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:06,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:06,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:06,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:06,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:06,739 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:06,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:06,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:06,740 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:06,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:06,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:06,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:06,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:06,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:06,742 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:29:06,742 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:29:06,742 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:29:06,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:06,742 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:06,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:06,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:06,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:06,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:06,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:06,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:06,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:06,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:06,744 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:29:06,745 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:29:06,745 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:06,745 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:06,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:06,746 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:29:06,746 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b59b42cc833f5b28fc5dc7cc6711355c533ad94229ba44874c6d4d186d9dcb [2022-11-20 09:29:07,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:07,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:07,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:07,100 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:07,101 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:07,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i [2022-11-20 09:29:10,251 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:10,815 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:10,815 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i [2022-11-20 09:29:10,874 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/data/5589beb61/4e2d1e057fd94468afa7b9151ef93601/FLAG1e5041c06 [2022-11-20 09:29:10,896 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/data/5589beb61/4e2d1e057fd94468afa7b9151ef93601 [2022-11-20 09:29:10,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:10,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:10,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:10,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:10,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:10,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:10" (1/1) ... [2022-11-20 09:29:10,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6884bc2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:10, skipping insertion in model container [2022-11-20 09:29:10,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:10" (1/1) ... [2022-11-20 09:29:10,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:11,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:12,532 WARN L237 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_bd8589a0-9115-4051-8fa2-a80917c3c7ca/sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i[202861,202874] [2022-11-20 09:29:12,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:12,595 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:29:12,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:12,948 WARN L237 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_bd8589a0-9115-4051-8fa2-a80917c3c7ca/sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i[202861,202874] [2022-11-20 09:29:12,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:12,980 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:13,291 WARN L237 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_bd8589a0-9115-4051-8fa2-a80917c3c7ca/sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i[202861,202874] [2022-11-20 09:29:13,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:13,437 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:13,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13 WrapperNode [2022-11-20 09:29:13,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:13,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:13,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:13,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:13,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,661 INFO L138 Inliner]: procedures = 170, calls = 812, calls flagged for inlining = 80, calls inlined = 79, statements flattened = 2683 [2022-11-20 09:29:13,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:13,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:13,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:13,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:13,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,859 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:13,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:13,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:13,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:13,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (1/1) ... [2022-11-20 09:29:13,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:13,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:13,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:13,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:29:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-20 09:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 09:29:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 09:29:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-20 09:29:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-20 09:29:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-20 09:29:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-20 09:29:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 09:29:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 09:29:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 09:29:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 09:29:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:29:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:29:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 09:29:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 09:29:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2022-11-20 09:29:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2022-11-20 09:29:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-20 09:29:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-20 09:29:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:29:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:29:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2022-11-20 09:29:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2022-11-20 09:29:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:29:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:29:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:29:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:29:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-20 09:29:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-20 09:29:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-20 09:29:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-20 09:29:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 09:29:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 09:29:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:29:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:29:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 09:29:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 09:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 09:29:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 09:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2022-11-20 09:29:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2022-11-20 09:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2022-11-20 09:29:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2022-11-20 09:29:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:29:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 09:29:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 09:29:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2022-11-20 09:29:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2022-11-20 09:29:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:29:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:29:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 09:29:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:29:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:29:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:29:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 09:29:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 09:29:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:29:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 09:29:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 09:29:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 09:29:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 09:29:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2022-11-20 09:29:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2022-11-20 09:29:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 09:29:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 09:29:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2022-11-20 09:29:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2022-11-20 09:29:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:29:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:29:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:29:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:29:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:29:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-20 09:29:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-20 09:29:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:29:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 09:29:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 09:29:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2022-11-20 09:29:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2022-11-20 09:29:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 09:29:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 09:29:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:29:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:29:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 09:29:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 09:29:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 09:29:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 09:29:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 09:29:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 09:29:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 09:29:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 09:29:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 09:29:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 09:29:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 09:29:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 09:29:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:29:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-20 09:29:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-20 09:29:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-20 09:29:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-20 09:29:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-20 09:29:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-20 09:29:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-20 09:29:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-20 09:29:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2022-11-20 09:29:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2022-11-20 09:29:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-20 09:29:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-20 09:29:14,592 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:14,594 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:35,680 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:29:35,703 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:29:35,704 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:29:35,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:35 BoogieIcfgContainer [2022-11-20 09:29:35,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:29:35,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:29:35,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:29:35,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:29:35,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:29:10" (1/3) ... [2022-11-20 09:29:35,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269120f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:35, skipping insertion in model container [2022-11-20 09:29:35,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:13" (2/3) ... [2022-11-20 09:29:35,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269120f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:35, skipping insertion in model container [2022-11-20 09:29:35,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:35" (3/3) ... [2022-11-20 09:29:35,728 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i [2022-11-20 09:29:35,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:29:35,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:29:35,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:29:35,864 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22d8ef9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:29:35,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:29:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 961 states, 709 states have (on average 1.4287729196050776) internal successors, (1013), 736 states have internal predecessors, (1013), 207 states have call successors, (207), 43 states have call predecessors, (207), 43 states have return successors, (207), 205 states have call predecessors, (207), 207 states have call successors, (207) [2022-11-20 09:29:35,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 09:29:35,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:35,912 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:35,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash -409076956, now seen corresponding path program 1 times [2022-11-20 09:29:35,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:35,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327465325] [2022-11-20 09:29:35,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:35,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:35,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:35,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:35,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:29:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:36,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:36,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:36,748 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:36,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:36,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:36,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327465325] [2022-11-20 09:29:36,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327465325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:36,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:36,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:36,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640495715] [2022-11-20 09:29:36,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:36,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:36,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:36,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:36,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:36,823 INFO L87 Difference]: Start difference. First operand has 961 states, 709 states have (on average 1.4287729196050776) internal successors, (1013), 736 states have internal predecessors, (1013), 207 states have call successors, (207), 43 states have call predecessors, (207), 43 states have return successors, (207), 205 states have call predecessors, (207), 207 states have call successors, (207) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:29:37,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:37,092 INFO L93 Difference]: Finished difference Result 1918 states and 2864 transitions. [2022-11-20 09:29:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:37,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2022-11-20 09:29:37,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:37,119 INFO L225 Difference]: With dead ends: 1918 [2022-11-20 09:29:37,120 INFO L226 Difference]: Without dead ends: 922 [2022-11-20 09:29:37,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:37,137 INFO L413 NwaCegarLoop]: 1411 mSDtfsCounter, 1405 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:37,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 1411 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:29:37,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-11-20 09:29:37,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2022-11-20 09:29:37,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 679 states have (on average 1.4182621502209132) internal successors, (963), 703 states have internal predecessors, (963), 199 states have call successors, (199), 43 states have call predecessors, (199), 43 states have return successors, (199), 197 states have call predecessors, (199), 199 states have call successors, (199) [2022-11-20 09:29:37,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1361 transitions. [2022-11-20 09:29:37,353 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1361 transitions. Word has length 59 [2022-11-20 09:29:37,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:37,355 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1361 transitions. [2022-11-20 09:29:37,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:29:37,356 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1361 transitions. [2022-11-20 09:29:37,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 09:29:37,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:37,366 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:37,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:37,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:37,584 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:37,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:37,584 INFO L85 PathProgramCache]: Analyzing trace with hash 14569766, now seen corresponding path program 1 times [2022-11-20 09:29:37,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:37,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44954659] [2022-11-20 09:29:37,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:37,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:37,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:37,589 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:37,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:29:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:38,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:29:38,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:38,209 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 09:29:38,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:38,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:38,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44954659] [2022-11-20 09:29:38,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44954659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:38,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:38,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:29:38,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299738083] [2022-11-20 09:29:38,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:38,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:29:38,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:38,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:29:38,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:38,214 INFO L87 Difference]: Start difference. First operand 922 states and 1361 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:29:38,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:38,395 INFO L93 Difference]: Finished difference Result 1827 states and 2699 transitions. [2022-11-20 09:29:38,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:29:38,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2022-11-20 09:29:38,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:38,402 INFO L225 Difference]: With dead ends: 1827 [2022-11-20 09:29:38,403 INFO L226 Difference]: Without dead ends: 922 [2022-11-20 09:29:38,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:38,407 INFO L413 NwaCegarLoop]: 1360 mSDtfsCounter, 1 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:38,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4075 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:29:38,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-11-20 09:29:38,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2022-11-20 09:29:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 679 states have (on average 1.4167893961708395) internal successors, (962), 703 states have internal predecessors, (962), 199 states have call successors, (199), 43 states have call predecessors, (199), 43 states have return successors, (199), 197 states have call predecessors, (199), 199 states have call successors, (199) [2022-11-20 09:29:38,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1360 transitions. [2022-11-20 09:29:38,505 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1360 transitions. Word has length 59 [2022-11-20 09:29:38,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:38,506 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1360 transitions. [2022-11-20 09:29:38,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:29:38,507 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1360 transitions. [2022-11-20 09:29:38,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-20 09:29:38,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:38,512 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:38,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:38,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:38,730 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:38,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:38,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1156177197, now seen corresponding path program 1 times [2022-11-20 09:29:38,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:38,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880879145] [2022-11-20 09:29:38,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:38,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:38,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:38,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:38,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:29:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:39,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 09:29:39,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:39,714 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 09:29:39,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:39,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:39,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880879145] [2022-11-20 09:29:39,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880879145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:39,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:39,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 09:29:39,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477351940] [2022-11-20 09:29:39,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:39,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 09:29:39,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:39,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 09:29:39,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:29:39,717 INFO L87 Difference]: Start difference. First operand 922 states and 1360 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:29:40,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:40,831 INFO L93 Difference]: Finished difference Result 1866 states and 2747 transitions. [2022-11-20 09:29:40,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 09:29:40,832 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2022-11-20 09:29:40,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:40,841 INFO L225 Difference]: With dead ends: 1866 [2022-11-20 09:29:40,841 INFO L226 Difference]: Without dead ends: 950 [2022-11-20 09:29:40,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-11-20 09:29:40,849 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 42 mSDsluCounter, 9484 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 10846 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:40,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 10846 Invalid, 66 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 09:29:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-11-20 09:29:40,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 944. [2022-11-20 09:29:40,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 694 states have (on average 1.4092219020172911) internal successors, (978), 719 states have internal predecessors, (978), 201 states have call successors, (201), 47 states have call predecessors, (201), 48 states have return successors, (202), 199 states have call predecessors, (202), 201 states have call successors, (202) [2022-11-20 09:29:40,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1381 transitions. [2022-11-20 09:29:40,913 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1381 transitions. Word has length 62 [2022-11-20 09:29:40,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:40,915 INFO L495 AbstractCegarLoop]: Abstraction has 944 states and 1381 transitions. [2022-11-20 09:29:40,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:29:40,915 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1381 transitions. [2022-11-20 09:29:40,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 09:29:40,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:40,918 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:40,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:41,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:41,137 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:41,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:41,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1594030711, now seen corresponding path program 1 times [2022-11-20 09:29:41,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:41,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364654189] [2022-11-20 09:29:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:41,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:41,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:41,140 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:41,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 09:29:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:41,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:29:41,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:41,685 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 09:29:41,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:41,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:41,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364654189] [2022-11-20 09:29:41,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364654189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:41,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:41,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:29:41,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479167149] [2022-11-20 09:29:41,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:41,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:29:41,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:41,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:29:41,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:41,687 INFO L87 Difference]: Start difference. First operand 944 states and 1381 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 09:29:42,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:42,393 INFO L93 Difference]: Finished difference Result 1455 states and 2196 transitions. [2022-11-20 09:29:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:29:42,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 65 [2022-11-20 09:29:42,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:42,402 INFO L225 Difference]: With dead ends: 1455 [2022-11-20 09:29:42,403 INFO L226 Difference]: Without dead ends: 1453 [2022-11-20 09:29:42,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:42,405 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 915 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 5328 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:42,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 5328 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 09:29:42,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-11-20 09:29:42,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 946. [2022-11-20 09:29:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 696 states have (on average 1.4080459770114941) internal successors, (980), 721 states have internal predecessors, (980), 201 states have call successors, (201), 47 states have call predecessors, (201), 48 states have return successors, (202), 199 states have call predecessors, (202), 201 states have call successors, (202) [2022-11-20 09:29:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1383 transitions. [2022-11-20 09:29:42,518 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1383 transitions. Word has length 65 [2022-11-20 09:29:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:42,519 INFO L495 AbstractCegarLoop]: Abstraction has 946 states and 1383 transitions. [2022-11-20 09:29:42,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 09:29:42,520 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1383 transitions. [2022-11-20 09:29:42,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 09:29:42,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:42,521 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:42,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:42,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:42,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:42,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:42,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2133834646, now seen corresponding path program 1 times [2022-11-20 09:29:42,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:42,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384350584] [2022-11-20 09:29:42,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:42,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:42,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:42,730 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:42,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 09:29:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:43,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:29:43,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:43,246 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 09:29:43,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:43,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:43,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384350584] [2022-11-20 09:29:43,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384350584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:43,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:43,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:29:43,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5209231] [2022-11-20 09:29:43,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:43,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:29:43,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:43,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:29:43,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:43,248 INFO L87 Difference]: Start difference. First operand 946 states and 1383 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 09:29:44,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:44,157 INFO L93 Difference]: Finished difference Result 1458 states and 2199 transitions. [2022-11-20 09:29:44,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:29:44,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 66 [2022-11-20 09:29:44,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:44,166 INFO L225 Difference]: With dead ends: 1458 [2022-11-20 09:29:44,166 INFO L226 Difference]: Without dead ends: 1456 [2022-11-20 09:29:44,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:44,168 INFO L413 NwaCegarLoop]: 2169 mSDtfsCounter, 915 mSDsluCounter, 3167 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 5336 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:44,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 5336 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 09:29:44,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2022-11-20 09:29:44,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 946. [2022-11-20 09:29:44,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 696 states have (on average 1.4080459770114941) internal successors, (980), 721 states have internal predecessors, (980), 201 states have call successors, (201), 47 states have call predecessors, (201), 48 states have return successors, (202), 199 states have call predecessors, (202), 201 states have call successors, (202) [2022-11-20 09:29:44,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1383 transitions. [2022-11-20 09:29:44,305 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1383 transitions. Word has length 66 [2022-11-20 09:29:44,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:44,305 INFO L495 AbstractCegarLoop]: Abstraction has 946 states and 1383 transitions. [2022-11-20 09:29:44,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 09:29:44,306 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1383 transitions. [2022-11-20 09:29:44,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 09:29:44,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:44,309 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:44,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:44,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:44,527 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:44,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:44,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2126255121, now seen corresponding path program 1 times [2022-11-20 09:29:44,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:44,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140784926] [2022-11-20 09:29:44,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:44,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:44,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:44,530 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:44,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 09:29:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:44,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:29:44,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:45,351 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 09:29:45,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:45,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:45,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140784926] [2022-11-20 09:29:45,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140784926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:45,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:45,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:45,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023855139] [2022-11-20 09:29:45,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:45,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:29:45,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:45,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:29:45,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:45,354 INFO L87 Difference]: Start difference. First operand 946 states and 1383 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 09:29:49,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:49,411 INFO L93 Difference]: Finished difference Result 2362 states and 3536 transitions. [2022-11-20 09:29:49,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:29:49,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2022-11-20 09:29:49,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:49,421 INFO L225 Difference]: With dead ends: 2362 [2022-11-20 09:29:49,421 INFO L226 Difference]: Without dead ends: 1457 [2022-11-20 09:29:49,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:49,426 INFO L413 NwaCegarLoop]: 1845 mSDtfsCounter, 1835 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:49,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 2795 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-20 09:29:49,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2022-11-20 09:29:49,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 947. [2022-11-20 09:29:49,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 697 states have (on average 1.4074605451936872) internal successors, (981), 722 states have internal predecessors, (981), 201 states have call successors, (201), 47 states have call predecessors, (201), 48 states have return successors, (202), 199 states have call predecessors, (202), 201 states have call successors, (202) [2022-11-20 09:29:49,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1384 transitions. [2022-11-20 09:29:49,566 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1384 transitions. Word has length 75 [2022-11-20 09:29:49,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:49,567 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1384 transitions. [2022-11-20 09:29:49,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 09:29:49,567 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1384 transitions. [2022-11-20 09:29:49,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 09:29:49,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:49,570 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:49,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:49,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:49,787 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:49,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:49,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1326022320, now seen corresponding path program 1 times [2022-11-20 09:29:49,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:49,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106508284] [2022-11-20 09:29:49,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:49,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:49,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:49,790 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:49,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 09:29:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:50,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 09:29:50,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 09:29:50,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:50,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:50,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106508284] [2022-11-20 09:29:50,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106508284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:50,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:50,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:29:50,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949351643] [2022-11-20 09:29:50,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:50,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:29:50,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:50,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:29:50,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:50,386 INFO L87 Difference]: Start difference. First operand 947 states and 1384 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 09:29:51,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:51,568 INFO L93 Difference]: Finished difference Result 1464 states and 2207 transitions. [2022-11-20 09:29:51,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:29:51,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2022-11-20 09:29:51,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:51,579 INFO L225 Difference]: With dead ends: 1464 [2022-11-20 09:29:51,579 INFO L226 Difference]: Without dead ends: 1462 [2022-11-20 09:29:51,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:29:51,582 INFO L413 NwaCegarLoop]: 2169 mSDtfsCounter, 1299 mSDsluCounter, 4827 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 6996 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:51,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 6996 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 09:29:51,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-11-20 09:29:51,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 949. [2022-11-20 09:29:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 698 states have (on average 1.4068767908309456) internal successors, (982), 723 states have internal predecessors, (982), 202 states have call successors, (202), 47 states have call predecessors, (202), 48 states have return successors, (203), 200 states have call predecessors, (203), 202 states have call successors, (203) [2022-11-20 09:29:51,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1387 transitions. [2022-11-20 09:29:51,785 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1387 transitions. Word has length 77 [2022-11-20 09:29:51,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:51,786 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1387 transitions. [2022-11-20 09:29:51,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 09:29:51,786 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1387 transitions. [2022-11-20 09:29:51,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-20 09:29:51,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:51,790 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:51,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:52,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:52,007 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:52,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:52,008 INFO L85 PathProgramCache]: Analyzing trace with hash 523121960, now seen corresponding path program 1 times [2022-11-20 09:29:52,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:52,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37665998] [2022-11-20 09:29:52,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:52,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:52,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:52,010 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:52,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 09:29:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:52,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:52,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 09:29:52,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:52,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:52,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37665998] [2022-11-20 09:29:52,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37665998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:52,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:52,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:52,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515049394] [2022-11-20 09:29:52,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:52,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:52,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:52,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:52,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:52,966 INFO L87 Difference]: Start difference. First operand 949 states and 1387 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 09:29:54,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:54,135 INFO L93 Difference]: Finished difference Result 1857 states and 2729 transitions. [2022-11-20 09:29:54,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:54,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2022-11-20 09:29:54,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:54,155 INFO L225 Difference]: With dead ends: 1857 [2022-11-20 09:29:54,155 INFO L226 Difference]: Without dead ends: 949 [2022-11-20 09:29:54,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:54,159 INFO L413 NwaCegarLoop]: 1364 mSDtfsCounter, 1305 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:54,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 1396 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 09:29:54,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-11-20 09:29:54,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2022-11-20 09:29:54,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 698 states have (on average 1.4054441260744985) internal successors, (981), 723 states have internal predecessors, (981), 202 states have call successors, (202), 47 states have call predecessors, (202), 48 states have return successors, (203), 200 states have call predecessors, (203), 202 states have call successors, (203) [2022-11-20 09:29:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1386 transitions. [2022-11-20 09:29:54,348 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1386 transitions. Word has length 85 [2022-11-20 09:29:54,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:54,349 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1386 transitions. [2022-11-20 09:29:54,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 09:29:54,349 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1386 transitions. [2022-11-20 09:29:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-20 09:29:54,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:54,353 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:54,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:54,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:54,568 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:54,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:54,569 INFO L85 PathProgramCache]: Analyzing trace with hash 596960674, now seen corresponding path program 1 times [2022-11-20 09:29:54,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:54,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440875145] [2022-11-20 09:29:54,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:54,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:54,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:54,571 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:54,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 09:29:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:55,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:29:55,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 09:29:55,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:55,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:55,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440875145] [2022-11-20 09:29:55,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440875145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:55,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:55,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:55,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704237336] [2022-11-20 09:29:55,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:55,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:29:55,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:55,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:29:55,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:55,392 INFO L87 Difference]: Start difference. First operand 949 states and 1386 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 09:30:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:00,933 INFO L93 Difference]: Finished difference Result 2370 states and 3544 transitions. [2022-11-20 09:30:00,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:30:00,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-11-20 09:30:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:00,947 INFO L225 Difference]: With dead ends: 2370 [2022-11-20 09:30:00,947 INFO L226 Difference]: Without dead ends: 1462 [2022-11-20 09:30:00,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:00,952 INFO L413 NwaCegarLoop]: 1913 mSDtfsCounter, 2042 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 2858 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:00,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2180 Valid, 2858 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-20 09:30:00,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-11-20 09:30:01,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 953. [2022-11-20 09:30:01,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 702 states have (on average 1.4045584045584045) internal successors, (986), 727 states have internal predecessors, (986), 202 states have call successors, (202), 47 states have call predecessors, (202), 48 states have return successors, (203), 200 states have call predecessors, (203), 202 states have call successors, (203) [2022-11-20 09:30:01,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1391 transitions. [2022-11-20 09:30:01,132 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1391 transitions. Word has length 87 [2022-11-20 09:30:01,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:01,132 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1391 transitions. [2022-11-20 09:30:01,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 09:30:01,133 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1391 transitions. [2022-11-20 09:30:01,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-20 09:30:01,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:01,137 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:01,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:01,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:01,355 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:01,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:01,360 INFO L85 PathProgramCache]: Analyzing trace with hash -272015955, now seen corresponding path program 1 times [2022-11-20 09:30:01,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:01,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201490631] [2022-11-20 09:30:01,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:01,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:01,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:01,363 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:01,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 09:30:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:01,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 09:30:01,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:02,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-20 09:30:02,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9 [2022-11-20 09:30:02,658 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 09:30:02,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:02,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:02,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201490631] [2022-11-20 09:30:02,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201490631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:02,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:02,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 09:30:02,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748563830] [2022-11-20 09:30:02,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:02,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 09:30:02,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:02,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 09:30:02,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:30:02,661 INFO L87 Difference]: Start difference. First operand 953 states and 1391 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 09:30:04,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:06,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:08,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:15,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:17,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:19,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:21,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:33,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:35,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:37,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:45,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:51,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:53,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:30:54,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:10,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:11,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:13,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:14,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:16,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:17,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:19,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:23,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:26,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:28,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:30,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:34,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:36,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:38,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:40,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:41,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:44,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:31:45,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:09,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:16,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:17,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:18,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:21,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:25,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:26,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:28,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:38,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:42,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:44,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:45,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:46,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:49,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:51,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:52,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:56,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:57,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:00,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:02,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:07,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:09,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:11,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:17,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:19,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:21,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:23,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:27,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:29,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:30,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:35,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:37,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:38,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:42,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:44,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:46,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:48,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:50,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:52,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:54,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:56,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:58,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:00,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:01,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:01,893 INFO L93 Difference]: Finished difference Result 6176 states and 9631 transitions. [2022-11-20 09:34:01,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 09:34:01,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 90 [2022-11-20 09:34:01,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:01,928 INFO L225 Difference]: With dead ends: 6176 [2022-11-20 09:34:01,928 INFO L226 Difference]: Without dead ends: 5264 [2022-11-20 09:34:01,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-11-20 09:34:01,935 INFO L413 NwaCegarLoop]: 3219 mSDtfsCounter, 5345 mSDsluCounter, 21030 mSDsCounter, 0 mSdLazyCounter, 5312 mSolverCounterSat, 1974 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 228.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5692 SdHoareTripleChecker+Valid, 24249 SdHoareTripleChecker+Invalid, 7316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1974 IncrementalHoareTripleChecker+Valid, 5312 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 236.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:01,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5692 Valid, 24249 Invalid, 7316 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1974 Valid, 5312 Invalid, 30 Unknown, 0 Unchecked, 236.2s Time] [2022-11-20 09:34:01,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5264 states. [2022-11-20 09:34:02,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5264 to 1591. [2022-11-20 09:34:02,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1178 states have (on average 1.4185059422750423) internal successors, (1671), 1217 states have internal predecessors, (1671), 327 states have call successors, (327), 84 states have call predecessors, (327), 85 states have return successors, (338), 317 states have call predecessors, (338), 327 states have call successors, (338) [2022-11-20 09:34:02,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 2336 transitions. [2022-11-20 09:34:02,422 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 2336 transitions. Word has length 90 [2022-11-20 09:34:02,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:02,422 INFO L495 AbstractCegarLoop]: Abstraction has 1591 states and 2336 transitions. [2022-11-20 09:34:02,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 09:34:02,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 2336 transitions. [2022-11-20 09:34:02,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 09:34:02,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:02,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:02,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 09:34:02,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:34:02,647 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:34:02,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:02,648 INFO L85 PathProgramCache]: Analyzing trace with hash -875753156, now seen corresponding path program 1 times [2022-11-20 09:34:02,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:02,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807028666] [2022-11-20 09:34:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:02,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:34:02,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:02,650 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:34:02,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 09:34:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:03,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 09:34:03,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:03,343 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 09:34:03,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:34:03,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:03,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807028666] [2022-11-20 09:34:03,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807028666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:03,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:03,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:34:03,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503202254] [2022-11-20 09:34:03,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:03,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:34:03,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:03,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:34:03,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:34:03,345 INFO L87 Difference]: Start difference. First operand 1591 states and 2336 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 09:34:05,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:05,101 INFO L93 Difference]: Finished difference Result 2828 states and 4316 transitions. [2022-11-20 09:34:05,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:34:05,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2022-11-20 09:34:05,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:05,118 INFO L225 Difference]: With dead ends: 2828 [2022-11-20 09:34:05,119 INFO L226 Difference]: Without dead ends: 2826 [2022-11-20 09:34:05,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:34:05,121 INFO L413 NwaCegarLoop]: 2285 mSDtfsCounter, 1789 mSDsluCounter, 5556 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 7841 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:05,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 7841 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 09:34:05,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2022-11-20 09:34:05,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 1587. [2022-11-20 09:34:05,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1175 states have (on average 1.4187234042553192) internal successors, (1667), 1213 states have internal predecessors, (1667), 326 states have call successors, (326), 84 states have call predecessors, (326), 85 states have return successors, (337), 316 states have call predecessors, (337), 326 states have call successors, (337) [2022-11-20 09:34:05,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2330 transitions. [2022-11-20 09:34:05,757 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2330 transitions. Word has length 99 [2022-11-20 09:34:05,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:05,757 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2330 transitions. [2022-11-20 09:34:05,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 09:34:05,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2330 transitions. [2022-11-20 09:34:05,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-20 09:34:05,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:05,766 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:05,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 09:34:05,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:34:05,983 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:34:05,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:05,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1938229159, now seen corresponding path program 1 times [2022-11-20 09:34:05,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:05,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313570203] [2022-11-20 09:34:05,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:05,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:34:05,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:05,987 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:34:06,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 09:34:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:06,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 09:34:06,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:06,830 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 09:34:06,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:34:06,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:06,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313570203] [2022-11-20 09:34:06,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313570203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:06,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:06,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:34:06,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136216324] [2022-11-20 09:34:06,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:06,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:34:06,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:06,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:34:06,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:34:06,834 INFO L87 Difference]: Start difference. First operand 1587 states and 2330 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:34:08,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:10,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:10,156 INFO L93 Difference]: Finished difference Result 4499 states and 6831 transitions. [2022-11-20 09:34:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:34:10,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2022-11-20 09:34:10,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:10,172 INFO L225 Difference]: With dead ends: 4499 [2022-11-20 09:34:10,173 INFO L226 Difference]: Without dead ends: 2953 [2022-11-20 09:34:10,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:34:10,179 INFO L413 NwaCegarLoop]: 2094 mSDtfsCounter, 1176 mSDsluCounter, 3427 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 5521 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:10,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 5521 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 09:34:10,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2022-11-20 09:34:10,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1589. [2022-11-20 09:34:10,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1177 states have (on average 1.4171622769753611) internal successors, (1668), 1215 states have internal predecessors, (1668), 326 states have call successors, (326), 84 states have call predecessors, (326), 85 states have return successors, (337), 316 states have call predecessors, (337), 326 states have call successors, (337) [2022-11-20 09:34:10,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2331 transitions. [2022-11-20 09:34:10,741 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2331 transitions. Word has length 121 [2022-11-20 09:34:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:10,744 INFO L495 AbstractCegarLoop]: Abstraction has 1589 states and 2331 transitions. [2022-11-20 09:34:10,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 09:34:10,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2331 transitions. [2022-11-20 09:34:10,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 09:34:10,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:10,754 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:10,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 09:34:10,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:34:10,977 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:34:10,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:10,978 INFO L85 PathProgramCache]: Analyzing trace with hash -575832018, now seen corresponding path program 1 times [2022-11-20 09:34:10,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:10,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376689040] [2022-11-20 09:34:10,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:10,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:34:10,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:10,981 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:34:11,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 09:34:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:11,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 09:34:11,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:12,086 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 09:34:12,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:34:12,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:12,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376689040] [2022-11-20 09:34:12,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376689040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:12,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:12,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:34:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949517674] [2022-11-20 09:34:12,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:12,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:34:12,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:12,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:34:12,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:34:12,090 INFO L87 Difference]: Start difference. First operand 1589 states and 2331 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 09:34:15,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:15,231 INFO L93 Difference]: Finished difference Result 4687 states and 7111 transitions. [2022-11-20 09:34:15,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 09:34:15,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2022-11-20 09:34:15,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:15,249 INFO L225 Difference]: With dead ends: 4687 [2022-11-20 09:34:15,250 INFO L226 Difference]: Without dead ends: 3139 [2022-11-20 09:34:15,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:34:15,255 INFO L413 NwaCegarLoop]: 2273 mSDtfsCounter, 1362 mSDsluCounter, 8165 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 10438 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:15,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 10438 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 09:34:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2022-11-20 09:34:15,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 1599. [2022-11-20 09:34:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1599 states, 1185 states have (on average 1.4143459915611813) internal successors, (1676), 1223 states have internal predecessors, (1676), 326 states have call successors, (326), 84 states have call predecessors, (326), 87 states have return successors, (343), 318 states have call predecessors, (343), 326 states have call successors, (343) [2022-11-20 09:34:15,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 2345 transitions. [2022-11-20 09:34:15,825 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 2345 transitions. Word has length 138 [2022-11-20 09:34:15,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:15,826 INFO L495 AbstractCegarLoop]: Abstraction has 1599 states and 2345 transitions. [2022-11-20 09:34:15,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 09:34:15,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 2345 transitions. [2022-11-20 09:34:15,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-20 09:34:15,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:15,836 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:15,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 09:34:16,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:34:16,051 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:34:16,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:16,051 INFO L85 PathProgramCache]: Analyzing trace with hash -285051848, now seen corresponding path program 2 times [2022-11-20 09:34:16,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:16,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376089814] [2022-11-20 09:34:16,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:34:16,053 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:34:16,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:16,055 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:34:16,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 09:34:16,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 09:34:16,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:34:16,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:34:16,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-20 09:34:16,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:34:16,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:16,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376089814] [2022-11-20 09:34:16,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376089814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:16,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:16,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:16,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248893989] [2022-11-20 09:34:16,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:16,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:34:16,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:16,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:34:16,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:16,834 INFO L87 Difference]: Start difference. First operand 1599 states and 2345 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 09:34:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:17,369 INFO L93 Difference]: Finished difference Result 3159 states and 4663 transitions. [2022-11-20 09:34:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:34:17,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 141 [2022-11-20 09:34:17,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:17,380 INFO L225 Difference]: With dead ends: 3159 [2022-11-20 09:34:17,380 INFO L226 Difference]: Without dead ends: 1601 [2022-11-20 09:34:17,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:17,386 INFO L413 NwaCegarLoop]: 1354 mSDtfsCounter, 0 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:17,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2701 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:34:17,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-11-20 09:34:17,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1599. [2022-11-20 09:34:17,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1599 states, 1185 states have (on average 1.409282700421941) internal successors, (1670), 1223 states have internal predecessors, (1670), 326 states have call successors, (326), 84 states have call predecessors, (326), 87 states have return successors, (343), 318 states have call predecessors, (343), 326 states have call successors, (343) [2022-11-20 09:34:17,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 2339 transitions. [2022-11-20 09:34:17,876 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 2339 transitions. Word has length 141 [2022-11-20 09:34:17,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:17,876 INFO L495 AbstractCegarLoop]: Abstraction has 1599 states and 2339 transitions. [2022-11-20 09:34:17,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 09:34:17,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 2339 transitions. [2022-11-20 09:34:17,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 09:34:17,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:17,886 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:17,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 09:34:18,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:34:18,109 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:34:18,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:18,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1782033489, now seen corresponding path program 1 times [2022-11-20 09:34:18,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:18,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313021104] [2022-11-20 09:34:18,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:18,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:34:18,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:18,112 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:34:18,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 09:34:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:25,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 147 conjunts are in the unsatisfiable core [2022-11-20 09:34:25,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:25,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-20 09:34:27,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:27,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:27,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:28,084 INFO L321 Elim1Store]: treesize reduction 127, result has 20.6 percent of original size [2022-11-20 09:34:28,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 28 treesize of output 48 [2022-11-20 09:34:29,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:29,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 09:34:30,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:30,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:30,315 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-20 09:34:30,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2022-11-20 09:34:31,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 09:34:31,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 09:34:31,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 09:34:31,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 29 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 81 [2022-11-20 09:34:34,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:34,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:34,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:34,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:34,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:34,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:34,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:34,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:34,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 37 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 100 [2022-11-20 09:34:34,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 09:34:34,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 09:34:35,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-11-20 09:34:35,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2022-11-20 09:34:35,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-20 09:34:37,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 79 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 138 [2022-11-20 09:34:37,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 46 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 94 [2022-11-20 09:34:37,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 46 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 96 [2022-11-20 09:34:39,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 79 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 118 [2022-11-20 09:34:39,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 46 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 80 [2022-11-20 09:34:39,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 46 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 80 [2022-11-20 09:34:39,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-20 09:34:39,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-11-20 09:34:39,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-11-20 09:34:40,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:40,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:40,789 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 09:34:40,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 36 [2022-11-20 09:34:40,865 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 09:34:40,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-20 09:34:40,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:40,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:40,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-11-20 09:34:40,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:40,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:40,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2022-11-20 09:34:41,037 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 09:34:41,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2022-11-20 09:34:41,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 09:34:41,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:41,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:41,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:41,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:41,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 64 [2022-11-20 09:34:41,202 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 09:34:41,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 43 [2022-11-20 09:34:45,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,093 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 09:34:45,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 57 [2022-11-20 09:34:45,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 69 [2022-11-20 09:34:45,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:45,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 85 [2022-11-20 09:34:50,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,071 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 09:34:50,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 57 [2022-11-20 09:34:50,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 85 [2022-11-20 09:34:50,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:34:50,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 21 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 69 [2022-11-20 09:34:58,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 508 treesize of output 328 [2022-11-20 09:34:59,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:35:00,866 INFO L321 Elim1Store]: treesize reduction 1228, result has 7.0 percent of original size [2022-11-20 09:35:00,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 7 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 184 case distinctions, treesize of input 427 treesize of output 279 [2022-11-20 09:35:00,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 263 treesize of output 243 [2022-11-20 09:35:00,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:35:00,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 121 [2022-11-20 09:35:00,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 82 [2022-11-20 09:35:01,670 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 09:35:01,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:35:02,173 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1084 (Array (_ BitVec 64) (_ BitVec 8))) (v_ArrVal_1083 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1085 (Array (_ BitVec 64) (_ BitVec 64)))) (bvsle ((_ extract 31 0) (let ((.cse2 (bvadd |c_ULTIMATE.start_slip_open_~sl~12#1.offset| (_ bv12 64)))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1084) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1083) |c_ULTIMATE.start_slip_open_~sl~12#1.base|) .cse2))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1085) |c_ULTIMATE.start_slip_open_~sl~12#1.base|) .cse2))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd .cse1 (_ bv119 64))) (select .cse0 (bvadd (_ bv118 64) .cse1))) (select .cse0 (bvadd .cse1 (_ bv117 64)))) (select .cse0 (bvadd (_ bv116 64) .cse1))) (select .cse0 (bvadd .cse1 (_ bv115 64)))) (select .cse0 (bvadd .cse1 (_ bv114 64)))) (select .cse0 (bvadd (_ bv113 64) .cse1))) (select .cse0 (bvadd (_ bv112 64) .cse1)))))) (_ bv0 32))) is different from false [2022-11-20 09:35:02,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:35:02,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313021104] [2022-11-20 09:35:02,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313021104] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:35:02,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [225148473] [2022-11-20 09:35:02,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:35:02,215 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 09:35:02,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 09:35:02,217 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 09:35:02,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8589a0-9115-4051-8fa2-a80917c3c7ca/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process