./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 --- 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 10:32:16,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:32:16,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:32:16,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:32:16,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:32:16,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:32:16,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:32:16,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:32:16,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:32:16,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:32:16,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:32:16,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:32:16,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:32:16,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:32:16,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:32:16,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:32:16,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:32:16,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:32:16,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:32:16,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:32:16,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:32:16,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:32:16,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:32:16,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:32:16,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:32:16,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:32:16,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:32:16,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:32:16,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:32:16,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:32:16,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:32:16,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:32:16,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:32:16,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:32:16,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:32:16,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:32:16,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:32:16,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:32:16,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:32:16,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:32:16,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:32:16,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:32:16,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:32:16,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:32:16,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:32:16,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:32:16,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:32:16,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:32:16,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:32:16,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:32:16,914 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:32:16,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:32:16,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:32:16,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:32:16,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:32:16,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:32:16,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:32:16,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:32:16,916 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:32:16,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:32:16,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:32:16,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:32:16,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:32:16,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:16,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:32:16,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:32:16,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:32:16,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:32:16,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:32:16,918 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:32:16,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:32:16,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:32:16,919 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_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2022-11-20 10:32:17,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:32:17,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:32:17,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:32:17,303 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:32:17,303 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:32:17,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-11-20 10:32:20,321 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:32:21,068 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:32:21,068 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-11-20 10:32:21,135 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/data/729be020b/7cda4fe54cdf46e3b61d9136b540935a/FLAG857599517 [2022-11-20 10:32:21,156 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/data/729be020b/7cda4fe54cdf46e3b61d9136b540935a [2022-11-20 10:32:21,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:32:21,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:32:21,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:21,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:32:21,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:32:21,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:21" (1/1) ... [2022-11-20 10:32:21,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7b5e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:21, skipping insertion in model container [2022-11-20 10:32:21,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:21" (1/1) ... [2022-11-20 10:32:21,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:32:21,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:22,111 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 10:32:22,122 INFO L158 Benchmark]: Toolchain (without parser) took 957.32ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 110.2MB in the end (delta: 11.9MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-11-20 10:32:22,123 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:32:22,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 950.40ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 110.2MB in the end (delta: 11.9MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-11-20 10:32:22,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 950.40ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 110.2MB in the end (delta: 11.9MB). Peak memory consumption was 66.6MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 --- 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 10:32:24,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:32:24,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:32:24,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:32:24,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:32:24,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:32:24,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:32:24,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:32:24,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:32:24,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:32:24,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:32:24,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:32:24,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:32:24,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:32:24,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:32:24,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:32:24,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:32:24,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:32:24,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:32:24,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:32:24,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:32:24,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:32:24,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:32:24,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:32:24,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:32:24,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:32:24,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:32:24,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:32:24,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:32:24,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:32:24,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:32:24,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:32:24,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:32:24,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:32:24,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:32:24,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:32:24,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:32:24,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:32:24,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:32:24,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:32:24,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:32:24,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:32:24,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:32:24,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:32:24,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:32:24,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:32:24,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:32:24,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:32:24,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:32:24,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:32:24,803 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:32:24,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:32:24,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:32:24,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:32:24,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:32:24,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:32:24,805 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:32:24,805 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:32:24,805 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:32:24,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:32:24,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:32:24,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:32:24,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:32:24,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:32:24,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:32:24,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:24,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:32:24,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:32:24,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:32:24,814 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:32:24,815 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:32:24,815 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:32:24,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:32:24,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:32:24,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:32:24,817 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_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2022-11-20 10:32:25,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:32:25,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:32:25,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:32:25,266 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:32:25,267 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:32:25,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-11-20 10:32:28,318 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:32:28,990 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:32:28,991 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-11-20 10:32:29,045 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/data/dbb60caa0/eb646c414c644ecea558970f7afdcab4/FLAG2aeed0d11 [2022-11-20 10:32:29,075 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/data/dbb60caa0/eb646c414c644ecea558970f7afdcab4 [2022-11-20 10:32:29,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:32:29,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:32:29,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:29,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:32:29,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:32:29,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:29" (1/1) ... [2022-11-20 10:32:29,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58edebb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:29, skipping insertion in model container [2022-11-20 10:32:29,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:29" (1/1) ... [2022-11-20 10:32:29,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:32:29,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:32,084 WARN L569 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-11-20 10:32:32,121 WARN L569 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-11-20 10:32:32,398 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_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-11-20 10:32:32,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:32,512 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:32:32,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:33,183 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_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-11-20 10:32:33,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:33,232 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:32:33,678 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_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2022-11-20 10:32:33,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:33,936 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:32:33,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33 WrapperNode [2022-11-20 10:32:33,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:33,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:33,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:32:33,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:32:33,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,290 INFO L138 Inliner]: procedures = 424, calls = 2615, calls flagged for inlining = 208, calls inlined = 189, statements flattened = 5560 [2022-11-20 10:32:34,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:34,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:32:34,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:32:34,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:32:34,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:32:34,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:32:34,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:32:34,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:32:34,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (1/1) ... [2022-11-20 10:32:34,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:34,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:34,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:32:34,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:32:34,702 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-11-20 10:32:34,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-11-20 10:32:34,702 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 10:32:34,702 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 10:32:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:32:34,703 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:32:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 10:32:34,703 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 10:32:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_state_machine_work [2022-11-20 10:32:34,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_state_machine_work [2022-11-20 10:32:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-20 10:32:34,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-20 10:32:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-20 10:32:34,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-20 10:32:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:32:34,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:32:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-20 10:32:34,705 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-20 10:32:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 10:32:34,705 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 10:32:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-11-20 10:32:34,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-11-20 10:32:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-20 10:32:34,706 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-20 10:32:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-11-20 10:32:34,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-11-20 10:32:34,708 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 10:32:34,708 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 10:32:34,708 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 10:32:34,709 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 10:32:34,709 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-11-20 10:32:34,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-11-20 10:32:34,709 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-11-20 10:32:34,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-11-20 10:32:34,709 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 10:32:34,710 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 10:32:34,710 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 10:32:34,710 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 10:32:34,710 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-11-20 10:32:34,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-11-20 10:32:34,711 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_set_mac_address [2022-11-20 10:32:34,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_set_mac_address [2022-11-20 10:32:34,711 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-11-20 10:32:34,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-11-20 10:32:34,711 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-11-20 10:32:34,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-11-20 10:32:34,712 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 10:32:34,712 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 10:32:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 10:32:34,713 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 10:32:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 10:32:34,713 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 10:32:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-11-20 10:32:34,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-11-20 10:32:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:32:34,714 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:32:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 10:32:34,715 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 10:32:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:32:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 10:32:34,715 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 10:32:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 10:32:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:32:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:32:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-11-20 10:32:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-11-20 10:32:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:32:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-20 10:32:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-20 10:32:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-20 10:32:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-20 10:32:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 10:32:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 10:32:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-20 10:32:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-20 10:32:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 10:32:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 10:32:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 10:32:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 10:32:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_5 [2022-11-20 10:32:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_5 [2022-11-20 10:32:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-11-20 10:32:34,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-11-20 10:32:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 10:32:34,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 10:32:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:32:34,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:32:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:32:34,721 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:32:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 10:32:34,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 10:32:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-20 10:32:34,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-20 10:32:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-20 10:32:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-20 10:32:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-11-20 10:32:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-11-20 10:32:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 10:32:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 10:32:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-11-20 10:32:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-11-20 10:32:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-11-20 10:32:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-11-20 10:32:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 10:32:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 10:32:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-11-20 10:32:34,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-11-20 10:32:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-11-20 10:32:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-11-20 10:32:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:32:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-20 10:32:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-20 10:32:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-11-20 10:32:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-11-20 10:32:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:32:34,730 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_5 [2022-11-20 10:32:34,731 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_5 [2022-11-20 10:32:34,731 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-11-20 10:32:34,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-11-20 10:32:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 10:32:34,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 10:32:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:32:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-11-20 10:32:34,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-11-20 10:32:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:32:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:32:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:32:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-20 10:32:34,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-20 10:32:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 10:32:34,740 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 10:32:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-11-20 10:32:34,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-11-20 10:32:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 10:32:34,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 10:32:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 10:32:34,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 10:32:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-20 10:32:34,741 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-20 10:32:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-11-20 10:32:34,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-11-20 10:32:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-20 10:32:34,741 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-20 10:32:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-11-20 10:32:34,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-11-20 10:32:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-20 10:32:34,742 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-20 10:32:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_timeout_work [2022-11-20 10:32:34,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_timeout_work [2022-11-20 10:32:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 10:32:34,742 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 10:32:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 10:32:34,743 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 10:32:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:32:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:32:34,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:32:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-11-20 10:32:34,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-11-20 10:32:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:32:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 10:32:34,744 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 10:32:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:32:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:32:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-11-20 10:32:34,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-11-20 10:32:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:32:34,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:32:34,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:32:34,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:32:34,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:32:34,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 10:32:34,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 10:32:34,746 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-20 10:32:34,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-20 10:32:34,747 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-20 10:32:34,747 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-20 10:32:34,747 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-20 10:32:34,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-20 10:32:34,747 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-11-20 10:32:34,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-11-20 10:32:34,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:32:34,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:32:34,748 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-20 10:32:34,749 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-20 10:32:34,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 10:32:34,750 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 10:32:34,750 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-11-20 10:32:34,750 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-11-20 10:32:34,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:32:34,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:32:34,750 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-11-20 10:32:34,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-11-20 10:32:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:32:34,751 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:32:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 10:32:34,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 10:32:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 10:32:34,751 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 10:32:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-20 10:32:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-20 10:32:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 10:32:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 10:32:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:32:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 10:32:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 10:32:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:32:34,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-20 10:32:34,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-20 10:32:34,753 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-11-20 10:32:34,753 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-11-20 10:32:34,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:32:34,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:32:34,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:32:34,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:32:34,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:32:34,754 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-20 10:32:34,754 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-20 10:32:34,754 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-20 10:32:34,754 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-20 10:32:34,754 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 10:32:34,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 10:32:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 10:32:34,755 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 10:32:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-11-20 10:32:34,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-11-20 10:32:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-20 10:32:34,755 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-20 10:32:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-11-20 10:32:34,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-11-20 10:32:34,756 INFO L130 BoogieDeclarations]: Found specification of procedure ql_reset_work [2022-11-20 10:32:34,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_reset_work [2022-11-20 10:32:34,756 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 10:32:34,756 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 10:32:34,756 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-11-20 10:32:34,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-11-20 10:32:34,756 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-11-20 10:32:34,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-11-20 10:32:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-20 10:32:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-20 10:32:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 10:32:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 10:32:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-11-20 10:32:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-11-20 10:32:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-20 10:32:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-20 10:32:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:32:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:32:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-11-20 10:32:34,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-11-20 10:32:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-20 10:32:34,823 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-20 10:32:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:32:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:32:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:32:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:32:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:32:34,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:32:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-11-20 10:32:34,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-11-20 10:32:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-20 10:32:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-20 10:32:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 10:32:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 10:32:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-11-20 10:32:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-11-20 10:32:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-20 10:32:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-20 10:32:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-20 10:32:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-20 10:32:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-11-20 10:32:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-11-20 10:32:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-11-20 10:32:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-11-20 10:32:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-11-20 10:32:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-11-20 10:32:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 10:32:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 10:32:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-20 10:32:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-20 10:32:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 10:32:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 10:32:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-20 10:32:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-20 10:32:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-20 10:32:35,853 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:32:35,857 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:32:36,355 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:33:22,394 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:33:22,416 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:33:22,416 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:33:22,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:22 BoogieIcfgContainer [2022-11-20 10:33:22,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:33:22,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:33:22,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:33:22,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:33:22,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:32:29" (1/3) ... [2022-11-20 10:33:22,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a00fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:33:22, skipping insertion in model container [2022-11-20 10:33:22,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:33" (2/3) ... [2022-11-20 10:33:22,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a00fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:33:22, skipping insertion in model container [2022-11-20 10:33:22,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:22" (3/3) ... [2022-11-20 10:33:22,430 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2022-11-20 10:33:22,449 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:33:22,450 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:33:22,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:33:22,545 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;@18c91567, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:33:22,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:33:22,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 2264 states, 1511 states have (on average 1.3017868960953012) internal successors, (1967), 1567 states have internal predecessors, (1967), 626 states have call successors, (626), 126 states have call predecessors, (626), 125 states have return successors, (616), 603 states have call predecessors, (616), 616 states have call successors, (616) [2022-11-20 10:33:22,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-20 10:33:22,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:22,602 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:33:22,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:22,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:22,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1075082745, now seen corresponding path program 1 times [2022-11-20 10:33:22,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:22,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473549503] [2022-11-20 10:33:22,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:22,632 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 10:33:22,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:22,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:22,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:24,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 10:33:24,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-11-20 10:33:25,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:25,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:25,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473549503] [2022-11-20 10:33:25,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473549503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:25,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:25,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:33:25,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287109442] [2022-11-20 10:33:25,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:25,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:33:25,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:25,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:33:25,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:33:25,099 INFO L87 Difference]: Start difference. First operand has 2264 states, 1511 states have (on average 1.3017868960953012) internal successors, (1967), 1567 states have internal predecessors, (1967), 626 states have call successors, (626), 126 states have call predecessors, (626), 125 states have return successors, (616), 603 states have call predecessors, (616), 616 states have call successors, (616) Second operand has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 10:33:25,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:25,418 INFO L93 Difference]: Finished difference Result 4523 states and 6461 transitions. [2022-11-20 10:33:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:33:25,425 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 205 [2022-11-20 10:33:25,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:25,473 INFO L225 Difference]: With dead ends: 4523 [2022-11-20 10:33:25,473 INFO L226 Difference]: Without dead ends: 2238 [2022-11-20 10:33:25,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:33:25,498 INFO L413 NwaCegarLoop]: 3205 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:25,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3205 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:33:25,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2022-11-20 10:33:25,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 2238. [2022-11-20 10:33:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 1497 states have (on average 1.2919171676686707) internal successors, (1934), 1541 states have internal predecessors, (1934), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-11-20 10:33:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 3165 transitions. [2022-11-20 10:33:25,729 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 3165 transitions. Word has length 205 [2022-11-20 10:33:25,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:25,729 INFO L495 AbstractCegarLoop]: Abstraction has 2238 states and 3165 transitions. [2022-11-20 10:33:25,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 10:33:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 3165 transitions. [2022-11-20 10:33:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-20 10:33:25,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:25,746 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:33:25,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:25,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:25,959 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:25,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:25,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1190514821, now seen corresponding path program 1 times [2022-11-20 10:33:25,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:25,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947237484] [2022-11-20 10:33:25,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:25,964 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 10:33:25,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:25,966 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:26,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:28,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:33:28,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:28,721 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-20 10:33:28,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:28,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:28,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947237484] [2022-11-20 10:33:28,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947237484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:28,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:28,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:33:28,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528778112] [2022-11-20 10:33:28,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:28,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:33:28,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:28,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:33:28,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:33:28,725 INFO L87 Difference]: Start difference. First operand 2238 states and 3165 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 10:33:29,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:29,215 INFO L93 Difference]: Finished difference Result 4466 states and 6345 transitions. [2022-11-20 10:33:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:33:29,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 205 [2022-11-20 10:33:29,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:29,234 INFO L225 Difference]: With dead ends: 4466 [2022-11-20 10:33:29,235 INFO L226 Difference]: Without dead ends: 2239 [2022-11-20 10:33:29,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 200 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 10:33:29,247 INFO L413 NwaCegarLoop]: 3160 mSDtfsCounter, 6 mSDsluCounter, 12624 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15784 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:29,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15784 Invalid, 40 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:33:29,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2022-11-20 10:33:29,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 2239. [2022-11-20 10:33:29,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 1498 states have (on average 1.2917222963951935) internal successors, (1935), 1542 states have internal predecessors, (1935), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-11-20 10:33:29,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 3166 transitions. [2022-11-20 10:33:29,354 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 3166 transitions. Word has length 205 [2022-11-20 10:33:29,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:29,356 INFO L495 AbstractCegarLoop]: Abstraction has 2239 states and 3166 transitions. [2022-11-20 10:33:29,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 10:33:29,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 3166 transitions. [2022-11-20 10:33:29,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-20 10:33:29,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:29,424 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:33:29,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:29,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:29,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:29,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:29,636 INFO L85 PathProgramCache]: Analyzing trace with hash -799416131, now seen corresponding path program 1 times [2022-11-20 10:33:29,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:29,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401363047] [2022-11-20 10:33:29,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:29,639 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 10:33:29,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:29,642 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:29,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:32,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 2155 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:33:32,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:32,277 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-11-20 10:33:32,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:33:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 10:33:33,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:33,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401363047] [2022-11-20 10:33:33,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401363047] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:33:33,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:33:33,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 10:33:33,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328443483] [2022-11-20 10:33:33,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:33:33,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:33:33,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:33,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:33:33,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:33:33,159 INFO L87 Difference]: Start difference. First operand 2239 states and 3166 transitions. Second operand has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-20 10:33:33,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:33,922 INFO L93 Difference]: Finished difference Result 4468 states and 6347 transitions. [2022-11-20 10:33:33,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:33:33,924 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 207 [2022-11-20 10:33:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:33,950 INFO L225 Difference]: With dead ends: 4468 [2022-11-20 10:33:33,950 INFO L226 Difference]: Without dead ends: 2240 [2022-11-20 10:33:33,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:33:33,973 INFO L413 NwaCegarLoop]: 3160 mSDtfsCounter, 7 mSDsluCounter, 22092 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25252 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:33,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25252 Invalid, 73 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:33:33,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2022-11-20 10:33:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2240. [2022-11-20 10:33:34,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 1499 states have (on average 1.2915276851234156) internal successors, (1936), 1543 states have internal predecessors, (1936), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-11-20 10:33:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 3167 transitions. [2022-11-20 10:33:34,104 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 3167 transitions. Word has length 207 [2022-11-20 10:33:34,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:34,105 INFO L495 AbstractCegarLoop]: Abstraction has 2240 states and 3167 transitions. [2022-11-20 10:33:34,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-20 10:33:34,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 3167 transitions. [2022-11-20 10:33:34,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-20 10:33:34,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:34,115 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:33:34,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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)] Ended with exit code 0 [2022-11-20 10:33:34,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:34,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:34,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:34,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1467447867, now seen corresponding path program 2 times [2022-11-20 10:33:34,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:34,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449144225] [2022-11-20 10:33:34,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:33:34,342 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 10:33:34,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:34,345 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:34,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:35,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:33:35,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:33:35,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1513 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:33:35,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-20 10:33:36,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:36,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:36,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449144225] [2022-11-20 10:33:36,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449144225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:36,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:36,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:33:36,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925307064] [2022-11-20 10:33:36,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:36,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:33:36,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:36,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:33:36,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:33:36,051 INFO L87 Difference]: Start difference. First operand 2240 states and 3167 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 10:33:36,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:36,829 INFO L93 Difference]: Finished difference Result 4711 states and 6719 transitions. [2022-11-20 10:33:36,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:33:36,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 209 [2022-11-20 10:33:36,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:36,848 INFO L225 Difference]: With dead ends: 4711 [2022-11-20 10:33:36,848 INFO L226 Difference]: Without dead ends: 2498 [2022-11-20 10:33:36,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 206 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 10:33:36,862 INFO L413 NwaCegarLoop]: 3557 mSDtfsCounter, 369 mSDsluCounter, 6534 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 10091 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:36,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 10091 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:33:36,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2022-11-20 10:33:36,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2242. [2022-11-20 10:33:36,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 1501 states have (on average 1.2911392405063291) internal successors, (1938), 1545 states have internal predecessors, (1938), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-11-20 10:33:36,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 3169 transitions. [2022-11-20 10:33:36,954 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 3169 transitions. Word has length 209 [2022-11-20 10:33:36,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:36,956 INFO L495 AbstractCegarLoop]: Abstraction has 2242 states and 3169 transitions. [2022-11-20 10:33:36,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 10:33:36,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 3169 transitions. [2022-11-20 10:33:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-20 10:33:36,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:36,964 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:33:37,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:37,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:37,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:37,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:37,179 INFO L85 PathProgramCache]: Analyzing trace with hash -184822465, now seen corresponding path program 1 times [2022-11-20 10:33:37,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:37,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520651056] [2022-11-20 10:33:37,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:37,218 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 10:33:37,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:37,222 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:37,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:39,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 2243 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:33:39,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 10:33:39,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:33:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-20 10:33:40,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:40,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520651056] [2022-11-20 10:33:40,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520651056] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:33:40,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:33:40,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 10:33:40,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166446544] [2022-11-20 10:33:40,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:33:40,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 10:33:40,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:40,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 10:33:40,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:33:40,797 INFO L87 Difference]: Start difference. First operand 2242 states and 3169 transitions. Second operand has 13 states, 11 states have (on average 10.545454545454545) internal successors, (116), 13 states have internal predecessors, (116), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-20 10:33:41,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:41,449 INFO L93 Difference]: Finished difference Result 4474 states and 6353 transitions. [2022-11-20 10:33:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:33:41,450 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.545454545454545) internal successors, (116), 13 states have internal predecessors, (116), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 215 [2022-11-20 10:33:41,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:41,466 INFO L225 Difference]: With dead ends: 4474 [2022-11-20 10:33:41,466 INFO L226 Difference]: Without dead ends: 2243 [2022-11-20 10:33:41,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:33:41,480 INFO L413 NwaCegarLoop]: 3160 mSDtfsCounter, 10 mSDsluCounter, 18934 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 22094 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:41,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 22094 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:33:41,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2022-11-20 10:33:41,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2243. [2022-11-20 10:33:41,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 1502 states have (on average 1.2909454061251664) internal successors, (1939), 1546 states have internal predecessors, (1939), 616 states have call successors, (616), 125 states have call predecessors, (616), 124 states have return successors, (615), 602 states have call predecessors, (615), 615 states have call successors, (615) [2022-11-20 10:33:41,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 3170 transitions. [2022-11-20 10:33:41,562 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 3170 transitions. Word has length 215 [2022-11-20 10:33:41,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:41,563 INFO L495 AbstractCegarLoop]: Abstraction has 2243 states and 3170 transitions. [2022-11-20 10:33:41,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.545454545454545) internal successors, (116), 13 states have internal predecessors, (116), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-20 10:33:41,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 3170 transitions. [2022-11-20 10:33:41,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-20 10:33:41,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:41,572 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:33:41,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:41,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:41,795 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:41,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:41,795 INFO L85 PathProgramCache]: Analyzing trace with hash -565128063, now seen corresponding path program 2 times [2022-11-20 10:33:41,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:41,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151687791] [2022-11-20 10:33:41,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:33:41,798 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 10:33:41,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:41,799 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:41,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:43,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:33:43,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:33:43,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 10:33:43,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-20 10:33:43,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:43,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:43,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151687791] [2022-11-20 10:33:43,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151687791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:43,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:43,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:33:43,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662632329] [2022-11-20 10:33:43,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:43,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:33:43,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:43,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:33:43,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:33:43,846 INFO L87 Difference]: Start difference. First operand 2243 states and 3170 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:33:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:44,608 INFO L93 Difference]: Finished difference Result 4467 states and 6346 transitions. [2022-11-20 10:33:44,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:33:44,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 217 [2022-11-20 10:33:44,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:44,625 INFO L225 Difference]: With dead ends: 4467 [2022-11-20 10:33:44,625 INFO L226 Difference]: Without dead ends: 2251 [2022-11-20 10:33:44,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:33:44,637 INFO L413 NwaCegarLoop]: 3163 mSDtfsCounter, 2 mSDsluCounter, 18959 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22122 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:44,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22122 Invalid, 46 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:33:44,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2022-11-20 10:33:44,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 2251. [2022-11-20 10:33:44,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 1508 states have (on average 1.289787798408488) internal successors, (1945), 1552 states have internal predecessors, (1945), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-11-20 10:33:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 3188 transitions. [2022-11-20 10:33:44,723 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 3188 transitions. Word has length 217 [2022-11-20 10:33:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:44,724 INFO L495 AbstractCegarLoop]: Abstraction has 2251 states and 3188 transitions. [2022-11-20 10:33:44,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:33:44,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 3188 transitions. [2022-11-20 10:33:44,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-20 10:33:44,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:44,733 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 10:33:44,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:44,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:44,947 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:44,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:44,948 INFO L85 PathProgramCache]: Analyzing trace with hash -721237203, now seen corresponding path program 1 times [2022-11-20 10:33:44,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:44,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616947021] [2022-11-20 10:33:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:44,950 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 10:33:44,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:44,951 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:44,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:47,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 2282 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:33:47,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:47,622 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-11-20 10:33:47,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:33:48,958 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-11-20 10:33:48,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:48,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616947021] [2022-11-20 10:33:48,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616947021] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:33:48,959 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:33:48,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 10:33:48,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178459136] [2022-11-20 10:33:48,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:33:48,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:33:48,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:48,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:33:48,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:33:48,962 INFO L87 Difference]: Start difference. First operand 2251 states and 3188 transitions. Second operand has 15 states, 13 states have (on average 9.615384615384615) internal successors, (125), 15 states have internal predecessors, (125), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-20 10:33:49,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:49,837 INFO L93 Difference]: Finished difference Result 4492 states and 6391 transitions. [2022-11-20 10:33:49,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:33:49,839 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.615384615384615) internal successors, (125), 15 states have internal predecessors, (125), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 223 [2022-11-20 10:33:49,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:49,854 INFO L225 Difference]: With dead ends: 4492 [2022-11-20 10:33:49,854 INFO L226 Difference]: Without dead ends: 2252 [2022-11-20 10:33:49,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:33:49,866 INFO L413 NwaCegarLoop]: 3160 mSDtfsCounter, 9 mSDsluCounter, 31560 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 34720 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:49,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 34720 Invalid, 123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:33:49,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2022-11-20 10:33:49,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2252. [2022-11-20 10:33:49,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 1509 states have (on average 1.2895957587806495) internal successors, (1946), 1553 states have internal predecessors, (1946), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-11-20 10:33:49,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3189 transitions. [2022-11-20 10:33:49,971 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3189 transitions. Word has length 223 [2022-11-20 10:33:49,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:49,975 INFO L495 AbstractCegarLoop]: Abstraction has 2252 states and 3189 transitions. [2022-11-20 10:33:49,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.615384615384615) internal successors, (125), 15 states have internal predecessors, (125), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-11-20 10:33:49,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3189 transitions. [2022-11-20 10:33:49,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-11-20 10:33:49,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:49,988 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2022-11-20 10:33:50,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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)] Ended with exit code 0 [2022-11-20 10:33:50,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:50,207 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:50,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:50,207 INFO L85 PathProgramCache]: Analyzing trace with hash -128843137, now seen corresponding path program 2 times [2022-11-20 10:33:50,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:50,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882899688] [2022-11-20 10:33:50,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:33:50,209 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 10:33:50,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:50,210 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:50,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:51,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:33:51,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:33:51,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:51,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:51,645 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-20 10:33:51,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:51,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:51,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882899688] [2022-11-20 10:33:51,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882899688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:51,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:51,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:51,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550364295] [2022-11-20 10:33:51,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:51,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:51,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:51,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:51,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:51,648 INFO L87 Difference]: Start difference. First operand 2252 states and 3189 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:33:52,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:52,217 INFO L93 Difference]: Finished difference Result 4479 states and 6368 transitions. [2022-11-20 10:33:52,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:52,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 231 [2022-11-20 10:33:52,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:52,233 INFO L225 Difference]: With dead ends: 4479 [2022-11-20 10:33:52,233 INFO L226 Difference]: Without dead ends: 2254 [2022-11-20 10:33:52,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 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 10:33:52,247 INFO L413 NwaCegarLoop]: 3163 mSDtfsCounter, 1 mSDsluCounter, 3160 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6323 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:52,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6323 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:33:52,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2022-11-20 10:33:52,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 2253. [2022-11-20 10:33:52,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2253 states, 1510 states have (on average 1.2894039735099339) internal successors, (1947), 1554 states have internal predecessors, (1947), 616 states have call successors, (616), 125 states have call predecessors, (616), 126 states have return successors, (627), 604 states have call predecessors, (627), 615 states have call successors, (627) [2022-11-20 10:33:52,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 3190 transitions. [2022-11-20 10:33:52,329 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 3190 transitions. Word has length 231 [2022-11-20 10:33:52,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:52,329 INFO L495 AbstractCegarLoop]: Abstraction has 2253 states and 3190 transitions. [2022-11-20 10:33:52,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:33:52,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 3190 transitions. [2022-11-20 10:33:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-20 10:33:52,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:52,339 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2022-11-20 10:33:52,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:52,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:52,552 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:52,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:52,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2077430843, now seen corresponding path program 1 times [2022-11-20 10:33:52,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:52,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194668595] [2022-11-20 10:33:52,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:52,554 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 10:33:52,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:52,555 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:52,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:55,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 2379 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:55,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-20 10:33:55,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:55,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:55,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194668595] [2022-11-20 10:33:55,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194668595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:55,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:55,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:55,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999153509] [2022-11-20 10:33:55,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:55,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:55,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:55,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:55,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:55,141 INFO L87 Difference]: Start difference. First operand 2253 states and 3190 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:33:55,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:55,686 INFO L93 Difference]: Finished difference Result 6368 states and 9013 transitions. [2022-11-20 10:33:55,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:55,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 233 [2022-11-20 10:33:55,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:55,712 INFO L225 Difference]: With dead ends: 6368 [2022-11-20 10:33:55,712 INFO L226 Difference]: Without dead ends: 4142 [2022-11-20 10:33:55,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 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 10:33:55,723 INFO L413 NwaCegarLoop]: 3679 mSDtfsCounter, 2754 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2754 SdHoareTripleChecker+Valid, 6667 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:55,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2754 Valid, 6667 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:33:55,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4142 states. [2022-11-20 10:33:55,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4142 to 4126. [2022-11-20 10:33:55,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 2759 states have (on average 1.2881478796665458) internal successors, (3554), 2845 states have internal predecessors, (3554), 1131 states have call successors, (1131), 232 states have call predecessors, (1131), 235 states have return successors, (1154), 1105 states have call predecessors, (1154), 1130 states have call successors, (1154) [2022-11-20 10:33:55,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 5839 transitions. [2022-11-20 10:33:55,900 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 5839 transitions. Word has length 233 [2022-11-20 10:33:55,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:55,901 INFO L495 AbstractCegarLoop]: Abstraction has 4126 states and 5839 transitions. [2022-11-20 10:33:55,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:33:55,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 5839 transitions. [2022-11-20 10:33:55,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-20 10:33:55,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:55,930 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:33:55,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:56,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:56,155 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:56,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:56,156 INFO L85 PathProgramCache]: Analyzing trace with hash 477684256, now seen corresponding path program 1 times [2022-11-20 10:33:56,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:56,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358930880] [2022-11-20 10:33:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:56,158 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 10:33:56,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:56,160 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:56,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:33:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:58,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 2819 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:58,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-20 10:33:58,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:58,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:58,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358930880] [2022-11-20 10:33:58,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358930880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:58,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:58,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:58,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242350562] [2022-11-20 10:33:58,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:58,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:58,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:58,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:58,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:58,933 INFO L87 Difference]: Start difference. First operand 4126 states and 5839 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 10:33:59,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:59,523 INFO L93 Difference]: Finished difference Result 12278 states and 17428 transitions. [2022-11-20 10:33:59,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:59,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 354 [2022-11-20 10:33:59,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:59,581 INFO L225 Difference]: With dead ends: 12278 [2022-11-20 10:33:59,581 INFO L226 Difference]: Without dead ends: 8179 [2022-11-20 10:33:59,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 352 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 10:33:59,601 INFO L413 NwaCegarLoop]: 3782 mSDtfsCounter, 3113 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3113 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:59,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3113 Valid, 6911 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:33:59,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-11-20 10:33:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 8176. [2022-11-20 10:33:59,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8176 states, 5464 states have (on average 1.2887994143484627) internal successors, (7042), 5641 states have internal predecessors, (7042), 2247 states have call successors, (2247), 462 states have call predecessors, (2247), 464 states have return successors, (2302), 2186 states have call predecessors, (2302), 2246 states have call successors, (2302) [2022-11-20 10:34:00,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8176 states to 8176 states and 11591 transitions. [2022-11-20 10:34:00,027 INFO L78 Accepts]: Start accepts. Automaton has 8176 states and 11591 transitions. Word has length 354 [2022-11-20 10:34:00,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:00,028 INFO L495 AbstractCegarLoop]: Abstraction has 8176 states and 11591 transitions. [2022-11-20 10:34:00,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 10:34:00,028 INFO L276 IsEmpty]: Start isEmpty. Operand 8176 states and 11591 transitions. [2022-11-20 10:34:00,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-11-20 10:34:00,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:00,047 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:00,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:00,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:00,267 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:00,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:00,268 INFO L85 PathProgramCache]: Analyzing trace with hash 603097077, now seen corresponding path program 1 times [2022-11-20 10:34:00,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:00,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149410567] [2022-11-20 10:34:00,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:00,269 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 10:34:00,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:00,270 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:00,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:03,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 2952 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:03,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-20 10:34:03,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:03,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:03,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149410567] [2022-11-20 10:34:03,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149410567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:03,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:03,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:03,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50102391] [2022-11-20 10:34:03,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:03,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:03,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:03,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:03,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:03,241 INFO L87 Difference]: Start difference. First operand 8176 states and 11591 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-20 10:34:03,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:03,699 INFO L93 Difference]: Finished difference Result 16317 states and 23135 transitions. [2022-11-20 10:34:03,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:03,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 411 [2022-11-20 10:34:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:03,750 INFO L225 Difference]: With dead ends: 16317 [2022-11-20 10:34:03,750 INFO L226 Difference]: Without dead ends: 8168 [2022-11-20 10:34:03,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 409 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 10:34:03,784 INFO L413 NwaCegarLoop]: 3160 mSDtfsCounter, 3150 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3150 SdHoareTripleChecker+Valid, 3160 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:03,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3150 Valid, 3160 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:34:03,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8168 states. [2022-11-20 10:34:04,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8168 to 8168. [2022-11-20 10:34:04,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8168 states, 5460 states have (on average 1.2882783882783884) internal successors, (7034), 5637 states have internal predecessors, (7034), 2243 states have call successors, (2243), 462 states have call predecessors, (2243), 464 states have return successors, (2298), 2182 states have call predecessors, (2298), 2242 states have call successors, (2298) [2022-11-20 10:34:04,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8168 states to 8168 states and 11575 transitions. [2022-11-20 10:34:04,389 INFO L78 Accepts]: Start accepts. Automaton has 8168 states and 11575 transitions. Word has length 411 [2022-11-20 10:34:04,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:04,390 INFO L495 AbstractCegarLoop]: Abstraction has 8168 states and 11575 transitions. [2022-11-20 10:34:04,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-20 10:34:04,390 INFO L276 IsEmpty]: Start isEmpty. Operand 8168 states and 11575 transitions. [2022-11-20 10:34:04,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-11-20 10:34:04,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:04,410 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:04,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:04,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:04,627 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:04,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash 406978332, now seen corresponding path program 1 times [2022-11-20 10:34:04,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:04,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823051531] [2022-11-20 10:34:04,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:04,629 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 10:34:04,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:04,630 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:04,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:07,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:07,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:07,437 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-20 10:34:07,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:07,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:07,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823051531] [2022-11-20 10:34:07,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823051531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:07,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:07,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:07,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354646581] [2022-11-20 10:34:07,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:07,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:07,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:07,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:07,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:07,440 INFO L87 Difference]: Start difference. First operand 8168 states and 11575 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-20 10:34:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:07,974 INFO L93 Difference]: Finished difference Result 16301 states and 23103 transitions. [2022-11-20 10:34:07,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:07,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 412 [2022-11-20 10:34:07,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:08,017 INFO L225 Difference]: With dead ends: 16301 [2022-11-20 10:34:08,017 INFO L226 Difference]: Without dead ends: 8160 [2022-11-20 10:34:08,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 410 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 10:34:08,052 INFO L413 NwaCegarLoop]: 3156 mSDtfsCounter, 3145 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:08,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3145 Valid, 3156 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:34:08,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8160 states. [2022-11-20 10:34:08,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8160 to 8160. [2022-11-20 10:34:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8160 states, 5456 states have (on average 1.2877565982404693) internal successors, (7026), 5633 states have internal predecessors, (7026), 2239 states have call successors, (2239), 462 states have call predecessors, (2239), 464 states have return successors, (2294), 2178 states have call predecessors, (2294), 2238 states have call successors, (2294) [2022-11-20 10:34:08,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8160 states to 8160 states and 11559 transitions. [2022-11-20 10:34:08,666 INFO L78 Accepts]: Start accepts. Automaton has 8160 states and 11559 transitions. Word has length 412 [2022-11-20 10:34:08,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:08,668 INFO L495 AbstractCegarLoop]: Abstraction has 8160 states and 11559 transitions. [2022-11-20 10:34:08,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-20 10:34:08,669 INFO L276 IsEmpty]: Start isEmpty. Operand 8160 states and 11559 transitions. [2022-11-20 10:34:08,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2022-11-20 10:34:08,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:08,687 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:08,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:08,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:08,911 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:08,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:08,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1189710633, now seen corresponding path program 1 times [2022-11-20 10:34:08,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:08,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740697058] [2022-11-20 10:34:08,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:08,914 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 10:34:08,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:08,916 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:08,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:11,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:11,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:11,947 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-20 10:34:11,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:11,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:11,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740697058] [2022-11-20 10:34:11,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740697058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:11,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:11,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:11,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882077553] [2022-11-20 10:34:11,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:11,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:11,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:11,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:11,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:11,951 INFO L87 Difference]: Start difference. First operand 8160 states and 11559 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-20 10:34:12,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:12,473 INFO L93 Difference]: Finished difference Result 16285 states and 23071 transitions. [2022-11-20 10:34:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:12,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 417 [2022-11-20 10:34:12,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:12,516 INFO L225 Difference]: With dead ends: 16285 [2022-11-20 10:34:12,516 INFO L226 Difference]: Without dead ends: 8152 [2022-11-20 10:34:12,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 415 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 10:34:12,546 INFO L413 NwaCegarLoop]: 3152 mSDtfsCounter, 3140 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3140 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:12,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3140 Valid, 3152 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:34:12,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8152 states. [2022-11-20 10:34:13,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8152 to 8152. [2022-11-20 10:34:13,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8152 states, 5452 states have (on average 1.2872340425531914) internal successors, (7018), 5629 states have internal predecessors, (7018), 2235 states have call successors, (2235), 462 states have call predecessors, (2235), 464 states have return successors, (2290), 2174 states have call predecessors, (2290), 2234 states have call successors, (2290) [2022-11-20 10:34:13,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8152 states to 8152 states and 11543 transitions. [2022-11-20 10:34:13,171 INFO L78 Accepts]: Start accepts. Automaton has 8152 states and 11543 transitions. Word has length 417 [2022-11-20 10:34:13,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:13,172 INFO L495 AbstractCegarLoop]: Abstraction has 8152 states and 11543 transitions. [2022-11-20 10:34:13,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-20 10:34:13,172 INFO L276 IsEmpty]: Start isEmpty. Operand 8152 states and 11543 transitions. [2022-11-20 10:34:13,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-11-20 10:34:13,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:13,188 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:13,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:13,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:13,403 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:13,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:13,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1003253380, now seen corresponding path program 1 times [2022-11-20 10:34:13,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:13,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981546536] [2022-11-20 10:34:13,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:13,407 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 10:34:13,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:13,408 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:13,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:16,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 2985 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:16,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:16,621 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-11-20 10:34:16,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:16,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:16,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981546536] [2022-11-20 10:34:16,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981546536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:16,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:16,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:16,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768815471] [2022-11-20 10:34:16,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:16,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:16,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:16,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:16,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:16,624 INFO L87 Difference]: Start difference. First operand 8152 states and 11543 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-20 10:34:17,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:17,278 INFO L93 Difference]: Finished difference Result 16059 states and 22711 transitions. [2022-11-20 10:34:17,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:17,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 424 [2022-11-20 10:34:17,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:17,326 INFO L225 Difference]: With dead ends: 16059 [2022-11-20 10:34:17,326 INFO L226 Difference]: Without dead ends: 7934 [2022-11-20 10:34:17,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 422 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 10:34:17,361 INFO L413 NwaCegarLoop]: 3076 mSDtfsCounter, 3063 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3063 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:17,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3063 Valid, 3076 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:34:17,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7934 states. [2022-11-20 10:34:18,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7934 to 7934. [2022-11-20 10:34:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7934 states, 5334 states have (on average 1.286464191976003) internal successors, (6862), 5507 states have internal predecessors, (6862), 2141 states have call successors, (2141), 456 states have call predecessors, (2141), 458 states have return successors, (2196), 2080 states have call predecessors, (2196), 2140 states have call successors, (2196) [2022-11-20 10:34:18,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7934 states to 7934 states and 11199 transitions. [2022-11-20 10:34:18,107 INFO L78 Accepts]: Start accepts. Automaton has 7934 states and 11199 transitions. Word has length 424 [2022-11-20 10:34:18,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:18,107 INFO L495 AbstractCegarLoop]: Abstraction has 7934 states and 11199 transitions. [2022-11-20 10:34:18,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-20 10:34:18,108 INFO L276 IsEmpty]: Start isEmpty. Operand 7934 states and 11199 transitions. [2022-11-20 10:34:18,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-11-20 10:34:18,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:18,126 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:18,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:18,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:18,351 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:18,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:18,352 INFO L85 PathProgramCache]: Analyzing trace with hash 141288639, now seen corresponding path program 1 times [2022-11-20 10:34:18,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:18,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81881392] [2022-11-20 10:34:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:18,354 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 10:34:18,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:18,355 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:18,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:21,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:21,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:21,261 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-20 10:34:21,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:21,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:21,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81881392] [2022-11-20 10:34:21,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81881392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:21,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:21,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:21,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983345182] [2022-11-20 10:34:21,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:21,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:21,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:21,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:21,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:21,264 INFO L87 Difference]: Start difference. First operand 7934 states and 11199 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 10:34:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:22,267 INFO L93 Difference]: Finished difference Result 19803 states and 27995 transitions. [2022-11-20 10:34:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:22,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 355 [2022-11-20 10:34:22,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:22,326 INFO L225 Difference]: With dead ends: 19803 [2022-11-20 10:34:22,327 INFO L226 Difference]: Without dead ends: 11896 [2022-11-20 10:34:22,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 353 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 10:34:22,354 INFO L413 NwaCegarLoop]: 3651 mSDtfsCounter, 3051 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 6692 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:22,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3051 Valid, 6692 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:34:22,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11896 states. [2022-11-20 10:34:23,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11896 to 11893. [2022-11-20 10:34:23,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11893 states, 8000 states have (on average 1.2855) internal successors, (10284), 8257 states have internal predecessors, (10284), 3203 states have call successors, (3203), 683 states have call predecessors, (3203), 689 states have return successors, (3300), 3117 states have call predecessors, (3300), 3202 states have call successors, (3300) [2022-11-20 10:34:23,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11893 states to 11893 states and 16787 transitions. [2022-11-20 10:34:23,635 INFO L78 Accepts]: Start accepts. Automaton has 11893 states and 16787 transitions. Word has length 355 [2022-11-20 10:34:23,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:23,636 INFO L495 AbstractCegarLoop]: Abstraction has 11893 states and 16787 transitions. [2022-11-20 10:34:23,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 10:34:23,636 INFO L276 IsEmpty]: Start isEmpty. Operand 11893 states and 16787 transitions. [2022-11-20 10:34:23,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-20 10:34:23,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:23,652 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:23,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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)] Forceful destruction successful, exit code 0 [2022-11-20 10:34:23,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:23,875 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:23,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:23,876 INFO L85 PathProgramCache]: Analyzing trace with hash -712029495, now seen corresponding path program 1 times [2022-11-20 10:34:23,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:23,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156561258] [2022-11-20 10:34:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:23,878 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 10:34:23,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:23,880 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:23,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 (17)] Waiting until timeout for monitored process [2022-11-20 10:34:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:26,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 2823 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:26,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-20 10:34:26,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:26,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:26,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156561258] [2022-11-20 10:34:26,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156561258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:26,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:26,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:26,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175910504] [2022-11-20 10:34:26,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:26,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:26,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:26,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:26,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:26,856 INFO L87 Difference]: Start difference. First operand 11893 states and 16787 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 10:34:28,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:28,181 INFO L93 Difference]: Finished difference Result 27717 states and 39173 transitions. [2022-11-20 10:34:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:28,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 356 [2022-11-20 10:34:28,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:28,256 INFO L225 Difference]: With dead ends: 27717 [2022-11-20 10:34:28,256 INFO L226 Difference]: Without dead ends: 15851 [2022-11-20 10:34:28,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 354 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 10:34:28,299 INFO L413 NwaCegarLoop]: 3651 mSDtfsCounter, 3052 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 6692 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:28,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3052 Valid, 6692 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:34:28,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15851 states. [2022-11-20 10:34:29,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15851 to 15848. [2022-11-20 10:34:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15848 states, 10665 states have (on average 1.2848570089076419) internal successors, (13703), 11006 states have internal predecessors, (13703), 4262 states have call successors, (4262), 910 states have call predecessors, (4262), 920 states have return successors, (4401), 4151 states have call predecessors, (4401), 4261 states have call successors, (4401) [2022-11-20 10:34:29,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15848 states to 15848 states and 22366 transitions. [2022-11-20 10:34:29,922 INFO L78 Accepts]: Start accepts. Automaton has 15848 states and 22366 transitions. Word has length 356 [2022-11-20 10:34:29,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:29,923 INFO L495 AbstractCegarLoop]: Abstraction has 15848 states and 22366 transitions. [2022-11-20 10:34:29,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 10:34:29,924 INFO L276 IsEmpty]: Start isEmpty. Operand 15848 states and 22366 transitions. [2022-11-20 10:34:29,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-11-20 10:34:29,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:29,948 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:30,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 (17)] Forceful destruction successful, exit code 0 [2022-11-20 10:34:30,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:30,163 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:30,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:30,164 INFO L85 PathProgramCache]: Analyzing trace with hash -410076472, now seen corresponding path program 1 times [2022-11-20 10:34:30,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:30,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877637222] [2022-11-20 10:34:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:30,167 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 10:34:30,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:30,168 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:30,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 (18)] Waiting until timeout for monitored process [2022-11-20 10:34:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:33,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 2825 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:34:33,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-20 10:34:33,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:33,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:33,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877637222] [2022-11-20 10:34:33,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877637222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:33,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:33,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:33,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864874473] [2022-11-20 10:34:33,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:33,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:33,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:33,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:33,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:33,347 INFO L87 Difference]: Start difference. First operand 15848 states and 22366 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 10:34:34,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:34,931 INFO L93 Difference]: Finished difference Result 34912 states and 49332 transitions. [2022-11-20 10:34:34,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:34,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 357 [2022-11-20 10:34:34,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:35,112 INFO L225 Difference]: With dead ends: 34912 [2022-11-20 10:34:35,113 INFO L226 Difference]: Without dead ends: 19091 [2022-11-20 10:34:35,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 355 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 10:34:35,165 INFO L413 NwaCegarLoop]: 3651 mSDtfsCounter, 3053 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3053 SdHoareTripleChecker+Valid, 6692 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:35,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3053 Valid, 6692 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:34:35,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19091 states. [2022-11-20 10:34:36,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19091 to 19086. [2022-11-20 10:34:36,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19086 states, 12882 states have (on average 1.2862133209129016) internal successors, (16569), 13289 states have internal predecessors, (16569), 5097 states have call successors, (5097), 1094 states have call predecessors, (5097), 1106 states have return successors, (5266), 4961 states have call predecessors, (5266), 5096 states have call successors, (5266) [2022-11-20 10:34:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19086 states to 19086 states and 26932 transitions. [2022-11-20 10:34:37,038 INFO L78 Accepts]: Start accepts. Automaton has 19086 states and 26932 transitions. Word has length 357 [2022-11-20 10:34:37,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:37,039 INFO L495 AbstractCegarLoop]: Abstraction has 19086 states and 26932 transitions. [2022-11-20 10:34:37,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 10:34:37,039 INFO L276 IsEmpty]: Start isEmpty. Operand 19086 states and 26932 transitions. [2022-11-20 10:34:37,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-11-20 10:34:37,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:37,180 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:34:37,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 (18)] Ended with exit code 0 [2022-11-20 10:34:37,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:37,391 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:37,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:37,392 INFO L85 PathProgramCache]: Analyzing trace with hash -225434879, now seen corresponding path program 1 times [2022-11-20 10:34:37,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:37,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12132986] [2022-11-20 10:34:37,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:37,394 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 10:34:37,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:37,395 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:34:37,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 (19)] Waiting until timeout for monitored process [2022-11-20 10:34:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:40,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 2970 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:34:40,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:41,680 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-20 10:34:41,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:41,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:41,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12132986] [2022-11-20 10:34:41,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12132986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:41,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:41,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:34:41,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631570325] [2022-11-20 10:34:41,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:41,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:34:41,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:41,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:34:41,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:34:41,683 INFO L87 Difference]: Start difference. First operand 19086 states and 26932 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) [2022-11-20 10:35:18,462 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 10:35:31,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:31,829 INFO L93 Difference]: Finished difference Result 68160 states and 97108 transitions. [2022-11-20 10:35:31,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:35:31,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) Word has length 386 [2022-11-20 10:35:31,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:32,093 INFO L225 Difference]: With dead ends: 68160 [2022-11-20 10:35:32,093 INFO L226 Difference]: Without dead ends: 49109 [2022-11-20 10:35:32,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:35:32,156 INFO L413 NwaCegarLoop]: 2361 mSDtfsCounter, 5959 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 9538 mSolverCounterSat, 3453 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6529 SdHoareTripleChecker+Valid, 5807 SdHoareTripleChecker+Invalid, 12992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3453 IncrementalHoareTripleChecker+Valid, 9538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:32,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6529 Valid, 5807 Invalid, 12992 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3453 Valid, 9538 Invalid, 1 Unknown, 0 Unchecked, 45.3s Time] [2022-11-20 10:35:32,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49109 states. [2022-11-20 10:35:36,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49109 to 48909. [2022-11-20 10:35:36,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48909 states, 32317 states have (on average 1.2753040195562706) internal successors, (41214), 33485 states have internal predecessors, (41214), 13724 states have call successors, (13724), 2709 states have call predecessors, (13724), 2867 states have return successors, (14760), 13510 states have call predecessors, (14760), 13723 states have call successors, (14760) [2022-11-20 10:35:36,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48909 states to 48909 states and 69698 transitions. [2022-11-20 10:35:36,725 INFO L78 Accepts]: Start accepts. Automaton has 48909 states and 69698 transitions. Word has length 386 [2022-11-20 10:35:36,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:36,725 INFO L495 AbstractCegarLoop]: Abstraction has 48909 states and 69698 transitions. [2022-11-20 10:35:36,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 5 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (43), 5 states have call predecessors, (43), 5 states have call successors, (43) [2022-11-20 10:35:36,725 INFO L276 IsEmpty]: Start isEmpty. Operand 48909 states and 69698 transitions. [2022-11-20 10:35:36,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-11-20 10:35:36,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:36,771 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:35:36,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 (19)] Ended with exit code 0 [2022-11-20 10:35:36,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:35:36,987 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:36,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:36,987 INFO L85 PathProgramCache]: Analyzing trace with hash 231460470, now seen corresponding path program 1 times [2022-11-20 10:35:36,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:36,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475258739] [2022-11-20 10:35:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:36,989 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 10:35:36,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:36,990 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:35:37,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 (20)] Waiting until timeout for monitored process [2022-11-20 10:35:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:40,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 3036 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 10:35:40,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:41,875 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 10:35:41,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:41,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:41,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475258739] [2022-11-20 10:35:41,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475258739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:41,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:41,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:35:41,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014749343] [2022-11-20 10:35:41,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:41,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:35:41,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:41,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:35:41,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:35:41,881 INFO L87 Difference]: Start difference. First operand 48909 states and 69698 transitions. Second operand has 8 states, 8 states have (on average 24.0) internal successors, (192), 7 states have internal predecessors, (192), 5 states have call successors, (50), 4 states have call predecessors, (50), 5 states have return successors, (44), 6 states have call predecessors, (44), 5 states have call successors, (44) [2022-11-20 10:36:45,467 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 10:37:07,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:07,242 INFO L93 Difference]: Finished difference Result 117109 states and 166952 transitions. [2022-11-20 10:37:07,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:37:07,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.0) internal successors, (192), 7 states have internal predecessors, (192), 5 states have call successors, (50), 4 states have call predecessors, (50), 5 states have return successors, (44), 6 states have call predecessors, (44), 5 states have call successors, (44) Word has length 403 [2022-11-20 10:37:07,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:07,667 INFO L225 Difference]: With dead ends: 117109 [2022-11-20 10:37:07,667 INFO L226 Difference]: Without dead ends: 68235 [2022-11-20 10:37:07,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:37:07,828 INFO L413 NwaCegarLoop]: 2356 mSDtfsCounter, 6004 mSDsluCounter, 7683 mSDsCounter, 0 mSdLazyCounter, 17284 mSolverCounterSat, 3461 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6573 SdHoareTripleChecker+Valid, 10039 SdHoareTripleChecker+Invalid, 20746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3461 IncrementalHoareTripleChecker+Valid, 17284 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:07,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6573 Valid, 10039 Invalid, 20746 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3461 Valid, 17284 Invalid, 1 Unknown, 0 Unchecked, 78.3s Time] [2022-11-20 10:37:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68235 states. [2022-11-20 10:37:13,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68235 to 68036. [2022-11-20 10:37:13,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68036 states, 45193 states have (on average 1.2778748921293122) internal successors, (57751), 46804 states have internal predecessors, (57751), 18847 states have call successors, (18847), 3800 states have call predecessors, (18847), 3995 states have return successors, (20216), 18498 states have call predecessors, (20216), 18846 states have call successors, (20216) [2022-11-20 10:37:13,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68036 states to 68036 states and 96814 transitions. [2022-11-20 10:37:13,730 INFO L78 Accepts]: Start accepts. Automaton has 68036 states and 96814 transitions. Word has length 403 [2022-11-20 10:37:13,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:13,731 INFO L495 AbstractCegarLoop]: Abstraction has 68036 states and 96814 transitions. [2022-11-20 10:37:13,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.0) internal successors, (192), 7 states have internal predecessors, (192), 5 states have call successors, (50), 4 states have call predecessors, (50), 5 states have return successors, (44), 6 states have call predecessors, (44), 5 states have call successors, (44) [2022-11-20 10:37:13,731 INFO L276 IsEmpty]: Start isEmpty. Operand 68036 states and 96814 transitions. [2022-11-20 10:37:13,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-20 10:37:13,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:13,805 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:37:13,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 (20)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:14,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:37:14,006 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:14,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1099612397, now seen corresponding path program 1 times [2022-11-20 10:37:14,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:14,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036433553] [2022-11-20 10:37:14,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:14,009 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 10:37:14,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:14,010 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 10:37:14,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a198f5-d28c-40fa-a868-461dc0dfc0bd/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 (21)] Waiting until timeout for monitored process [2022-11-20 10:37:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:17,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 10:37:17,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-11-20 10:37:19,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:37:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-20 10:37:20,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:20,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036433553] [2022-11-20 10:37:20,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036433553] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:37:20,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:37:20,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-20 10:37:20,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257685897] [2022-11-20 10:37:20,675 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:37:20,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:37:20,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:20,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:37:20,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:37:20,677 INFO L87 Difference]: Start difference. First operand 68036 states and 96814 transitions. Second operand has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 11 states have internal predecessors, (238), 7 states have call successors, (79), 6 states have call predecessors, (79), 6 states have return successors, (72), 7 states have call predecessors, (72), 7 states have call successors, (72) [2022-11-20 10:39:27,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:40:36,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:36,383 INFO L93 Difference]: Finished difference Result 221685 states and 319126 transitions. [2022-11-20 10:40:36,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:40:36,383 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 11 states have internal predecessors, (238), 7 states have call successors, (79), 6 states have call predecessors, (79), 6 states have return successors, (72), 7 states have call predecessors, (72), 7 states have call successors, (72) Word has length 404 [2022-11-20 10:40:36,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:37,426 INFO L225 Difference]: With dead ends: 221685 [2022-11-20 10:40:37,426 INFO L226 Difference]: Without dead ends: 153684 [2022-11-20 10:40:37,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 801 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=231, Invalid=891, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 10:40:37,904 INFO L413 NwaCegarLoop]: 3060 mSDtfsCounter, 17816 mSDsluCounter, 13240 mSDsCounter, 0 mSdLazyCounter, 38149 mSolverCounterSat, 12705 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 163.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18629 SdHoareTripleChecker+Valid, 16300 SdHoareTripleChecker+Invalid, 50855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 12705 IncrementalHoareTripleChecker+Valid, 38149 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 177.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:37,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18629 Valid, 16300 Invalid, 50855 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [12705 Valid, 38149 Invalid, 1 Unknown, 0 Unchecked, 177.7s Time] [2022-11-20 10:40:38,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153684 states.