./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix040.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix040.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e --- 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 12:15:13,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:15:13,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:15:13,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:15:13,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:15:13,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:15:13,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:15:13,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:15:13,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:15:13,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:15:13,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:15:13,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:15:13,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:15:13,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:15:13,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:15:13,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:15:13,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:15:13,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:15:13,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:15:13,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:15:13,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:15:13,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:15:13,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:15:13,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:15:13,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:15:13,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:15:13,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:15:13,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:15:13,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:15:13,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:15:13,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:15:13,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:15:13,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:15:13,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:15:13,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:15:13,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:15:13,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:15:13,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:15:13,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:15:13,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:15:13,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:15:13,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 12:15:13,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:15:13,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:15:13,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:15:13,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:15:13,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:15:13,834 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:15:13,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:15:13,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:15:13,836 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:15:13,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:15:13,836 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:15:13,836 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:15:13,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:15:13,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:15:13,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:15:13,837 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:15:13,837 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:15:13,837 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:15:13,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:15:13,838 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:15:13,838 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:15:13,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:15:13,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:15:13,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:15:13,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:15:13,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:15:13,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:15:13,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:15:13,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:15:13,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:15:13,840 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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e [2022-11-20 12:15:14,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:15:14,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:15:14,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:15:14,258 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:15:14,259 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:15:14,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix040.opt.i [2022-11-20 12:15:17,394 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:15:17,661 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:15:17,661 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/sv-benchmarks/c/pthread-wmm/mix040.opt.i [2022-11-20 12:15:17,674 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/data/f5dacc6a5/f9eef2294fc04a43b9705359d457c831/FLAGb6940f10e [2022-11-20 12:15:17,693 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/data/f5dacc6a5/f9eef2294fc04a43b9705359d457c831 [2022-11-20 12:15:17,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:15:17,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:15:17,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:15:17,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:15:17,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:15:17,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:15:17" (1/1) ... [2022-11-20 12:15:17,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2299a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:17, skipping insertion in model container [2022-11-20 12:15:17,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:15:17" (1/1) ... [2022-11-20 12:15:17,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:15:17,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:15:18,017 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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/sv-benchmarks/c/pthread-wmm/mix040.opt.i[944,957] [2022-11-20 12:15:18,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:18,231 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:15:18,250 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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/sv-benchmarks/c/pthread-wmm/mix040.opt.i[944,957] [2022-11-20 12:15:18,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:18,388 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:15:18,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18 WrapperNode [2022-11-20 12:15:18,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:15:18,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:15:18,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:15:18,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:15:18,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,490 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 151 [2022-11-20 12:15:18,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:15:18,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:15:18,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:15:18,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:15:18,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,547 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:15:18,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:15:18,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:15:18,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:15:18,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (1/1) ... [2022-11-20 12:15:18,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:15:18,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:15:18,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:15:18,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:15:18,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:15:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:15:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:15:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:15:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:15:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 12:15:18,657 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 12:15:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 12:15:18,657 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 12:15:18,658 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 12:15:18,658 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 12:15:18,658 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 12:15:18,658 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 12:15:18,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:15:18,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:15:18,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:15:18,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:15:18,662 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:15:18,850 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:15:18,852 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:15:19,360 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:15:19,490 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:15:19,491 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:15:19,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:15:19 BoogieIcfgContainer [2022-11-20 12:15:19,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:15:19,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:15:19,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:15:19,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:15:19,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:15:17" (1/3) ... [2022-11-20 12:15:19,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749e013c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:15:19, skipping insertion in model container [2022-11-20 12:15:19,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:18" (2/3) ... [2022-11-20 12:15:19,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749e013c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:15:19, skipping insertion in model container [2022-11-20 12:15:19,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:15:19" (3/3) ... [2022-11-20 12:15:19,503 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040.opt.i [2022-11-20 12:15:19,523 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:15:19,523 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-20 12:15:19,524 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:15:19,628 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:15:19,678 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 12:15:19,695 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 148 transitions, 316 flow [2022-11-20 12:15:19,699 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 148 transitions, 316 flow [2022-11-20 12:15:19,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 148 transitions, 316 flow [2022-11-20 12:15:19,779 INFO L130 PetriNetUnfolder]: 2/144 cut-off events. [2022-11-20 12:15:19,779 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:15:19,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 144 events. 2/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-20 12:15:19,798 INFO L119 LiptonReduction]: Number of co-enabled transitions 3352 [2022-11-20 12:15:26,397 INFO L134 LiptonReduction]: Checked pairs total: 8050 [2022-11-20 12:15:26,397 INFO L136 LiptonReduction]: Total number of compositions: 150 [2022-11-20 12:15:26,406 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 42 transitions, 104 flow [2022-11-20 12:15:26,624 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:26,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:15:26,649 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@7e639358, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:15:26,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-20 12:15:26,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:26,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 12:15:26,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:26,668 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 12:15:26,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:26,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:26,675 INFO L85 PathProgramCache]: Analyzing trace with hash 604, now seen corresponding path program 1 times [2022-11-20 12:15:26,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:26,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678370788] [2022-11-20 12:15:26,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:26,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:26,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:26,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678370788] [2022-11-20 12:15:26,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678370788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:26,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:26,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 12:15:26,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027146956] [2022-11-20 12:15:26,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:26,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:15:26,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:26,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:15:26,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:15:26,842 INFO L87 Difference]: Start difference. First operand has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:26,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:26,988 INFO L93 Difference]: Finished difference Result 2986 states and 11584 transitions. [2022-11-20 12:15:26,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:15:26,991 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-20 12:15:26,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:27,048 INFO L225 Difference]: With dead ends: 2986 [2022-11-20 12:15:27,048 INFO L226 Difference]: Without dead ends: 2986 [2022-11-20 12:15:27,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 12:15:27,054 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:27,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:15:27,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-11-20 12:15:27,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2986. [2022-11-20 12:15:27,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2981 states have (on average 3.8859443139885945) internal successors, (11584), 2985 states have internal predecessors, (11584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:27,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 11584 transitions. [2022-11-20 12:15:27,345 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 11584 transitions. Word has length 1 [2022-11-20 12:15:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:27,346 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 11584 transitions. [2022-11-20 12:15:27,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:27,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 11584 transitions. [2022-11-20 12:15:27,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 12:15:27,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:27,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:27,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:15:27,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:27,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:27,358 INFO L85 PathProgramCache]: Analyzing trace with hash -197326447, now seen corresponding path program 1 times [2022-11-20 12:15:27,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:27,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395685077] [2022-11-20 12:15:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:27,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:27,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:27,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:27,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395685077] [2022-11-20 12:15:27,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395685077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:27,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:27,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:15:27,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119282276] [2022-11-20 12:15:27,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:27,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:15:27,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:27,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:15:27,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:15:27,823 INFO L87 Difference]: Start difference. First operand 2986 states and 11584 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:27,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:27,950 INFO L93 Difference]: Finished difference Result 2538 states and 9744 transitions. [2022-11-20 12:15:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:15:27,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-20 12:15:27,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:27,978 INFO L225 Difference]: With dead ends: 2538 [2022-11-20 12:15:27,986 INFO L226 Difference]: Without dead ends: 2474 [2022-11-20 12:15:27,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:15:27,989 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:27,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:15:28,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-11-20 12:15:28,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-11-20 12:15:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2472 states have (on average 3.8576051779935274) internal successors, (9536), 2473 states have internal predecessors, (9536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:28,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 9536 transitions. [2022-11-20 12:15:28,207 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 9536 transitions. Word has length 9 [2022-11-20 12:15:28,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:28,208 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 9536 transitions. [2022-11-20 12:15:28,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:28,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 9536 transitions. [2022-11-20 12:15:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:15:28,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:28,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:28,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:15:28,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:28,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:28,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1261111757, now seen corresponding path program 1 times [2022-11-20 12:15:28,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:28,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238011151] [2022-11-20 12:15:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:28,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:28,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:28,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:28,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238011151] [2022-11-20 12:15:28,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238011151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:28,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:28,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:15:28,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164924640] [2022-11-20 12:15:28,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:28,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:15:28,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:28,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:15:28,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:15:28,508 INFO L87 Difference]: Start difference. First operand 2474 states and 9536 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:28,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:28,853 INFO L93 Difference]: Finished difference Result 5442 states and 20222 transitions. [2022-11-20 12:15:28,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:15:28,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-20 12:15:28,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:28,899 INFO L225 Difference]: With dead ends: 5442 [2022-11-20 12:15:28,900 INFO L226 Difference]: Without dead ends: 5442 [2022-11-20 12:15:28,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:28,904 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 35 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:28,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 15 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:15:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5442 states. [2022-11-20 12:15:29,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5442 to 3726. [2022-11-20 12:15:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3726 states, 3724 states have (on average 3.8651987110633725) internal successors, (14394), 3725 states have internal predecessors, (14394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:29,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 14394 transitions. [2022-11-20 12:15:29,100 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 14394 transitions. Word has length 12 [2022-11-20 12:15:29,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:29,101 INFO L495 AbstractCegarLoop]: Abstraction has 3726 states and 14394 transitions. [2022-11-20 12:15:29,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:29,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 14394 transitions. [2022-11-20 12:15:29,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:15:29,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:29,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:29,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:15:29,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:29,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:29,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1261111806, now seen corresponding path program 1 times [2022-11-20 12:15:29,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:29,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418277037] [2022-11-20 12:15:29,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:29,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:30,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:30,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418277037] [2022-11-20 12:15:30,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418277037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:30,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:30,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:15:30,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858376759] [2022-11-20 12:15:30,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:30,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:15:30,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:30,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:15:30,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:30,014 INFO L87 Difference]: Start difference. First operand 3726 states and 14394 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:30,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:30,308 INFO L93 Difference]: Finished difference Result 3342 states and 12450 transitions. [2022-11-20 12:15:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:15:30,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-20 12:15:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:30,349 INFO L225 Difference]: With dead ends: 3342 [2022-11-20 12:15:30,350 INFO L226 Difference]: Without dead ends: 2778 [2022-11-20 12:15:30,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:30,352 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 61 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:30,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 35 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:15:30,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2022-11-20 12:15:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2778. [2022-11-20 12:15:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2777 states have (on average 3.7032769175369102) internal successors, (10284), 2777 states have internal predecessors, (10284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:30,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 10284 transitions. [2022-11-20 12:15:30,468 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 10284 transitions. Word has length 12 [2022-11-20 12:15:30,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:30,468 INFO L495 AbstractCegarLoop]: Abstraction has 2778 states and 10284 transitions. [2022-11-20 12:15:30,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:30,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 10284 transitions. [2022-11-20 12:15:30,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 12:15:30,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:30,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:30,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:15:30,471 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:30,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:30,472 INFO L85 PathProgramCache]: Analyzing trace with hash 576742690, now seen corresponding path program 1 times [2022-11-20 12:15:30,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:30,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981785269] [2022-11-20 12:15:30,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:30,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:30,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:30,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:30,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981785269] [2022-11-20 12:15:30,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981785269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:30,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:30,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:15:30,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340917337] [2022-11-20 12:15:30,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:30,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:15:30,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:30,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:15:30,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:30,614 INFO L87 Difference]: Start difference. First operand 2778 states and 10284 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:30,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:30,891 INFO L93 Difference]: Finished difference Result 3466 states and 12288 transitions. [2022-11-20 12:15:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:15:30,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-20 12:15:30,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:30,909 INFO L225 Difference]: With dead ends: 3466 [2022-11-20 12:15:30,910 INFO L226 Difference]: Without dead ends: 2922 [2022-11-20 12:15:30,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:30,911 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 60 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:30,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 20 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:15:30,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-11-20 12:15:31,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2230. [2022-11-20 12:15:31,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 2229 states have (on average 3.6814715118887396) internal successors, (8206), 2229 states have internal predecessors, (8206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:31,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 8206 transitions. [2022-11-20 12:15:31,023 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 8206 transitions. Word has length 13 [2022-11-20 12:15:31,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:31,024 INFO L495 AbstractCegarLoop]: Abstraction has 2230 states and 8206 transitions. [2022-11-20 12:15:31,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:31,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 8206 transitions. [2022-11-20 12:15:31,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:15:31,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:31,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:31,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:15:31,027 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:31,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:31,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1668946554, now seen corresponding path program 1 times [2022-11-20 12:15:31,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:31,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772888127] [2022-11-20 12:15:31,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:31,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:31,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:31,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:31,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772888127] [2022-11-20 12:15:31,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772888127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:31,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:31,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:15:31,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414792005] [2022-11-20 12:15:31,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:31,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:15:31,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:31,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:15:31,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:31,266 INFO L87 Difference]: Start difference. First operand 2230 states and 8206 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:31,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:31,557 INFO L93 Difference]: Finished difference Result 3198 states and 11232 transitions. [2022-11-20 12:15:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:15:31,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-20 12:15:31,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:31,573 INFO L225 Difference]: With dead ends: 3198 [2022-11-20 12:15:31,573 INFO L226 Difference]: Without dead ends: 2774 [2022-11-20 12:15:31,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:31,575 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 56 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:31,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 16 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:15:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2022-11-20 12:15:31,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2118. [2022-11-20 12:15:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2118 states, 2117 states have (on average 3.651393481341521) internal successors, (7730), 2117 states have internal predecessors, (7730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:31,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2118 states to 2118 states and 7730 transitions. [2022-11-20 12:15:31,672 INFO L78 Accepts]: Start accepts. Automaton has 2118 states and 7730 transitions. Word has length 14 [2022-11-20 12:15:31,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:31,672 INFO L495 AbstractCegarLoop]: Abstraction has 2118 states and 7730 transitions. [2022-11-20 12:15:31,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:31,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2118 states and 7730 transitions. [2022-11-20 12:15:31,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 12:15:31,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:31,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:31,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:15:31,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:31,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:31,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1857135327, now seen corresponding path program 1 times [2022-11-20 12:15:31,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:31,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363555741] [2022-11-20 12:15:31,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:31,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:31,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:31,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363555741] [2022-11-20 12:15:31,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363555741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:31,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:31,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:15:31,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655940853] [2022-11-20 12:15:31,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:31,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:15:31,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:31,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:15:31,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:31,873 INFO L87 Difference]: Start difference. First operand 2118 states and 7730 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:32,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:32,125 INFO L93 Difference]: Finished difference Result 3024 states and 10611 transitions. [2022-11-20 12:15:32,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:15:32,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-20 12:15:32,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:32,141 INFO L225 Difference]: With dead ends: 3024 [2022-11-20 12:15:32,141 INFO L226 Difference]: Without dead ends: 2698 [2022-11-20 12:15:32,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:32,142 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 57 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:32,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 20 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:15:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2022-11-20 12:15:32,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2070. [2022-11-20 12:15:32,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2070 states, 2069 states have (on average 3.6336394393426774) internal successors, (7518), 2069 states have internal predecessors, (7518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:32,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2070 states to 2070 states and 7518 transitions. [2022-11-20 12:15:32,239 INFO L78 Accepts]: Start accepts. Automaton has 2070 states and 7518 transitions. Word has length 15 [2022-11-20 12:15:32,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:32,239 INFO L495 AbstractCegarLoop]: Abstraction has 2070 states and 7518 transitions. [2022-11-20 12:15:32,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:32,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2070 states and 7518 transitions. [2022-11-20 12:15:32,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 12:15:32,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:32,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:32,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:15:32,245 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:32,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:32,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2028014442, now seen corresponding path program 1 times [2022-11-20 12:15:32,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:32,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112809901] [2022-11-20 12:15:32,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:32,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:32,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:32,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:32,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112809901] [2022-11-20 12:15:32,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112809901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:32,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:32,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:15:32,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795632587] [2022-11-20 12:15:32,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:32,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:15:32,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:32,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:15:32,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:15:32,446 INFO L87 Difference]: Start difference. First operand 2070 states and 7518 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:32,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:32,570 INFO L93 Difference]: Finished difference Result 2136 states and 7020 transitions. [2022-11-20 12:15:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:15:32,571 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 12:15:32,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:32,579 INFO L225 Difference]: With dead ends: 2136 [2022-11-20 12:15:32,579 INFO L226 Difference]: Without dead ends: 1636 [2022-11-20 12:15:32,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:32,580 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 49 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:32,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 9 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:15:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-11-20 12:15:32,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1636. [2022-11-20 12:15:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1635 states have (on average 3.2831804281345565) internal successors, (5368), 1635 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 5368 transitions. [2022-11-20 12:15:32,633 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 5368 transitions. Word has length 16 [2022-11-20 12:15:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:32,633 INFO L495 AbstractCegarLoop]: Abstraction has 1636 states and 5368 transitions. [2022-11-20 12:15:32,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 5368 transitions. [2022-11-20 12:15:32,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 12:15:32,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:32,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:32,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:15:32,637 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:32,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:32,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1906330531, now seen corresponding path program 1 times [2022-11-20 12:15:32,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:32,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588496334] [2022-11-20 12:15:32,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:32,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:32,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:32,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588496334] [2022-11-20 12:15:32,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588496334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:32,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:32,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:15:32,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208239953] [2022-11-20 12:15:32,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:32,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:15:32,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:32,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:15:32,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:15:32,779 INFO L87 Difference]: Start difference. First operand 1636 states and 5368 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:32,915 INFO L93 Difference]: Finished difference Result 2364 states and 7508 transitions. [2022-11-20 12:15:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:15:32,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-20 12:15:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:32,945 INFO L225 Difference]: With dead ends: 2364 [2022-11-20 12:15:32,945 INFO L226 Difference]: Without dead ends: 1654 [2022-11-20 12:15:32,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:32,947 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 34 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:32,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 16 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:15:32,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-11-20 12:15:32,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1456. [2022-11-20 12:15:32,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.158762886597938) internal successors, (4596), 1455 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:33,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 4596 transitions. [2022-11-20 12:15:33,008 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 4596 transitions. Word has length 17 [2022-11-20 12:15:33,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:33,009 INFO L495 AbstractCegarLoop]: Abstraction has 1456 states and 4596 transitions. [2022-11-20 12:15:33,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:33,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 4596 transitions. [2022-11-20 12:15:33,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 12:15:33,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:33,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:33,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:15:33,014 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:33,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:33,014 INFO L85 PathProgramCache]: Analyzing trace with hash 845534700, now seen corresponding path program 1 times [2022-11-20 12:15:33,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:33,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203049938] [2022-11-20 12:15:33,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:33,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:33,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:33,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203049938] [2022-11-20 12:15:33,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203049938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:33,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:33,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:15:33,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54510725] [2022-11-20 12:15:33,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:33,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:15:33,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:33,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:15:33,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:33,205 INFO L87 Difference]: Start difference. First operand 1456 states and 4596 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:33,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:33,450 INFO L93 Difference]: Finished difference Result 2308 states and 6985 transitions. [2022-11-20 12:15:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:15:33,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-20 12:15:33,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:33,459 INFO L225 Difference]: With dead ends: 2308 [2022-11-20 12:15:33,460 INFO L226 Difference]: Without dead ends: 1622 [2022-11-20 12:15:33,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:33,461 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 47 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:33,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 19 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:15:33,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-20 12:15:33,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1268. [2022-11-20 12:15:33,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1267 states have (on average 3.046566692975533) internal successors, (3860), 1267 states have internal predecessors, (3860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 3860 transitions. [2022-11-20 12:15:33,514 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 3860 transitions. Word has length 18 [2022-11-20 12:15:33,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:33,514 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 3860 transitions. [2022-11-20 12:15:33,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:33,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 3860 transitions. [2022-11-20 12:15:33,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 12:15:33,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:33,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:33,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:15:33,519 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:33,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:33,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1104127051, now seen corresponding path program 1 times [2022-11-20 12:15:33,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:33,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028239256] [2022-11-20 12:15:33,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:33,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:33,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:33,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:33,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028239256] [2022-11-20 12:15:33,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028239256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:33,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:33,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:15:33,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551188207] [2022-11-20 12:15:33,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:33,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:15:33,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:33,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:15:33,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:33,720 INFO L87 Difference]: Start difference. First operand 1268 states and 3860 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:33,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:33,851 INFO L93 Difference]: Finished difference Result 1073 states and 2930 transitions. [2022-11-20 12:15:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:15:33,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-20 12:15:33,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:33,854 INFO L225 Difference]: With dead ends: 1073 [2022-11-20 12:15:33,855 INFO L226 Difference]: Without dead ends: 824 [2022-11-20 12:15:33,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:33,856 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 93 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:33,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 12 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:15:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-11-20 12:15:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2022-11-20 12:15:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 823 states have (on average 2.6828675577156744) internal successors, (2208), 823 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:33,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 2208 transitions. [2022-11-20 12:15:33,896 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 2208 transitions. Word has length 18 [2022-11-20 12:15:33,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:33,897 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 2208 transitions. [2022-11-20 12:15:33,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:33,898 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 2208 transitions. [2022-11-20 12:15:33,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 12:15:33,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:33,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:33,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:15:33,901 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:33,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:33,902 INFO L85 PathProgramCache]: Analyzing trace with hash 328519489, now seen corresponding path program 1 times [2022-11-20 12:15:33,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:33,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927927264] [2022-11-20 12:15:33,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:33,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:34,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:34,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927927264] [2022-11-20 12:15:34,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927927264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:34,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:34,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:15:34,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675934915] [2022-11-20 12:15:34,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:34,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:15:34,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:34,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:15:34,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:15:34,118 INFO L87 Difference]: Start difference. First operand 824 states and 2208 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:34,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:34,274 INFO L93 Difference]: Finished difference Result 693 states and 1802 transitions. [2022-11-20 12:15:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:15:34,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-20 12:15:34,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:34,276 INFO L225 Difference]: With dead ends: 693 [2022-11-20 12:15:34,276 INFO L226 Difference]: Without dead ends: 558 [2022-11-20 12:15:34,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:15:34,277 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 154 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:34,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 15 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:15:34,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-11-20 12:15:34,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2022-11-20 12:15:34,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 557 states have (on average 2.570915619389587) internal successors, (1432), 557 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:34,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1432 transitions. [2022-11-20 12:15:34,290 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1432 transitions. Word has length 20 [2022-11-20 12:15:34,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:34,291 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 1432 transitions. [2022-11-20 12:15:34,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1432 transitions. [2022-11-20 12:15:34,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 12:15:34,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:34,292 INFO L195 NwaCegarLoop]: trace histogram [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 12:15:34,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:15:34,293 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:34,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:34,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1648919468, now seen corresponding path program 1 times [2022-11-20 12:15:34,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:34,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096215958] [2022-11-20 12:15:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:34,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:34,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:34,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:34,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096215958] [2022-11-20 12:15:34,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096215958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:34,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:34,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:15:34,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989230457] [2022-11-20 12:15:34,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:34,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:15:34,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:34,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:15:34,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:34,533 INFO L87 Difference]: Start difference. First operand 558 states and 1432 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:34,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:34,707 INFO L93 Difference]: Finished difference Result 525 states and 1366 transitions. [2022-11-20 12:15:34,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:15:34,708 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-20 12:15:34,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:34,709 INFO L225 Difference]: With dead ends: 525 [2022-11-20 12:15:34,709 INFO L226 Difference]: Without dead ends: 210 [2022-11-20 12:15:34,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:15:34,710 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 159 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:34,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 10 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:15:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-20 12:15:34,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-20 12:15:34,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 2.4210526315789473) internal successors, (506), 209 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 506 transitions. [2022-11-20 12:15:34,715 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 506 transitions. Word has length 23 [2022-11-20 12:15:34,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:34,716 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 506 transitions. [2022-11-20 12:15:34,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:34,716 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 506 transitions. [2022-11-20 12:15:34,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 12:15:34,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:34,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 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 12:15:34,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:15:34,717 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:34,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:34,718 INFO L85 PathProgramCache]: Analyzing trace with hash -70003225, now seen corresponding path program 1 times [2022-11-20 12:15:34,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:34,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572528902] [2022-11-20 12:15:34,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:34,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:34,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:15:34,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572528902] [2022-11-20 12:15:34,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572528902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:34,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:34,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:15:34,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129212724] [2022-11-20 12:15:34,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:34,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:15:34,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:15:34,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:15:34,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:34,930 INFO L87 Difference]: Start difference. First operand 210 states and 506 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:35,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:35,063 INFO L93 Difference]: Finished difference Result 276 states and 656 transitions. [2022-11-20 12:15:35,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:15:35,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-20 12:15:35,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:35,064 INFO L225 Difference]: With dead ends: 276 [2022-11-20 12:15:35,064 INFO L226 Difference]: Without dead ends: 81 [2022-11-20 12:15:35,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:35,065 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 21 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:35,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 12 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:15:35,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-20 12:15:35,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-11-20 12:15:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 2.0875) internal successors, (167), 80 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:35,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 167 transitions. [2022-11-20 12:15:35,069 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 167 transitions. Word has length 26 [2022-11-20 12:15:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:35,069 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 167 transitions. [2022-11-20 12:15:35,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 167 transitions. [2022-11-20 12:15:35,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 12:15:35,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:35,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 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 12:15:35,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:15:35,071 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:35,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:35,071 INFO L85 PathProgramCache]: Analyzing trace with hash -307069105, now seen corresponding path program 2 times [2022-11-20 12:15:35,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:15:35,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751173053] [2022-11-20 12:15:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:35,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:15:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:15:35,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:15:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:15:35,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:15:35,180 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:15:35,181 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-20 12:15:35,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-20 12:15:35,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-20 12:15:35,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-20 12:15:35,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-20 12:15:35,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-20 12:15:35,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-20 12:15:35,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-20 12:15:35,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-20 12:15:35,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-20 12:15:35,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-20 12:15:35,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-20 12:15:35,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-20 12:15:35,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-20 12:15:35,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-20 12:15:35,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-20 12:15:35,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:15:35,190 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:35,196 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:15:35,196 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:15:35,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:15:35 BasicIcfg [2022-11-20 12:15:35,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:15:35,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:15:35,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:15:35,325 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:15:35,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:15:19" (3/4) ... [2022-11-20 12:15:35,329 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:15:35,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:15:35,329 INFO L158 Benchmark]: Toolchain (without parser) took 17629.92ms. Allocated memory was 153.1MB in the beginning and 381.7MB in the end (delta: 228.6MB). Free memory was 109.2MB in the beginning and 224.1MB in the end (delta: -114.9MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB. [2022-11-20 12:15:35,330 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:15:35,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.59ms. Allocated memory is still 153.1MB. Free memory was 109.2MB in the beginning and 107.6MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:15:35,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.27ms. Allocated memory is still 153.1MB. Free memory was 107.0MB in the beginning and 104.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:15:35,332 INFO L158 Benchmark]: Boogie Preprocessor took 60.71ms. Allocated memory is still 153.1MB. Free memory was 104.8MB in the beginning and 102.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:15:35,332 INFO L158 Benchmark]: RCFGBuilder took 940.88ms. Allocated memory is still 153.1MB. Free memory was 102.8MB in the beginning and 69.8MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 12:15:35,333 INFO L158 Benchmark]: TraceAbstraction took 15827.83ms. Allocated memory was 153.1MB in the beginning and 381.7MB in the end (delta: 228.6MB). Free memory was 69.3MB in the beginning and 224.1MB in the end (delta: -154.8MB). Peak memory consumption was 75.9MB. Max. memory is 16.1GB. [2022-11-20 12:15:35,333 INFO L158 Benchmark]: Witness Printer took 4.09ms. Allocated memory is still 381.7MB. Free memory is still 224.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:15:35,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 688.59ms. Allocated memory is still 153.1MB. Free memory was 109.2MB in the beginning and 107.6MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.27ms. Allocated memory is still 153.1MB. Free memory was 107.0MB in the beginning and 104.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.71ms. Allocated memory is still 153.1MB. Free memory was 104.8MB in the beginning and 102.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 940.88ms. Allocated memory is still 153.1MB. Free memory was 102.8MB in the beginning and 69.8MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15827.83ms. Allocated memory was 153.1MB in the beginning and 381.7MB in the end (delta: 228.6MB). Free memory was 69.3MB in the beginning and 224.1MB in the end (delta: -154.8MB). Peak memory consumption was 75.9MB. Max. memory is 16.1GB. * Witness Printer took 4.09ms. Allocated memory is still 381.7MB. Free memory is still 224.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7s, 159 PlacesBefore, 54 PlacesAfterwards, 148 TransitionsBefore, 42 TransitionsAfterwards, 3352 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 150 TotalNumberOfCompositions, 8050 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5105, independent: 4919, independent conditional: 0, independent unconditional: 4919, dependent: 186, dependent conditional: 0, dependent unconditional: 186, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2502, independent: 2448, independent conditional: 0, independent unconditional: 2448, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2502, independent: 2418, independent conditional: 0, independent unconditional: 2418, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 84, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 300, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 251, dependent conditional: 0, dependent unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5105, independent: 2471, independent conditional: 0, independent unconditional: 2471, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 2502, unknown conditional: 0, unknown unconditional: 2502] , Statistics on independence cache: Total cache size (in pairs): 329, Positive cache size: 311, Positive conditional cache size: 0, Positive unconditional cache size: 311, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L720] 0 int b = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L854] 0 pthread_t t1061; [L855] FCALL, FORK 0 pthread_create(&t1061, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1061, ((void *)0), P0, ((void *)0))=-1, t1061={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L856] 0 pthread_t t1062; [L857] FCALL, FORK 0 pthread_create(&t1062, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1062, ((void *)0), P1, ((void *)0))=0, t1061={5:0}, t1062={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L858] 0 pthread_t t1063; [L859] FCALL, FORK 0 pthread_create(&t1063, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1063, ((void *)0), P2, ((void *)0))=1, t1061={5:0}, t1062={6:0}, t1063={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L860] 0 pthread_t t1064; [L861] FCALL, FORK 0 pthread_create(&t1064, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1064, ((void *)0), P3, ((void *)0))=2, t1061={5:0}, t1062={6:0}, t1063={7:0}, t1064={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L810] 4 z$w_buff1 = z$w_buff0 [L811] 4 z$w_buff0 = 1 [L812] 4 z$w_buff1_used = z$w_buff0_used [L813] 4 z$w_buff0_used = (_Bool)1 [L814] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L814] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L815] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L816] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L817] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L818] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L819] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L820] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L823] 4 a = 1 [L826] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L829] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L767] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L770] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L786] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L787] 3 z$flush_delayed = weak$$choice2 [L788] 3 z$mem_tmp = z [L789] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L790] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L791] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L792] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L793] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L794] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L795] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 __unbuffered_p2_EAX = z [L797] 3 z = z$flush_delayed ? z$mem_tmp : z [L798] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 2 return 0; [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L805] 3 return 0; [L832] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L833] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L834] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L835] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L836] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L839] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L841] 4 return 0; [L863] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L865] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L865] RET 0 assume_abort_if_not(main$tmp_guard0) [L867] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L868] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L869] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L870] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L871] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1061={5:0}, t1062={6:0}, t1063={7:0}, t1064={3:0}, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L874] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L876] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 852]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 857]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 183 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 15.5s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 839 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 839 mSDsluCounter, 208 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1459 IncrementalHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 78 mSDtfsCounter, 1459 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3726occurred in iteration=3, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 4244 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 1321 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 12:15:35,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix040.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e --- 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 12:15:37,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:15:37,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:15:37,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:15:37,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:15:37,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:15:37,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:15:37,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:15:37,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:15:38,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:15:38,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:15:38,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:15:38,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:15:38,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:15:38,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:15:38,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:15:38,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:15:38,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:15:38,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:15:38,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:15:38,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:15:38,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:15:38,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:15:38,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:15:38,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:15:38,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:15:38,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:15:38,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:15:38,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:15:38,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:15:38,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:15:38,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:15:38,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:15:38,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:15:38,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:15:38,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:15:38,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:15:38,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:15:38,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:15:38,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:15:38,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:15:38,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-20 12:15:38,102 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:15:38,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:15:38,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:15:38,103 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:15:38,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:15:38,104 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:15:38,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:15:38,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:15:38,105 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:15:38,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:15:38,105 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:15:38,105 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:15:38,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:15:38,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:15:38,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:15:38,106 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:15:38,107 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:15:38,107 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:15:38,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:15:38,107 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:15:38,107 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:15:38,108 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:15:38,108 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:15:38,108 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:15:38,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:15:38,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:15:38,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:15:38,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:15:38,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:15:38,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:15:38,110 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:15:38,110 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:15:38,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:15:38,110 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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e [2022-11-20 12:15:38,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:15:38,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:15:38,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:15:38,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:15:38,522 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:15:38,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix040.opt.i [2022-11-20 12:15:41,704 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:15:42,056 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:15:42,062 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/sv-benchmarks/c/pthread-wmm/mix040.opt.i [2022-11-20 12:15:42,082 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/data/8e7f55839/b7538ddb7b674502a9b8605eee3116a0/FLAGf614a6377 [2022-11-20 12:15:42,101 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/data/8e7f55839/b7538ddb7b674502a9b8605eee3116a0 [2022-11-20 12:15:42,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:15:42,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:15:42,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:15:42,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:15:42,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:15:42,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a83898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42, skipping insertion in model container [2022-11-20 12:15:42,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:15:42,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:15:42,349 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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/sv-benchmarks/c/pthread-wmm/mix040.opt.i[944,957] [2022-11-20 12:15:42,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:42,646 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:15:42,661 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_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/sv-benchmarks/c/pthread-wmm/mix040.opt.i[944,957] [2022-11-20 12:15:42,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:42,778 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:15:42,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42 WrapperNode [2022-11-20 12:15:42,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:15:42,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:15:42,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:15:42,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:15:42,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,848 INFO L138 Inliner]: procedures = 180, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2022-11-20 12:15:42,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:15:42,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:15:42,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:15:42,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:15:42,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,878 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:15:42,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:15:42,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:15:42,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:15:42,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (1/1) ... [2022-11-20 12:15:42,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:15:42,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:15:42,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:15:42,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:15:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:15:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:15:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 12:15:42,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 12:15:42,987 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 12:15:42,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 12:15:42,988 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 12:15:42,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 12:15:42,988 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 12:15:42,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 12:15:42,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:15:42,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:15:42,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:15:42,991 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:15:43,163 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:15:43,166 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:15:43,686 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:15:43,915 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:15:43,916 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:15:43,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:15:43 BoogieIcfgContainer [2022-11-20 12:15:43,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:15:43,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:15:43,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:15:43,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:15:43,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:15:42" (1/3) ... [2022-11-20 12:15:43,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221ad5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:15:43, skipping insertion in model container [2022-11-20 12:15:43,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:42" (2/3) ... [2022-11-20 12:15:43,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221ad5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:15:43, skipping insertion in model container [2022-11-20 12:15:43,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:15:43" (3/3) ... [2022-11-20 12:15:43,938 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040.opt.i [2022-11-20 12:15:43,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:15:43,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-20 12:15:43,964 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:15:44,098 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:15:44,161 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 12:15:44,201 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 149 transitions, 318 flow [2022-11-20 12:15:44,212 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 149 transitions, 318 flow [2022-11-20 12:15:44,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 318 flow [2022-11-20 12:15:44,331 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-11-20 12:15:44,331 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:15:44,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-20 12:15:44,342 INFO L119 LiptonReduction]: Number of co-enabled transitions 3352 [2022-11-20 12:15:55,457 INFO L134 LiptonReduction]: Checked pairs total: 8303 [2022-11-20 12:15:55,457 INFO L136 LiptonReduction]: Total number of compositions: 146 [2022-11-20 12:15:55,466 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 42 transitions, 104 flow [2022-11-20 12:15:55,679 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:55,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:15:55,707 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@21bb39d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:15:55,707 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-20 12:15:55,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 12:15:55,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:55,729 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 12:15:55,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:55,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:55,735 INFO L85 PathProgramCache]: Analyzing trace with hash 602, now seen corresponding path program 1 times [2022-11-20 12:15:55,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:15:55,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915851899] [2022-11-20 12:15:55,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:55,751 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 12:15:55,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:15:55,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:55,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:55,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:15:55,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:15:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:55,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:15:55,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:15:55,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915851899] [2022-11-20 12:15:55,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915851899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:55,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:55,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 12:15:55,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143570037] [2022-11-20 12:15:55,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:55,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:15:55,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:15:55,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:15:55,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:15:55,994 INFO L87 Difference]: Start difference. First operand has 3156 states, 3143 states have (on average 3.9910913140311806) internal successors, (12544), 3155 states have internal predecessors, (12544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:56,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:56,313 INFO L93 Difference]: Finished difference Result 2986 states and 11584 transitions. [2022-11-20 12:15:56,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:15:56,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-20 12:15:56,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:56,370 INFO L225 Difference]: With dead ends: 2986 [2022-11-20 12:15:56,370 INFO L226 Difference]: Without dead ends: 2986 [2022-11-20 12:15:56,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 12:15:56,377 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:56,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:15:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-11-20 12:15:56,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2986. [2022-11-20 12:15:56,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2981 states have (on average 3.8859443139885945) internal successors, (11584), 2985 states have internal predecessors, (11584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:56,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 11584 transitions. [2022-11-20 12:15:56,670 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 11584 transitions. Word has length 1 [2022-11-20 12:15:56,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:56,670 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 11584 transitions. [2022-11-20 12:15:56,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:56,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 11584 transitions. [2022-11-20 12:15:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 12:15:56,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:56,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:56,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:56,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:56,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:56,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:56,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1784880445, now seen corresponding path program 1 times [2022-11-20 12:15:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:15:56,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600740922] [2022-11-20 12:15:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:56,893 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 12:15:56,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:15:56,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:56,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:57,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:15:57,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:15:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:57,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:15:57,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:15:57,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600740922] [2022-11-20 12:15:57,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600740922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:57,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:57,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:15:57,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681279972] [2022-11-20 12:15:57,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:57,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:15:57,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:15:57,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:15:57,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:15:57,147 INFO L87 Difference]: Start difference. First operand 2986 states and 11584 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:57,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:57,383 INFO L93 Difference]: Finished difference Result 2538 states and 9744 transitions. [2022-11-20 12:15:57,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:15:57,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-20 12:15:57,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:57,414 INFO L225 Difference]: With dead ends: 2538 [2022-11-20 12:15:57,414 INFO L226 Difference]: Without dead ends: 2474 [2022-11-20 12:15:57,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 12:15:57,416 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:57,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:15:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-11-20 12:15:57,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-11-20 12:15:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2472 states have (on average 3.8576051779935274) internal successors, (9536), 2473 states have internal predecessors, (9536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:57,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 9536 transitions. [2022-11-20 12:15:57,647 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 9536 transitions. Word has length 9 [2022-11-20 12:15:57,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:57,649 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 9536 transitions. [2022-11-20 12:15:57,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:57,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 9536 transitions. [2022-11-20 12:15:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:15:57,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:57,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:57,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:15:57,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:57,866 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:57,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:57,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1578063112, now seen corresponding path program 1 times [2022-11-20 12:15:57,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:15:57,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804231262] [2022-11-20 12:15:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:57,868 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 12:15:57,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:15:57,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:57,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:58,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:15:58,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:15:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:58,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:15:58,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:15:58,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804231262] [2022-11-20 12:15:58,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804231262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:58,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:58,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:15:58,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870416348] [2022-11-20 12:15:58,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:58,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:15:58,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:15:58,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:15:58,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:15:58,099 INFO L87 Difference]: Start difference. First operand 2474 states and 9536 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:58,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:58,349 INFO L93 Difference]: Finished difference Result 2183 states and 7480 transitions. [2022-11-20 12:15:58,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:15:58,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 12:15:58,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:58,364 INFO L225 Difference]: With dead ends: 2183 [2022-11-20 12:15:58,365 INFO L226 Difference]: Without dead ends: 1799 [2022-11-20 12:15:58,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:58,366 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 52 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:58,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 9 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:15:58,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2022-11-20 12:15:58,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2022-11-20 12:15:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1797 states have (on average 3.428491930996105) internal successors, (6161), 1798 states have internal predecessors, (6161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:58,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 6161 transitions. [2022-11-20 12:15:58,437 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 6161 transitions. Word has length 11 [2022-11-20 12:15:58,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:58,437 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 6161 transitions. [2022-11-20 12:15:58,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:58,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 6161 transitions. [2022-11-20 12:15:58,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:15:58,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:58,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:58,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:58,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:58,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:58,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:58,654 INFO L85 PathProgramCache]: Analyzing trace with hash 930076450, now seen corresponding path program 1 times [2022-11-20 12:15:58,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:15:58,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863165352] [2022-11-20 12:15:58,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:58,655 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 12:15:58,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:15:58,657 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:58,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:58,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:15:58,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:15:58,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:58,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:15:58,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:15:58,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863165352] [2022-11-20 12:15:58,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863165352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:58,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:58,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:15:58,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809775912] [2022-11-20 12:15:58,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:58,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:15:58,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:15:58,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:15:58,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:15:58,881 INFO L87 Difference]: Start difference. First operand 1799 states and 6161 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:59,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:59,141 INFO L93 Difference]: Finished difference Result 1238 states and 3727 transitions. [2022-11-20 12:15:59,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:15:59,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-20 12:15:59,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:59,146 INFO L225 Difference]: With dead ends: 1238 [2022-11-20 12:15:59,147 INFO L226 Difference]: Without dead ends: 989 [2022-11-20 12:15:59,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:15:59,148 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 84 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:59,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 15 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:15:59,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2022-11-20 12:15:59,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 989. [2022-11-20 12:15:59,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 987 states have (on average 2.9594731509625127) internal successors, (2921), 988 states have internal predecessors, (2921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:59,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 2921 transitions. [2022-11-20 12:15:59,246 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 2921 transitions. Word has length 14 [2022-11-20 12:15:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:15:59,247 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 2921 transitions. [2022-11-20 12:15:59,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 2921 transitions. [2022-11-20 12:15:59,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 12:15:59,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:15:59,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:15:59,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:59,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:59,461 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:15:59,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:15:59,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1819364005, now seen corresponding path program 1 times [2022-11-20 12:15:59,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:15:59,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129006878] [2022-11-20 12:15:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:15:59,462 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 12:15:59,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:15:59,464 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:59,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:15:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:15:59,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:15:59,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:15:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:15:59,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:15:59,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:15:59,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129006878] [2022-11-20 12:15:59,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129006878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:15:59,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:15:59,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:15:59,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683246691] [2022-11-20 12:15:59,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:15:59,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:15:59,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:15:59,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:15:59,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:15:59,675 INFO L87 Difference]: Start difference. First operand 989 states and 2921 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:15:59,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:15:59,977 INFO L93 Difference]: Finished difference Result 716 states and 2071 transitions. [2022-11-20 12:15:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:15:59,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-20 12:15:59,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:15:59,984 INFO L225 Difference]: With dead ends: 716 [2022-11-20 12:15:59,984 INFO L226 Difference]: Without dead ends: 629 [2022-11-20 12:15:59,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:15:59,985 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 112 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:15:59,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 30 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:15:59,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-11-20 12:16:00,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2022-11-20 12:16:00,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 627 states have (on average 2.9362041467304625) internal successors, (1841), 628 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:00,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1841 transitions. [2022-11-20 12:16:00,005 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1841 transitions. Word has length 17 [2022-11-20 12:16:00,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:00,006 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 1841 transitions. [2022-11-20 12:16:00,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:00,006 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1841 transitions. [2022-11-20 12:16:00,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 12:16:00,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:00,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:00,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:00,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:00,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:16:00,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:00,220 INFO L85 PathProgramCache]: Analyzing trace with hash 302812315, now seen corresponding path program 1 times [2022-11-20 12:16:00,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:16:00,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046649420] [2022-11-20 12:16:00,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:00,221 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 12:16:00,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:16:00,223 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:00,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:00,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:16:00,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:00,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:00,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:16:00,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:16:00,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046649420] [2022-11-20 12:16:00,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046649420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:00,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:00,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:16:00,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209272538] [2022-11-20 12:16:00,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:00,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:16:00,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:16:00,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:16:00,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:16:00,459 INFO L87 Difference]: Start difference. First operand 629 states and 1841 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:00,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:00,830 INFO L93 Difference]: Finished difference Result 574 states and 1729 transitions. [2022-11-20 12:16:00,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:16:00,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-20 12:16:00,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:00,835 INFO L225 Difference]: With dead ends: 574 [2022-11-20 12:16:00,835 INFO L226 Difference]: Without dead ends: 559 [2022-11-20 12:16:00,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:16:00,836 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 122 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:00,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 48 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:16:00,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-11-20 12:16:00,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2022-11-20 12:16:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 557 states have (on average 3.0538599640933572) internal successors, (1701), 558 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:00,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1701 transitions. [2022-11-20 12:16:00,855 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1701 transitions. Word has length 20 [2022-11-20 12:16:00,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:00,855 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 1701 transitions. [2022-11-20 12:16:00,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:00,856 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1701 transitions. [2022-11-20 12:16:00,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 12:16:00,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:00,858 INFO L195 NwaCegarLoop]: trace histogram [1, 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 12:16:00,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:01,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:01,071 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:16:01,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:01,072 INFO L85 PathProgramCache]: Analyzing trace with hash 113124947, now seen corresponding path program 1 times [2022-11-20 12:16:01,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:16:01,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844198820] [2022-11-20 12:16:01,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:01,073 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 12:16:01,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:16:01,074 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:01,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:01,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:16:01,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:01,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:01,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:16:01,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:16:01,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844198820] [2022-11-20 12:16:01,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844198820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:01,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:01,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:16:01,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034304402] [2022-11-20 12:16:01,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:01,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:16:01,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:16:01,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:16:01,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:16:01,299 INFO L87 Difference]: Start difference. First operand 559 states and 1701 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:01,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:01,435 INFO L93 Difference]: Finished difference Result 767 states and 2267 transitions. [2022-11-20 12:16:01,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:16:01,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-20 12:16:01,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:01,441 INFO L225 Difference]: With dead ends: 767 [2022-11-20 12:16:01,441 INFO L226 Difference]: Without dead ends: 767 [2022-11-20 12:16:01,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 12:16:01,442 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:01,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:16:01,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2022-11-20 12:16:01,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 765. [2022-11-20 12:16:01,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 763 states have (on average 2.9698558322411532) internal successors, (2266), 764 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:01,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 2266 transitions. [2022-11-20 12:16:01,473 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 2266 transitions. Word has length 25 [2022-11-20 12:16:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:01,474 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 2266 transitions. [2022-11-20 12:16:01,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:01,475 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 2266 transitions. [2022-11-20 12:16:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 12:16:01,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:01,478 INFO L195 NwaCegarLoop]: trace histogram [1, 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 12:16:01,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:01,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:01,693 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:16:01,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:01,693 INFO L85 PathProgramCache]: Analyzing trace with hash -369713361, now seen corresponding path program 2 times [2022-11-20 12:16:01,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:16:01,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497048057] [2022-11-20 12:16:01,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:16:01,694 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 12:16:01,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:16:01,695 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:01,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:01,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:16:01,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:16:01,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:16:01,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:01,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:16:01,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:16:01,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497048057] [2022-11-20 12:16:01,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497048057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:01,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:01,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:16:01,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368777228] [2022-11-20 12:16:01,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:01,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:16:01,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:16:01,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:16:01,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:16:01,915 INFO L87 Difference]: Start difference. First operand 765 states and 2266 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:02,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:02,114 INFO L93 Difference]: Finished difference Result 987 states and 2867 transitions. [2022-11-20 12:16:02,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:16:02,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-20 12:16:02,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:02,120 INFO L225 Difference]: With dead ends: 987 [2022-11-20 12:16:02,120 INFO L226 Difference]: Without dead ends: 987 [2022-11-20 12:16:02,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:16:02,121 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:02,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 10 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:16:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2022-11-20 12:16:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 669. [2022-11-20 12:16:02,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 667 states have (on average 3.0) internal successors, (2001), 668 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:02,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 2001 transitions. [2022-11-20 12:16:02,177 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 2001 transitions. Word has length 25 [2022-11-20 12:16:02,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:02,178 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 2001 transitions. [2022-11-20 12:16:02,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:02,178 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 2001 transitions. [2022-11-20 12:16:02,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 12:16:02,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:02,181 INFO L195 NwaCegarLoop]: trace histogram [1, 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 12:16:02,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:02,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:02,394 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:16:02,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:02,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2021788073, now seen corresponding path program 3 times [2022-11-20 12:16:02,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:16:02,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324824789] [2022-11-20 12:16:02,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:16:02,397 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 12:16:02,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:16:02,398 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:02,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:02,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-20 12:16:02,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:16:02,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:16:02,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:02,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:16:02,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:16:02,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324824789] [2022-11-20 12:16:02,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324824789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:02,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:02,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:16:02,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836114801] [2022-11-20 12:16:02,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:02,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:16:02,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:16:02,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:16:02,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:16:02,576 INFO L87 Difference]: Start difference. First operand 669 states and 2001 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:02,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:02,706 INFO L93 Difference]: Finished difference Result 903 states and 2628 transitions. [2022-11-20 12:16:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:16:02,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-20 12:16:02,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:02,713 INFO L225 Difference]: With dead ends: 903 [2022-11-20 12:16:02,713 INFO L226 Difference]: Without dead ends: 903 [2022-11-20 12:16:02,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 12:16:02,714 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:02,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 7 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:16:02,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-11-20 12:16:02,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 624. [2022-11-20 12:16:02,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 622 states have (on average 3.004823151125402) internal successors, (1869), 623 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:02,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 1869 transitions. [2022-11-20 12:16:02,748 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 1869 transitions. Word has length 25 [2022-11-20 12:16:02,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:02,749 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 1869 transitions. [2022-11-20 12:16:02,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:02,749 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 1869 transitions. [2022-11-20 12:16:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 12:16:02,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:02,752 INFO L195 NwaCegarLoop]: trace histogram [1, 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 12:16:02,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:02,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:02,966 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:16:02,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:02,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1730042907, now seen corresponding path program 4 times [2022-11-20 12:16:02,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:16:02,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464630335] [2022-11-20 12:16:02,968 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 12:16:02,968 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 12:16:02,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:16:02,970 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:02,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:03,139 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 12:16:03,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:16:03,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 12:16:03,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:03,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:16:03,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:16:03,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464630335] [2022-11-20 12:16:03,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464630335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:03,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:03,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:16:03,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568836177] [2022-11-20 12:16:03,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:03,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:16:03,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:16:03,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:16:03,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:16:03,366 INFO L87 Difference]: Start difference. First operand 624 states and 1869 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:03,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:03,676 INFO L93 Difference]: Finished difference Result 710 states and 2068 transitions. [2022-11-20 12:16:03,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:16:03,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-20 12:16:03,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:03,681 INFO L225 Difference]: With dead ends: 710 [2022-11-20 12:16:03,681 INFO L226 Difference]: Without dead ends: 710 [2022-11-20 12:16:03,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:16:03,682 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 37 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:03,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 27 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:16:03,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-20 12:16:03,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 598. [2022-11-20 12:16:03,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 596 states have (on average 3.0167785234899327) internal successors, (1798), 597 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:03,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1798 transitions. [2022-11-20 12:16:03,709 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1798 transitions. Word has length 25 [2022-11-20 12:16:03,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:03,710 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 1798 transitions. [2022-11-20 12:16:03,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1798 transitions. [2022-11-20 12:16:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 12:16:03,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:03,714 INFO L195 NwaCegarLoop]: trace histogram [1, 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 12:16:03,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:03,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:03,933 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-20 12:16:03,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:03,933 INFO L85 PathProgramCache]: Analyzing trace with hash -520512325, now seen corresponding path program 5 times [2022-11-20 12:16:03,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:16:03,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725890624] [2022-11-20 12:16:03,934 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 12:16:03,934 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 12:16:03,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:16:03,936 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:03,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:04,107 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:16:04,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-20 12:16:04,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:16:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:16:04,291 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-20 12:16:04,291 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:16:04,293 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-20 12:16:04,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-20 12:16:04,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-20 12:16:04,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-20 12:16:04,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-20 12:16:04,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-20 12:16:04,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-20 12:16:04,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-20 12:16:04,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-20 12:16:04,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-20 12:16:04,297 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-20 12:16:04,297 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-20 12:16:04,297 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-20 12:16:04,297 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-20 12:16:04,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-20 12:16:04,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-20 12:16:04,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:04,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/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 12:16:04,513 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:04,518 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:16:04,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:16:04,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:16:04 BasicIcfg [2022-11-20 12:16:04,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:16:04,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:16:04,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:16:04,653 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:16:04,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:15:43" (3/4) ... [2022-11-20 12:16:04,657 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:16:04,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:16:04,657 INFO L158 Benchmark]: Toolchain (without parser) took 22552.69ms. Allocated memory was 79.7MB in the beginning and 253.8MB in the end (delta: 174.1MB). Free memory was 55.8MB in the beginning and 136.1MB in the end (delta: -80.3MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. [2022-11-20 12:16:04,658 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:16:04,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 673.42ms. Allocated memory is still 79.7MB. Free memory was 55.8MB in the beginning and 54.0MB in the end (delta: 1.8MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-11-20 12:16:04,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.44ms. Allocated memory is still 79.7MB. Free memory was 54.0MB in the beginning and 51.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:16:04,658 INFO L158 Benchmark]: Boogie Preprocessor took 35.74ms. Allocated memory is still 79.7MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:16:04,659 INFO L158 Benchmark]: RCFGBuilder took 1035.53ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 49.3MB in the beginning and 51.3MB in the end (delta: -2.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-11-20 12:16:04,670 INFO L158 Benchmark]: TraceAbstraction took 20725.75ms. Allocated memory was 98.6MB in the beginning and 253.8MB in the end (delta: 155.2MB). Free memory was 50.6MB in the beginning and 137.2MB in the end (delta: -86.6MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2022-11-20 12:16:04,671 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 253.8MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:16:04,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 673.42ms. Allocated memory is still 79.7MB. Free memory was 55.8MB in the beginning and 54.0MB in the end (delta: 1.8MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.44ms. Allocated memory is still 79.7MB. Free memory was 54.0MB in the beginning and 51.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.74ms. Allocated memory is still 79.7MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1035.53ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 49.3MB in the beginning and 51.3MB in the end (delta: -2.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 20725.75ms. Allocated memory was 98.6MB in the beginning and 253.8MB in the end (delta: 155.2MB). Free memory was 50.6MB in the beginning and 137.2MB in the end (delta: -86.6MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 253.8MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.2s, 160 PlacesBefore, 54 PlacesAfterwards, 149 TransitionsBefore, 42 TransitionsAfterwards, 3352 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 146 TotalNumberOfCompositions, 8303 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4777, independent: 4584, independent conditional: 0, independent unconditional: 4584, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2556, independent: 2489, independent conditional: 0, independent unconditional: 2489, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2556, independent: 2456, independent conditional: 0, independent unconditional: 2456, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 100, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 483, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 373, dependent conditional: 0, dependent unconditional: 373, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4777, independent: 2095, independent conditional: 0, independent unconditional: 2095, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 2556, unknown conditional: 0, unknown unconditional: 2556] , Statistics on independence cache: Total cache size (in pairs): 335, Positive cache size: 308, Positive conditional cache size: 0, Positive unconditional cache size: 308, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L720] 0 int b = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L854] 0 pthread_t t1061; [L855] FCALL, FORK 0 pthread_create(&t1061, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1061, ((void *)0), P0, ((void *)0))=0, t1061={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L856] 0 pthread_t t1062; [L857] FCALL, FORK 0 pthread_create(&t1062, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1062, ((void *)0), P1, ((void *)0))=1, t1061={11:0}, t1062={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L858] 0 pthread_t t1063; [L859] FCALL, FORK 0 pthread_create(&t1063, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1063, ((void *)0), P2, ((void *)0))=2, t1061={11:0}, t1062={15:0}, t1063={9:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L860] 0 pthread_t t1064; [L861] FCALL, FORK 0 pthread_create(&t1064, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1064, ((void *)0), P3, ((void *)0))=3, t1061={11:0}, t1062={15:0}, t1063={9:0}, t1064={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L810] 4 z$w_buff1 = z$w_buff0 [L811] 4 z$w_buff0 = 1 [L812] 4 z$w_buff1_used = z$w_buff0_used [L813] 4 z$w_buff0_used = (_Bool)1 [L814] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L814] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L815] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L816] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L817] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L818] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L819] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L820] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L823] 4 a = 1 [L826] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L829] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L767] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L786] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L787] 3 z$flush_delayed = weak$$choice2 [L788] 3 z$mem_tmp = z [L789] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L790] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L791] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L792] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L793] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L794] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L795] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 __unbuffered_p2_EAX = z [L797] 3 z = z$flush_delayed ? z$mem_tmp : z [L798] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L832] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L833] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L834] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L835] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L836] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L839] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L841] 4 return 0; [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 2 return 0; [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L805] 3 return 0; [L863] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L865] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L865] RET 0 assume_abort_if_not(main$tmp_guard0) [L867] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L868] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L869] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L870] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L871] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1061={11:0}, t1062={15:0}, t1063={9:0}, t1064={-2147483637:0}, weak$$choice0=2, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L874] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L876] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 852]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 857]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 184 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 20.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 467 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 467 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1108 IncrementalHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 61 mSDtfsCounter, 1108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3156occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 711 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 535 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1445 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 12:16:04,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e18a77-7d25-4b15-a53e-58814d4c6ef6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample