./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-32_7a-drivers--power--bq2415x_charger.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_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 b25f9963439cd615a7d1d4e0c139938ebd46311bccf69b593265dc59a80b8946 --- 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 11:58:38,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:58:38,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:58:38,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:58:38,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:58:38,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:58:38,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:58:38,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:58:38,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:58:38,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:58:38,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:58:38,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:58:38,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:58:38,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:58:38,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:58:38,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:58:38,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:58:38,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:58:38,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:58:38,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:58:38,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:58:38,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:58:38,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:58:38,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:58:38,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:58:38,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:58:38,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:58:38,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:58:38,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:58:38,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:58:38,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:58:38,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:58:38,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:58:38,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:58:38,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:58:38,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:58:38,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:58:38,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:58:38,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:58:38,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:58:38,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:58:38,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:58:38,738 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:58:38,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:58:38,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:58:38,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:58:38,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:58:38,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:58:38,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:58:38,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:58:38,741 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:58:38,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:58:38,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:58:38,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:58:38,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:58:38,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:58:38,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:58:38,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:58:38,743 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:58:38,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:58:38,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:58:38,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:58:38,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:58:38,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:58:38,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:58:38,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:58:38,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:58:38,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:58:38,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:58:38,746 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:58:38,746 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:58:38,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:58:38,747 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_713ce85e-3c9a-4b74-bf91-214aedcb263e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b25f9963439cd615a7d1d4e0c139938ebd46311bccf69b593265dc59a80b8946 [2022-11-20 11:58:39,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:58:39,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:58:39,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:58:39,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:58:39,082 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:58:39,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i [2022-11-20 11:58:42,359 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:58:43,006 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:58:43,007 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i [2022-11-20 11:58:43,050 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/data/827ec1522/a130b5a13ffb4539bbf728cd56578328/FLAGdfed3b94e [2022-11-20 11:58:43,070 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/data/827ec1522/a130b5a13ffb4539bbf728cd56578328 [2022-11-20 11:58:43,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:58:43,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:58:43,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:58:43,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:58:43,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:58:43,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:58:43" (1/1) ... [2022-11-20 11:58:43,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4b20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:43, skipping insertion in model container [2022-11-20 11:58:43,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:58:43" (1/1) ... [2022-11-20 11:58:43,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:58:43,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:58:44,367 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.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) 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: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.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:675) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1469) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) 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:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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 11:58:44,377 INFO L158 Benchmark]: Toolchain (without parser) took 1300.27ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 101.0MB in the beginning and 144.6MB in the end (delta: -43.6MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2022-11-20 11:58:44,378 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 155.2MB. Free memory was 97.0MB in the beginning and 96.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:58:44,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1297.46ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 101.0MB in the beginning and 144.6MB in the end (delta: -43.6MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2022-11-20 11:58:44,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 155.2MB. Free memory was 97.0MB in the beginning and 96.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1297.46ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 101.0MB in the beginning and 144.6MB in the end (delta: -43.6MB). Peak memory consumption was 48.8MB. 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_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 b25f9963439cd615a7d1d4e0c139938ebd46311bccf69b593265dc59a80b8946 --- 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 11:58:46,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:58:46,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:58:46,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:58:46,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:58:46,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:58:46,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:58:46,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:58:46,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:58:46,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:58:46,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:58:46,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:58:46,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:58:46,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:58:46,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:58:46,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:58:46,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:58:46,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:58:46,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:58:46,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:58:46,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:58:46,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:58:46,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:58:47,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:58:47,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:58:47,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:58:47,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:58:47,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:58:47,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:58:47,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:58:47,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:58:47,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:58:47,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:58:47,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:58:47,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:58:47,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:58:47,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:58:47,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:58:47,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:58:47,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:58:47,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:58:47,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:58:47,088 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:58:47,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:58:47,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:58:47,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:58:47,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:58:47,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:58:47,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:58:47,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:58:47,093 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:58:47,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:58:47,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:58:47,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:58:47,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:58:47,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:58:47,096 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:58:47,096 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:58:47,096 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:58:47,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:58:47,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:58:47,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:58:47,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:58:47,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:58:47,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:58:47,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:58:47,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:58:47,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:58:47,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:58:47,099 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:58:47,099 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:58:47,099 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:58:47,100 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:58:47,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:58:47,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:58:47,101 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_713ce85e-3c9a-4b74-bf91-214aedcb263e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b25f9963439cd615a7d1d4e0c139938ebd46311bccf69b593265dc59a80b8946 [2022-11-20 11:58:47,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:58:47,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:58:47,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:58:47,604 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:58:47,605 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:58:47,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i [2022-11-20 11:58:50,846 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:58:51,584 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:58:51,585 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i [2022-11-20 11:58:51,624 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/data/f9eb21f76/e6cfb821d3e444469de806c890c7b8fe/FLAG766f909b9 [2022-11-20 11:58:51,645 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/data/f9eb21f76/e6cfb821d3e444469de806c890c7b8fe [2022-11-20 11:58:51,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:58:51,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:58:51,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:58:51,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:58:51,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:58:51,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:58:51" (1/1) ... [2022-11-20 11:58:51,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fb4255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:51, skipping insertion in model container [2022-11-20 11:58:51,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:58:51" (1/1) ... [2022-11-20 11:58:51,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:58:51,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:58:54,056 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_713ce85e-3c9a-4b74-bf91-214aedcb263e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i[216479,216492] [2022-11-20 11:58:54,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:58:54,364 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:58:54,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:58:54,699 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_713ce85e-3c9a-4b74-bf91-214aedcb263e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i[216479,216492] [2022-11-20 11:58:54,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:58:54,741 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:58:55,064 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_713ce85e-3c9a-4b74-bf91-214aedcb263e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i[216479,216492] [2022-11-20 11:58:55,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:58:55,316 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:58:55,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55 WrapperNode [2022-11-20 11:58:55,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:58:55,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:58:55,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:58:55,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:58:55,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:55,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:55,658 INFO L138 Inliner]: procedures = 284, calls = 2183, calls flagged for inlining = 94, calls inlined = 86, statements flattened = 4164 [2022-11-20 11:58:55,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:58:55,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:58:55,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:58:55,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:58:55,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:55,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:55,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:55,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:55,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:55,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:56,018 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:56,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:56,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:58:56,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:58:56,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:58:56,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:58:56,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (1/1) ... [2022-11-20 11:58:56,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:58:56,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:58:56,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:58:56,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:58:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify [2022-11-20 11:58:56,215 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify [2022-11-20 11:58:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:58:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_read [2022-11-20 11:58:56,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_read [2022-11-20 11:58:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:58:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-20 11:58:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:58:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:58:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:58:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:58:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:58:56,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:58:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-20 11:58:56,217 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-20 11:58:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:58:56,218 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:58:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_read_mask [2022-11-20 11:58:56,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_read_mask [2022-11-20 11:58:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:58:56,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:58:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_reset_chip [2022-11-20 11:58:56,220 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_reset_chip [2022-11-20 11:58:56,220 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-20 11:58:56,220 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-20 11:58:56,220 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_set_enable [2022-11-20 11:58:56,221 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_set_enable [2022-11-20 11:58:56,221 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_exit [2022-11-20 11:58:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_exit [2022-11-20 11:58:56,222 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 11:58:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 11:58:56,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 11:58:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 11:58:56,223 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-20 11:58:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-20 11:58:56,224 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_current_limit [2022-11-20 11:58:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_current_limit [2022-11-20 11:58:56,224 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:58:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:58:56,225 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_write_mask [2022-11-20 11:58:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_write_mask [2022-11-20 11:58:56,225 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_show_enable [2022-11-20 11:58:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_show_enable [2022-11-20 11:58:56,226 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_write_bit [2022-11-20 11:58:56,226 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_write_bit [2022-11-20 11:58:56,226 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 11:58:56,226 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 11:58:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_charge_current [2022-11-20 11:58:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_charge_current [2022-11-20 11:58:56,227 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_timer_work [2022-11-20 11:58:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_timer_work [2022-11-20 11:58:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_write [2022-11-20 11:58:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_write [2022-11-20 11:58:56,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:58:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_bq2415x_id_mutex [2022-11-20 11:58:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_bq2415x_id_mutex [2022-11-20 11:58:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_show_limit [2022-11-20 11:58:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_show_limit [2022-11-20 11:58:56,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:58:56,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:58:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:58:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_detect_chip [2022-11-20 11:58:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_detect_chip [2022-11-20 11:58:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:58:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-11-20 11:58:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-11-20 11:58:56,231 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_autotimer [2022-11-20 11:58:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_autotimer [2022-11-20 11:58:56,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:58:56,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:58:56,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:58:56,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:58:56,234 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-11-20 11:58:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-11-20 11:58:56,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:58:56,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:58:56,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:58:56,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:58:56,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:58:56,236 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_weak_battery_voltage [2022-11-20 11:58:56,236 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_weak_battery_voltage [2022-11-20 11:58:56,236 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_defaults [2022-11-20 11:58:56,237 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_defaults [2022-11-20 11:58:56,238 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_read_bit [2022-11-20 11:58:56,238 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_read_bit [2022-11-20 11:58:56,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_bq2415x_i2c_mutex [2022-11-20 11:58:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_bq2415x_i2c_mutex [2022-11-20 11:58:56,243 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-20 11:58:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-20 11:58:56,243 INFO L130 BoogieDeclarations]: Found specification of procedure to_acpi_node [2022-11-20 11:58:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure to_acpi_node [2022-11-20 11:58:56,244 INFO L130 BoogieDeclarations]: Found specification of procedure device_property_read_u32 [2022-11-20 11:58:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure device_property_read_u32 [2022-11-20 11:58:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_device_handle [2022-11-20 11:58:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_device_handle [2022-11-20 11:58:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_bq2415x_i2c_mutex [2022-11-20 11:58:56,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_bq2415x_i2c_mutex [2022-11-20 11:58:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:58:56,246 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:58:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_termination_current [2022-11-20 11:58:56,247 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_termination_current [2022-11-20 11:58:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:58:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:58:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:58:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-11-20 11:58:56,248 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-11-20 11:58:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:58:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:58:56,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:58:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure power_supply_put [2022-11-20 11:58:56,249 INFO L138 BoogieDeclarations]: Found implementation of procedure power_supply_put [2022-11-20 11:58:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_timer_error [2022-11-20 11:58:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_timer_error [2022-11-20 11:58:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_battery_regulation_voltage [2022-11-20 11:58:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_battery_regulation_voltage [2022-11-20 11:58:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 11:58:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 11:58:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:58:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 11:58:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 11:58:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:58:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure power_supply_get_drvdata [2022-11-20 11:58:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure power_supply_get_drvdata [2022-11-20 11:58:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_bq2415x_id_mutex [2022-11-20 11:58:56,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_bq2415x_id_mutex [2022-11-20 11:58:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:58:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_bq2415x_timer_mutex [2022-11-20 11:58:56,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_bq2415x_timer_mutex [2022-11-20 11:58:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:58:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:58:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_mode [2022-11-20 11:58:56,266 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_mode [2022-11-20 11:58:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:58:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_set_limit [2022-11-20 11:58:56,267 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_set_limit [2022-11-20 11:58:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 11:58:56,267 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 11:58:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_power_supply_exit [2022-11-20 11:58:56,268 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_power_supply_exit [2022-11-20 11:58:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_show_status [2022-11-20 11:58:56,268 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_show_status [2022-11-20 11:58:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_print_reg [2022-11-20 11:58:56,268 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_print_reg [2022-11-20 11:58:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_bq2415x_timer_mutex [2022-11-20 11:58:56,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_bq2415x_timer_mutex [2022-11-20 11:58:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-20 11:58:56,269 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-20 11:58:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-20 11:58:56,269 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-20 11:58:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:58:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:58:56,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:58:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_exec_command [2022-11-20 11:58:56,270 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_exec_command [2022-11-20 11:58:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 11:58:56,271 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 11:58:57,323 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:58:57,327 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:59:03,495 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:02:37,523 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:02:37,553 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:02:37,556 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:02:37,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:02:37 BoogieIcfgContainer [2022-11-20 12:02:37,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:02:37,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:02:37,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:02:37,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:02:37,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:58:51" (1/3) ... [2022-11-20 12:02:37,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d536007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:02:37, skipping insertion in model container [2022-11-20 12:02:37,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:58:55" (2/3) ... [2022-11-20 12:02:37,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d536007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:02:37, skipping insertion in model container [2022-11-20 12:02:37,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:02:37" (3/3) ... [2022-11-20 12:02:37,576 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i [2022-11-20 12:02:37,603 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:02:37,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:02:37,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:02:37,724 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;@55e64250, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:02:37,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:02:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 1445 states, 1013 states have (on average 1.4343534057255676) internal successors, (1453), 1063 states have internal predecessors, (1453), 369 states have call successors, (369), 62 states have call predecessors, (369), 61 states have return successors, (348), 337 states have call predecessors, (348), 348 states have call successors, (348) [2022-11-20 12:02:37,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2022-11-20 12:02:37,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:37,805 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:37,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:37,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:37,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1173860, now seen corresponding path program 1 times [2022-11-20 12:02:37,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:37,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24638265] [2022-11-20 12:02:37,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:37,845 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 12:02:37,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:37,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:02:37,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:02:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:44,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 5524 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:02:44,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 11250 backedges. 4371 proven. 0 refuted. 0 times theorem prover too weak. 6879 trivial. 0 not checked. [2022-11-20 12:02:44,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:02:44,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:44,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24638265] [2022-11-20 12:02:44,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24638265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:02:44,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:02:44,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:02:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480114623] [2022-11-20 12:02:44,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:44,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:02:44,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:44,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:02:44,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:02:44,635 INFO L87 Difference]: Start difference. First operand has 1445 states, 1013 states have (on average 1.4343534057255676) internal successors, (1453), 1063 states have internal predecessors, (1453), 369 states have call successors, (369), 62 states have call predecessors, (369), 61 states have return successors, (348), 337 states have call predecessors, (348), 348 states have call successors, (348) Second operand has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-20 12:02:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:44,871 INFO L93 Difference]: Finished difference Result 2885 states and 4578 transitions. [2022-11-20 12:02:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:02:44,873 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 743 [2022-11-20 12:02:44,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:44,913 INFO L225 Difference]: With dead ends: 2885 [2022-11-20 12:02:44,913 INFO L226 Difference]: Without dead ends: 1417 [2022-11-20 12:02:44,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 742 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 12:02:44,938 INFO L413 NwaCegarLoop]: 2154 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, 2154 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 12:02:44,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:02:44,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2022-11-20 12:02:45,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1417. [2022-11-20 12:02:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1008 states have (on average 1.4117063492063493) internal successors, (1423), 1035 states have internal predecessors, (1423), 348 states have call successors, (348), 61 states have call predecessors, (348), 60 states have return successors, (336), 325 states have call predecessors, (336), 336 states have call successors, (336) [2022-11-20 12:02:45,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 2107 transitions. [2022-11-20 12:02:45,141 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 2107 transitions. Word has length 743 [2022-11-20 12:02:45,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:45,144 INFO L495 AbstractCegarLoop]: Abstraction has 1417 states and 2107 transitions. [2022-11-20 12:02:45,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-20 12:02:45,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 2107 transitions. [2022-11-20 12:02:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2022-11-20 12:02:45,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:45,179 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:45,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:02:45,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:02:45,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:45,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:45,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1340770068, now seen corresponding path program 1 times [2022-11-20 12:02:45,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:45,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167058886] [2022-11-20 12:02:45,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:45,409 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 12:02:45,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:45,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:02:45,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:02:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:56,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 5524 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:02:56,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 11250 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 11195 trivial. 0 not checked. [2022-11-20 12:02:57,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:02:57,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:57,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167058886] [2022-11-20 12:02:57,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167058886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:02:57,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:02:57,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:02:57,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293929328] [2022-11-20 12:02:57,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:57,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:02:57,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:57,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:02:57,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:02:57,098 INFO L87 Difference]: Start difference. First operand 1417 states and 2107 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:02:57,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:57,692 INFO L93 Difference]: Finished difference Result 2754 states and 4105 transitions. [2022-11-20 12:02:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:02:57,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 743 [2022-11-20 12:02:57,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:57,706 INFO L225 Difference]: With dead ends: 2754 [2022-11-20 12:02:57,706 INFO L226 Difference]: Without dead ends: 1418 [2022-11-20 12:02:57,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:02:57,715 INFO L413 NwaCegarLoop]: 2105 mSDtfsCounter, 3 mSDsluCounter, 4185 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6290 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:57,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6290 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:02:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2022-11-20 12:02:57,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1418. [2022-11-20 12:02:57,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1009 states have (on average 1.4112983151635283) internal successors, (1424), 1036 states have internal predecessors, (1424), 348 states have call successors, (348), 61 states have call predecessors, (348), 60 states have return successors, (336), 325 states have call predecessors, (336), 336 states have call successors, (336) [2022-11-20 12:02:57,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 2108 transitions. [2022-11-20 12:02:57,881 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 2108 transitions. Word has length 743 [2022-11-20 12:02:57,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:57,884 INFO L495 AbstractCegarLoop]: Abstraction has 1418 states and 2108 transitions. [2022-11-20 12:02:57,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:02:57,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 2108 transitions. [2022-11-20 12:02:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2022-11-20 12:02:57,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:57,894 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:58,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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)] Ended with exit code 0 [2022-11-20 12:02:58,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:02:58,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:58,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:58,120 INFO L85 PathProgramCache]: Analyzing trace with hash -941728500, now seen corresponding path program 1 times [2022-11-20 12:02:58,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:58,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476433919] [2022-11-20 12:02:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:58,125 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 12:02:58,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:58,132 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:02:58,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:03:08,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 5656 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:03:08,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:03:09,343 INFO L134 CoverageAnalysis]: Checked inductivity of 11460 backedges. 88 proven. 1 refuted. 0 times theorem prover too weak. 11371 trivial. 0 not checked. [2022-11-20 12:03:09,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:03:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 11460 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 11382 trivial. 0 not checked. [2022-11-20 12:03:10,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:03:10,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476433919] [2022-11-20 12:03:10,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476433919] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:03:10,824 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:03:10,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 12:03:10,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577276210] [2022-11-20 12:03:10,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:03:10,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:03:10,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:03:10,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:03:10,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:03:10,828 INFO L87 Difference]: Start difference. First operand 1418 states and 2108 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-11-20 12:03:11,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:03:11,951 INFO L93 Difference]: Finished difference Result 2761 states and 4125 transitions. [2022-11-20 12:03:11,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:03:11,952 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 755 [2022-11-20 12:03:11,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:03:11,964 INFO L225 Difference]: With dead ends: 2761 [2022-11-20 12:03:11,964 INFO L226 Difference]: Without dead ends: 1421 [2022-11-20 12:03:11,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1510 GetRequests, 1502 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:03:11,974 INFO L413 NwaCegarLoop]: 2105 mSDtfsCounter, 16 mSDsluCounter, 4190 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6295 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:03:11,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6295 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 12:03:11,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2022-11-20 12:03:12,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1421. [2022-11-20 12:03:12,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1012 states have (on average 1.4100790513833992) internal successors, (1427), 1039 states have internal predecessors, (1427), 348 states have call successors, (348), 61 states have call predecessors, (348), 60 states have return successors, (336), 325 states have call predecessors, (336), 336 states have call successors, (336) [2022-11-20 12:03:12,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 2111 transitions. [2022-11-20 12:03:12,038 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 2111 transitions. Word has length 755 [2022-11-20 12:03:12,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:03:12,040 INFO L495 AbstractCegarLoop]: Abstraction has 1421 states and 2111 transitions. [2022-11-20 12:03:12,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-11-20 12:03:12,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 2111 transitions. [2022-11-20 12:03:12,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2022-11-20 12:03:12,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:03:12,049 INFO L195 NwaCegarLoop]: trace histogram [48, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:12,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:03:12,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:12,262 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:03:12,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:03:12,263 INFO L85 PathProgramCache]: Analyzing trace with hash 544727572, now seen corresponding path program 2 times [2022-11-20 12:03:12,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:03:12,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054783865] [2022-11-20 12:03:12,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:03:12,268 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 12:03:12,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:03:12,270 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:12,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:17,133 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:03:17,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:03:17,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 3361 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:03:17,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:03:17,582 INFO L134 CoverageAnalysis]: Checked inductivity of 12954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12954 trivial. 0 not checked. [2022-11-20 12:03:17,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:03:17,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:03:17,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054783865] [2022-11-20 12:03:17,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054783865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:03:17,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:03:17,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:03:17,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760907127] [2022-11-20 12:03:17,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:03:17,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:03:17,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:03:17,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:03:17,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:03:17,586 INFO L87 Difference]: Start difference. First operand 1421 states and 2111 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:03:18,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:03:18,174 INFO L93 Difference]: Finished difference Result 3700 states and 5517 transitions. [2022-11-20 12:03:18,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:03:18,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 791 [2022-11-20 12:03:18,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:03:18,190 INFO L225 Difference]: With dead ends: 3700 [2022-11-20 12:03:18,191 INFO L226 Difference]: Without dead ends: 2396 [2022-11-20 12:03:18,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 790 GetRequests, 789 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 12:03:18,199 INFO L413 NwaCegarLoop]: 2321 mSDtfsCounter, 1619 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 4254 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:03:18,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 4254 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:03:18,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2022-11-20 12:03:18,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2373. [2022-11-20 12:03:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2373 states, 1702 states have (on average 1.4294947121034078) internal successors, (2433), 1743 states have internal predecessors, (2433), 563 states have call successors, (563), 108 states have call predecessors, (563), 107 states have return successors, (551), 528 states have call predecessors, (551), 551 states have call successors, (551) [2022-11-20 12:03:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 3547 transitions. [2022-11-20 12:03:18,309 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 3547 transitions. Word has length 791 [2022-11-20 12:03:18,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:03:18,311 INFO L495 AbstractCegarLoop]: Abstraction has 2373 states and 3547 transitions. [2022-11-20 12:03:18,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:03:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 3547 transitions. [2022-11-20 12:03:18,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2022-11-20 12:03:18,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:03:18,319 INFO L195 NwaCegarLoop]: trace histogram [48, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:18,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:18,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:18,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:03:18,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:03:18,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1833220878, now seen corresponding path program 1 times [2022-11-20 12:03:18,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:03:18,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228594365] [2022-11-20 12:03:18,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:03:18,539 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 12:03:18,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:03:18,540 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:18,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:03:30,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 6016 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:03:30,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:03:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 12954 backedges. 319 proven. 10 refuted. 0 times theorem prover too weak. 12625 trivial. 0 not checked. [2022-11-20 12:03:31,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:03:34,577 INFO L134 CoverageAnalysis]: Checked inductivity of 12954 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 12636 trivial. 0 not checked. [2022-11-20 12:03:34,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:03:34,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228594365] [2022-11-20 12:03:34,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228594365] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:03:34,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:03:34,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-20 12:03:34,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429448073] [2022-11-20 12:03:34,579 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:03:34,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 12:03:34,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:03:34,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 12:03:34,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:03:34,582 INFO L87 Difference]: Start difference. First operand 2373 states and 3547 transitions. Second operand has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-11-20 12:03:37,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:03:37,829 INFO L93 Difference]: Finished difference Result 4672 states and 7005 transitions. [2022-11-20 12:03:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:03:37,831 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 793 [2022-11-20 12:03:37,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:03:37,852 INFO L225 Difference]: With dead ends: 4672 [2022-11-20 12:03:37,852 INFO L226 Difference]: Without dead ends: 2377 [2022-11-20 12:03:37,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1587 GetRequests, 1572 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:03:37,867 INFO L413 NwaCegarLoop]: 2105 mSDtfsCounter, 21 mSDsluCounter, 14652 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 16757 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:03:37,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 16757 Invalid, 173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 12:03:37,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2377 states. [2022-11-20 12:03:37,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2377 to 2377. [2022-11-20 12:03:37,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2377 states, 1706 states have (on average 1.428487690504103) internal successors, (2437), 1747 states have internal predecessors, (2437), 563 states have call successors, (563), 108 states have call predecessors, (563), 107 states have return successors, (551), 528 states have call predecessors, (551), 551 states have call successors, (551) [2022-11-20 12:03:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2377 states to 2377 states and 3551 transitions. [2022-11-20 12:03:37,988 INFO L78 Accepts]: Start accepts. Automaton has 2377 states and 3551 transitions. Word has length 793 [2022-11-20 12:03:37,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:03:37,990 INFO L495 AbstractCegarLoop]: Abstraction has 2377 states and 3551 transitions. [2022-11-20 12:03:37,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-11-20 12:03:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2377 states and 3551 transitions. [2022-11-20 12:03:38,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2022-11-20 12:03:38,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:03:38,005 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:38,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:38,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:38,206 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:03:38,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:03:38,207 INFO L85 PathProgramCache]: Analyzing trace with hash 8577010, now seen corresponding path program 2 times [2022-11-20 12:03:38,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:03:38,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169253253] [2022-11-20 12:03:38,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:03:38,213 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 12:03:38,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:03:38,215 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:38,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:43,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:03:43,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:03:43,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 3325 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:03:43,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:03:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:03:58,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:03:58,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:03:58,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169253253] [2022-11-20 12:03:58,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169253253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:03:58,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:03:58,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:03:58,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862702845] [2022-11-20 12:03:58,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:03:58,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:03:58,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:03:58,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:03:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:03:58,227 INFO L87 Difference]: Start difference. First operand 2377 states and 3551 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:03:58,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:03:58,395 INFO L93 Difference]: Finished difference Result 2387 states and 3557 transitions. [2022-11-20 12:03:58,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:03:58,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 841 [2022-11-20 12:03:58,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:03:58,413 INFO L225 Difference]: With dead ends: 2387 [2022-11-20 12:03:58,413 INFO L226 Difference]: Without dead ends: 2383 [2022-11-20 12:03:58,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 839 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 12:03:58,416 INFO L413 NwaCegarLoop]: 2103 mSDtfsCounter, 1886 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:03:58,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 2127 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:03:58,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2022-11-20 12:03:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2381. [2022-11-20 12:03:58,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 1710 states have (on average 1.4257309941520468) internal successors, (2438), 1749 states have internal predecessors, (2438), 561 states have call successors, (561), 110 states have call predecessors, (561), 109 states have return successors, (551), 528 states have call predecessors, (551), 551 states have call successors, (551) [2022-11-20 12:03:58,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3550 transitions. [2022-11-20 12:03:58,636 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3550 transitions. Word has length 841 [2022-11-20 12:03:58,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:03:58,637 INFO L495 AbstractCegarLoop]: Abstraction has 2381 states and 3550 transitions. [2022-11-20 12:03:58,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:03:58,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3550 transitions. [2022-11-20 12:03:58,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2022-11-20 12:03:58,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:03:58,648 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:58,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:58,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:58,863 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:03:58,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:03:58,864 INFO L85 PathProgramCache]: Analyzing trace with hash 265194166, now seen corresponding path program 1 times [2022-11-20 12:03:58,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:03:58,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823829784] [2022-11-20 12:03:58,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:03:58,870 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 12:03:58,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:03:58,871 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:03:58,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:04:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:28,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 6545 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:04:28,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:04:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:04:28,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:04:28,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:04:28,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823829784] [2022-11-20 12:04:28,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823829784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:28,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:28,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:04:28,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618297341] [2022-11-20 12:04:28,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:28,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:28,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:04:28,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:28,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:28,386 INFO L87 Difference]: Start difference. First operand 2381 states and 3550 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:04:30,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:04:31,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:04:31,727 INFO L93 Difference]: Finished difference Result 6754 states and 10107 transitions. [2022-11-20 12:04:31,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:31,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 842 [2022-11-20 12:04:31,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:04:31,762 INFO L225 Difference]: With dead ends: 6754 [2022-11-20 12:04:31,762 INFO L226 Difference]: Without dead ends: 4494 [2022-11-20 12:04:31,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 840 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 12:04:31,780 INFO L413 NwaCegarLoop]: 2753 mSDtfsCounter, 1807 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 4842 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:04:31,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 4842 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 12:04:31,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4494 states. [2022-11-20 12:04:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4494 to 4487. [2022-11-20 12:04:32,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4487 states, 3260 states have (on average 1.4423312883435584) internal successors, (4702), 3328 states have internal predecessors, (4702), 1013 states have call successors, (1013), 214 states have call predecessors, (1013), 213 states have return successors, (1003), 958 states have call predecessors, (1003), 1003 states have call successors, (1003) [2022-11-20 12:04:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4487 states to 4487 states and 6718 transitions. [2022-11-20 12:04:32,219 INFO L78 Accepts]: Start accepts. Automaton has 4487 states and 6718 transitions. Word has length 842 [2022-11-20 12:04:32,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:04:32,221 INFO L495 AbstractCegarLoop]: Abstraction has 4487 states and 6718 transitions. [2022-11-20 12:04:32,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:04:32,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4487 states and 6718 transitions. [2022-11-20 12:04:32,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2022-11-20 12:04:32,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:04:32,232 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:32,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:04:32,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:04:32,455 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:04:32,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:32,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1169915663, now seen corresponding path program 1 times [2022-11-20 12:04:32,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:04:32,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376214012] [2022-11-20 12:04:32,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:32,461 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 12:04:32,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:04:32,463 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:04:32,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:05:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:01,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 6554 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:05:01,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:05:24,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:24,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:05:24,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376214012] [2022-11-20 12:05:24,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376214012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:24,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:24,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:05:24,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464792338] [2022-11-20 12:05:24,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:24,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:05:24,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:05:24,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:05:24,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:24,968 INFO L87 Difference]: Start difference. First operand 4487 states and 6718 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:05:25,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:25,372 INFO L93 Difference]: Finished difference Result 4497 states and 6724 transitions. [2022-11-20 12:05:25,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:05:25,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 845 [2022-11-20 12:05:25,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:25,403 INFO L225 Difference]: With dead ends: 4497 [2022-11-20 12:05:25,403 INFO L226 Difference]: Without dead ends: 4493 [2022-11-20 12:05:25,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 844 GetRequests, 843 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:25,407 INFO L413 NwaCegarLoop]: 2097 mSDtfsCounter, 1872 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:25,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 2127 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:05:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4493 states. [2022-11-20 12:05:25,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4493 to 4491. [2022-11-20 12:05:25,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4491 states, 3264 states have (on average 1.4408700980392157) internal successors, (4703), 3330 states have internal predecessors, (4703), 1011 states have call successors, (1011), 216 states have call predecessors, (1011), 215 states have return successors, (1003), 958 states have call predecessors, (1003), 1003 states have call successors, (1003) [2022-11-20 12:05:25,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4491 states to 4491 states and 6717 transitions. [2022-11-20 12:05:25,758 INFO L78 Accepts]: Start accepts. Automaton has 4491 states and 6717 transitions. Word has length 845 [2022-11-20 12:05:25,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:25,760 INFO L495 AbstractCegarLoop]: Abstraction has 4491 states and 6717 transitions. [2022-11-20 12:05:25,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:05:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4491 states and 6717 transitions. [2022-11-20 12:05:25,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2022-11-20 12:05:25,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:25,771 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:25,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:05:25,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:05:25,995 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:25,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:25,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1906958908, now seen corresponding path program 1 times [2022-11-20 12:05:26,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:05:26,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589891858] [2022-11-20 12:05:26,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:26,002 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 12:05:26,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:05:26,003 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:05:26,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:05:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:55,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 6555 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:05:55,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:19,346 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:06:19,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:19,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:19,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589891858] [2022-11-20 12:06:19,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589891858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:19,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:19,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:06:19,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109458246] [2022-11-20 12:06:19,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:19,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:06:19,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:06:19,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:06:19,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:06:19,350 INFO L87 Difference]: Start difference. First operand 4491 states and 6717 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:06:19,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:06:19,788 INFO L93 Difference]: Finished difference Result 5252 states and 7784 transitions. [2022-11-20 12:06:19,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:06:19,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 846 [2022-11-20 12:06:19,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:06:19,851 INFO L225 Difference]: With dead ends: 5252 [2022-11-20 12:06:19,851 INFO L226 Difference]: Without dead ends: 5248 [2022-11-20 12:06:19,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 844 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:06:19,858 INFO L413 NwaCegarLoop]: 2171 mSDtfsCounter, 1867 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:06:19,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 2472 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:06:19,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2022-11-20 12:06:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 5245. [2022-11-20 12:06:20,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 3772 states have (on average 1.4300106044538705) internal successors, (5394), 3836 states have internal predecessors, (5394), 1193 states have call successors, (1193), 280 states have call predecessors, (1193), 279 states have return successors, (1187), 1142 states have call predecessors, (1187), 1187 states have call successors, (1187) [2022-11-20 12:06:20,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 7774 transitions. [2022-11-20 12:06:20,426 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 7774 transitions. Word has length 846 [2022-11-20 12:06:20,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:20,428 INFO L495 AbstractCegarLoop]: Abstraction has 5245 states and 7774 transitions. [2022-11-20 12:06:20,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:06:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 7774 transitions. [2022-11-20 12:06:20,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 848 [2022-11-20 12:06:20,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:20,440 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:20,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:06:20,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:06:20,663 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:20,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:20,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1014499406, now seen corresponding path program 1 times [2022-11-20 12:06:20,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:20,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840280879] [2022-11-20 12:06:20,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:20,670 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 12:06:20,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:20,671 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:06:20,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:06:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:52,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 6556 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:06:52,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:07:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:07:16,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:07:16,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:07:16,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840280879] [2022-11-20 12:07:16,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840280879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:07:16,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:07:16,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:07:16,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115985112] [2022-11-20 12:07:16,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:07:16,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:07:16,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:07:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:07:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:07:16,510 INFO L87 Difference]: Start difference. First operand 5245 states and 7774 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:07:16,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:07:16,989 INFO L93 Difference]: Finished difference Result 5247 states and 7775 transitions. [2022-11-20 12:07:16,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:07:16,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 847 [2022-11-20 12:07:16,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:07:17,017 INFO L225 Difference]: With dead ends: 5247 [2022-11-20 12:07:17,018 INFO L226 Difference]: Without dead ends: 5244 [2022-11-20 12:07:17,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:07:17,022 INFO L413 NwaCegarLoop]: 2092 mSDtfsCounter, 1895 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:07:17,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1895 Valid, 2092 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:07:17,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5244 states. [2022-11-20 12:07:17,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5244 to 5244. [2022-11-20 12:07:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5244 states, 3772 states have (on average 1.429745493107105) internal successors, (5393), 3835 states have internal predecessors, (5393), 1192 states have call successors, (1192), 280 states have call predecessors, (1192), 279 states have return successors, (1187), 1142 states have call predecessors, (1187), 1187 states have call successors, (1187) [2022-11-20 12:07:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5244 states to 5244 states and 7772 transitions. [2022-11-20 12:07:17,525 INFO L78 Accepts]: Start accepts. Automaton has 5244 states and 7772 transitions. Word has length 847 [2022-11-20 12:07:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:07:17,526 INFO L495 AbstractCegarLoop]: Abstraction has 5244 states and 7772 transitions. [2022-11-20 12:07:17,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:07:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5244 states and 7772 transitions. [2022-11-20 12:07:17,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 849 [2022-11-20 12:07:17,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:07:17,538 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:17,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:07:17,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:07:17,755 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:07:17,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:17,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1385389057, now seen corresponding path program 1 times [2022-11-20 12:07:17,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:07:17,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954133116] [2022-11-20 12:07:17,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:17,762 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 12:07:17,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:07:17,764 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:07:17,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:07:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:46,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 6557 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:07:46,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:08:10,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:08:10,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:08:10,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:08:10,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954133116] [2022-11-20 12:08:10,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954133116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:10,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:10,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:08:10,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562002184] [2022-11-20 12:08:10,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:10,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:08:10,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:08:10,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:08:10,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:08:10,346 INFO L87 Difference]: Start difference. First operand 5244 states and 7772 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:08:10,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:10,893 INFO L93 Difference]: Finished difference Result 5246 states and 7773 transitions. [2022-11-20 12:08:10,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:08:10,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 848 [2022-11-20 12:08:10,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:10,917 INFO L225 Difference]: With dead ends: 5246 [2022-11-20 12:08:10,917 INFO L226 Difference]: Without dead ends: 5243 [2022-11-20 12:08:10,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 846 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:08:10,921 INFO L413 NwaCegarLoop]: 2090 mSDtfsCounter, 1892 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1892 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:10,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1892 Valid, 2090 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:08:10,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2022-11-20 12:08:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 5243. [2022-11-20 12:08:11,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 3772 states have (on average 1.4294803817603394) internal successors, (5392), 3834 states have internal predecessors, (5392), 1191 states have call successors, (1191), 280 states have call predecessors, (1191), 279 states have return successors, (1187), 1142 states have call predecessors, (1187), 1187 states have call successors, (1187) [2022-11-20 12:08:11,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 7770 transitions. [2022-11-20 12:08:11,465 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 7770 transitions. Word has length 848 [2022-11-20 12:08:11,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:11,467 INFO L495 AbstractCegarLoop]: Abstraction has 5243 states and 7770 transitions. [2022-11-20 12:08:11,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:08:11,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 7770 transitions. [2022-11-20 12:08:11,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2022-11-20 12:08:11,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:11,480 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:11,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:08:11,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:08:11,697 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:08:11,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:11,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1938517, now seen corresponding path program 1 times [2022-11-20 12:08:11,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:08:11,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350823043] [2022-11-20 12:08:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:11,704 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 12:08:11,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:08:11,706 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:08:11,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:08:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:40,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 6558 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:08:40,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:01,958 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:09:01,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:09:01,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:09:01,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350823043] [2022-11-20 12:09:01,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350823043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:01,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:01,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:09:01,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982344424] [2022-11-20 12:09:01,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:01,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:09:01,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:09:01,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:09:01,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:09:01,962 INFO L87 Difference]: Start difference. First operand 5243 states and 7770 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:09:02,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:02,311 INFO L93 Difference]: Finished difference Result 5245 states and 7771 transitions. [2022-11-20 12:09:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:09:02,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 849 [2022-11-20 12:09:02,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:02,333 INFO L225 Difference]: With dead ends: 5245 [2022-11-20 12:09:02,333 INFO L226 Difference]: Without dead ends: 5233 [2022-11-20 12:09:02,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:09:02,336 INFO L413 NwaCegarLoop]: 2089 mSDtfsCounter, 1889 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1889 SdHoareTripleChecker+Valid, 2089 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 12:09:02,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1889 Valid, 2089 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:09:02,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5233 states. [2022-11-20 12:09:02,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5233 to 5233. [2022-11-20 12:09:02,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 3763 states have (on average 1.429178846664895) internal successors, (5378), 3824 states have internal predecessors, (5378), 1190 states have call successors, (1190), 280 states have call predecessors, (1190), 279 states have return successors, (1187), 1142 states have call predecessors, (1187), 1187 states have call successors, (1187) [2022-11-20 12:09:02,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 7755 transitions. [2022-11-20 12:09:02,827 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 7755 transitions. Word has length 849 [2022-11-20 12:09:02,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:02,828 INFO L495 AbstractCegarLoop]: Abstraction has 5233 states and 7755 transitions. [2022-11-20 12:09:02,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-11-20 12:09:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 7755 transitions. [2022-11-20 12:09:02,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2022-11-20 12:09:02,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:02,840 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:02,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:09:03,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:09:03,063 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:03,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1893946040, now seen corresponding path program 1 times [2022-11-20 12:09:03,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:09:03,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948277002] [2022-11-20 12:09:03,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:03,067 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 12:09:03,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:09:03,068 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:09:03,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:09:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:09:30,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 6837 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:09:30,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:09:31,179 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:09:31,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:09:31,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:09:31,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948277002] [2022-11-20 12:09:31,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948277002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:09:31,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:09:31,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:09:31,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932960553] [2022-11-20 12:09:31,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:09:31,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:09:31,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:09:31,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:09:31,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:09:31,183 INFO L87 Difference]: Start difference. First operand 5233 states and 7755 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-20 12:09:32,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:32,355 INFO L93 Difference]: Finished difference Result 14691 states and 22013 transitions. [2022-11-20 12:09:32,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:09:32,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 873 [2022-11-20 12:09:32,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:32,403 INFO L225 Difference]: With dead ends: 14691 [2022-11-20 12:09:32,403 INFO L226 Difference]: Without dead ends: 9579 [2022-11-20 12:09:32,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 871 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 12:09:32,432 INFO L413 NwaCegarLoop]: 2373 mSDtfsCounter, 2040 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 4302 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:32,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 4302 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:09:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2022-11-20 12:09:33,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 9574. [2022-11-20 12:09:33,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9574 states, 6939 states have (on average 1.43565355238507) internal successors, (9962), 7061 states have internal predecessors, (9962), 2141 states have call successors, (2141), 510 states have call predecessors, (2141), 493 states have return successors, (2208), 2030 states have call predecessors, (2208), 2138 states have call successors, (2208) [2022-11-20 12:09:33,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9574 states to 9574 states and 14311 transitions. [2022-11-20 12:09:33,451 INFO L78 Accepts]: Start accepts. Automaton has 9574 states and 14311 transitions. Word has length 873 [2022-11-20 12:09:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:09:33,453 INFO L495 AbstractCegarLoop]: Abstraction has 9574 states and 14311 transitions. [2022-11-20 12:09:33,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-20 12:09:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 9574 states and 14311 transitions. [2022-11-20 12:09:33,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2022-11-20 12:09:33,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:09:33,466 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:33,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:09:33,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:09:33,679 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:09:33,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:09:33,680 INFO L85 PathProgramCache]: Analyzing trace with hash 684962600, now seen corresponding path program 1 times [2022-11-20 12:09:33,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:09:33,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137919173] [2022-11-20 12:09:33,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:09:33,685 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 12:09:33,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:09:33,686 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:09:33,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:10:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:00,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 6818 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:10:00,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:10:00,994 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:10:00,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:10:00,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:10:00,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137919173] [2022-11-20 12:10:00,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137919173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:00,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:00,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:10:00,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889399074] [2022-11-20 12:10:00,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:00,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:10:00,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:10:00,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:10:00,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:00,997 INFO L87 Difference]: Start difference. First operand 9574 states and 14311 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-20 12:10:02,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:02,635 INFO L93 Difference]: Finished difference Result 28346 states and 42383 transitions. [2022-11-20 12:10:02,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:10:02,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 881 [2022-11-20 12:10:02,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:02,718 INFO L225 Difference]: With dead ends: 28346 [2022-11-20 12:10:02,718 INFO L226 Difference]: Without dead ends: 18893 [2022-11-20 12:10:02,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 879 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:02,757 INFO L413 NwaCegarLoop]: 2743 mSDtfsCounter, 2020 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 4648 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:02,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 4648 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:10:02,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18893 states. [2022-11-20 12:10:04,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18893 to 18880. [2022-11-20 12:10:04,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18880 states, 13705 states have (on average 1.4381612550164173) internal successors, (19710), 13949 states have internal predecessors, (19710), 4189 states have call successors, (4189), 1018 states have call predecessors, (4189), 985 states have return successors, (4326), 3968 states have call predecessors, (4326), 4186 states have call successors, (4326) [2022-11-20 12:10:04,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18880 states to 18880 states and 28225 transitions. [2022-11-20 12:10:04,623 INFO L78 Accepts]: Start accepts. Automaton has 18880 states and 28225 transitions. Word has length 881 [2022-11-20 12:10:04,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:04,625 INFO L495 AbstractCegarLoop]: Abstraction has 18880 states and 28225 transitions. [2022-11-20 12:10:04,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-20 12:10:04,625 INFO L276 IsEmpty]: Start isEmpty. Operand 18880 states and 28225 transitions. [2022-11-20 12:10:04,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2022-11-20 12:10:04,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:04,637 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:04,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:10:04,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:10:04,859 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:04,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:04,860 INFO L85 PathProgramCache]: Analyzing trace with hash -742056738, now seen corresponding path program 1 times [2022-11-20 12:10:04,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:10:04,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674984592] [2022-11-20 12:10:04,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:04,865 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 12:10:04,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:10:04,871 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:10:04,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:10:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:31,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 6792 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:10:31,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:10:32,189 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:10:32,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:10:32,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:10:32,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674984592] [2022-11-20 12:10:32,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674984592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:32,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:32,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:10:32,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493079075] [2022-11-20 12:10:32,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:32,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:10:32,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:10:32,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:10:32,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:32,192 INFO L87 Difference]: Start difference. First operand 18880 states and 28225 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-20 12:10:35,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:35,281 INFO L93 Difference]: Finished difference Result 55768 states and 83387 transitions. [2022-11-20 12:10:35,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:10:35,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 873 [2022-11-20 12:10:35,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:35,458 INFO L225 Difference]: With dead ends: 55768 [2022-11-20 12:10:35,458 INFO L226 Difference]: Without dead ends: 37009 [2022-11-20 12:10:35,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 871 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:35,538 INFO L413 NwaCegarLoop]: 2754 mSDtfsCounter, 2000 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 4659 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:35,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 4659 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:10:35,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37009 states. [2022-11-20 12:10:38,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37009 to 37000. [2022-11-20 12:10:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37000 states, 26907 states have (on average 1.440368677295871) internal successors, (38756), 27395 states have internal predecessors, (38756), 8139 states have call successors, (8139), 2018 states have call predecessors, (8139), 1953 states have return successors, (8416), 7698 states have call predecessors, (8416), 8136 states have call successors, (8416) [2022-11-20 12:10:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37000 states to 37000 states and 55311 transitions. [2022-11-20 12:10:38,672 INFO L78 Accepts]: Start accepts. Automaton has 37000 states and 55311 transitions. Word has length 873 [2022-11-20 12:10:38,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:38,673 INFO L495 AbstractCegarLoop]: Abstraction has 37000 states and 55311 transitions. [2022-11-20 12:10:38,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-20 12:10:38,673 INFO L276 IsEmpty]: Start isEmpty. Operand 37000 states and 55311 transitions. [2022-11-20 12:10:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2022-11-20 12:10:38,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:38,686 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:38,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:10:38,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:10:38,903 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:38,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:38,903 INFO L85 PathProgramCache]: Analyzing trace with hash 218122335, now seen corresponding path program 1 times [2022-11-20 12:10:38,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:10:38,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363818547] [2022-11-20 12:10:38,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:38,907 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 12:10:38,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:10:38,908 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:10:38,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:11:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:04,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 6841 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:11:04,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:04,930 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:11:04,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:11:04,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:11:04,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363818547] [2022-11-20 12:11:04,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363818547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:04,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:11:04,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:11:04,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473376754] [2022-11-20 12:11:04,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:04,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:11:04,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:11:04,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:11:04,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:11:04,933 INFO L87 Difference]: Start difference. First operand 37000 states and 55311 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-20 12:11:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:09,692 INFO L93 Difference]: Finished difference Result 93725 states and 140872 transitions. [2022-11-20 12:11:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:11:09,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 873 [2022-11-20 12:11:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:09,959 INFO L225 Difference]: With dead ends: 93725 [2022-11-20 12:11:09,960 INFO L226 Difference]: Without dead ends: 56846 [2022-11-20 12:11:10,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 871 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 12:11:10,110 INFO L413 NwaCegarLoop]: 2359 mSDtfsCounter, 2056 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:10,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 4288 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:11:10,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56846 states. [2022-11-20 12:11:14,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56846 to 56841. [2022-11-20 12:11:14,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56841 states, 41266 states have (on average 1.436412543013619) internal successors, (59275), 41993 states have internal predecessors, (59275), 12517 states have call successors, (12517), 3122 states have call predecessors, (12517), 3057 states have return successors, (13130), 11893 states have call predecessors, (13130), 12514 states have call successors, (13130) [2022-11-20 12:11:14,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56841 states to 56841 states and 84922 transitions. [2022-11-20 12:11:14,989 INFO L78 Accepts]: Start accepts. Automaton has 56841 states and 84922 transitions. Word has length 873 [2022-11-20 12:11:14,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:14,991 INFO L495 AbstractCegarLoop]: Abstraction has 56841 states and 84922 transitions. [2022-11-20 12:11:14,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-20 12:11:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand 56841 states and 84922 transitions. [2022-11-20 12:11:15,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2022-11-20 12:11:15,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:15,005 INFO L195 NwaCegarLoop]: trace histogram [96, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:11:15,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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)] Ended with exit code 0 [2022-11-20 12:11:15,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:11:15,227 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:11:15,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:15,227 INFO L85 PathProgramCache]: Analyzing trace with hash -121676166, now seen corresponding path program 1 times [2022-11-20 12:11:15,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:11:15,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479236296] [2022-11-20 12:11:15,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:15,231 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 12:11:15,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:11:15,232 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:11:15,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713ce85e-3c9a-4b74-bf91-214aedcb263e/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 12:11:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:44,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 6843 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:11:44,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:45,148 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16962 trivial. 0 not checked. [2022-11-20 12:11:45,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:11:45,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:11:45,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479236296] [2022-11-20 12:11:45,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479236296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:45,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:11:45,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:11:45,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112188654] [2022-11-20 12:11:45,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:45,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:11:45,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:11:45,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:11:45,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:11:45,151 INFO L87 Difference]: Start difference. First operand 56841 states and 84922 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-20 12:11:51,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:51,582 INFO L93 Difference]: Finished difference Result 133407 states and 200382 transitions. [2022-11-20 12:11:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:11:51,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 874 [2022-11-20 12:11:51,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:52,151 INFO L225 Difference]: With dead ends: 133407 [2022-11-20 12:11:52,151 INFO L226 Difference]: Without dead ends: 76687 [2022-11-20 12:11:52,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 873 GetRequests, 872 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 12:11:52,347 INFO L413 NwaCegarLoop]: 2359 mSDtfsCounter, 2057 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:52,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 4288 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:11:52,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76687 states.