./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro --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 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a --- 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-8393723 [2022-11-18 19:52:48,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:52:48,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:52:48,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:52:48,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:52:48,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:52:48,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:52:48,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:52:48,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:52:48,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:52:48,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:52:48,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:52:48,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:52:48,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:52:48,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:52:48,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:52:48,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:52:48,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:52:48,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:52:48,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:52:48,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:52:48,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:52:48,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:52:48,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:52:48,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:52:48,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:52:48,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:52:48,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:52:48,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:52:48,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:52:48,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:52:48,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:52:48,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:52:48,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:52:48,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:52:48,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:52:48,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:52:48,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:52:48,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:52:48,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:52:48,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:52:48,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 19:52:48,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:52:48,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:52:48,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:52:48,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:52:48,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:52:48,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:52:48,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:52:48,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:52:48,793 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:52:48,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:52:48,794 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:52:48,794 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:52:48,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:52:48,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:52:48,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:52:48,795 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 19:52:48,795 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 19:52:48,795 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 19:52:48,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:52:48,796 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:52:48,796 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:52:48,796 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:52:48,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:52:48,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:52:48,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:52:48,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:52:48,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:52:48,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:52:48,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:52:48,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:52:48,798 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_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a [2022-11-18 19:52:49,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:52:49,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:52:49,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:52:49,126 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:52:49,127 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:52:49,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2022-11-18 19:52:49,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/data/9a8885927/9e43f150af444ad8990ffbd95c9c501f/FLAG1002c7331 [2022-11-18 19:52:49,715 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:52:49,717 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2022-11-18 19:52:49,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/data/9a8885927/9e43f150af444ad8990ffbd95c9c501f/FLAG1002c7331 [2022-11-18 19:52:50,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/data/9a8885927/9e43f150af444ad8990ffbd95c9c501f [2022-11-18 19:52:50,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:52:50,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:52:50,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:52:50,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:52:50,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:52:50,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:50,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff01971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50, skipping insertion in model container [2022-11-18 19:52:50,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:50,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:52:50,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:52:50,304 WARN L234 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_9583d066-d502-4a40-98ea-50b86fea1907/sv-benchmarks/c/pthread-wmm/rfi002_tso.i[987,1000] [2022-11-18 19:52:50,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:52:50,701 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:52:50,720 WARN L234 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_9583d066-d502-4a40-98ea-50b86fea1907/sv-benchmarks/c/pthread-wmm/rfi002_tso.i[987,1000] [2022-11-18 19:52:50,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:52:50,872 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:52:50,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50 WrapperNode [2022-11-18 19:52:50,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:52:50,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:52:50,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:52:50,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:52:50,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:50,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:50,964 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 203 [2022-11-18 19:52:50,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:52:50,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:52:50,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:52:50,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:52:50,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:50,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:50,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:50,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:50,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:50,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:51,000 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:51,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:51,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:52:51,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:52:51,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:52:51,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:52:51,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (1/1) ... [2022-11-18 19:52:51,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:52:51,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:52:51,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:52:51,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:52:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:52:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:52:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:52:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:52:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:52:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 19:52:51,141 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 19:52:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 19:52:51,142 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 19:52:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:52:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:52:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:52:51,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:52:51,144 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:52:51,344 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:52:51,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:52:51,918 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:52:52,319 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:52:52,319 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:52:52,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:52 BoogieIcfgContainer [2022-11-18 19:52:52,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:52:52,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:52:52,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:52:52,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:52:52,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:52:50" (1/3) ... [2022-11-18 19:52:52,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dccab6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:52:52, skipping insertion in model container [2022-11-18 19:52:52,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:50" (2/3) ... [2022-11-18 19:52:52,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dccab6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:52:52, skipping insertion in model container [2022-11-18 19:52:52,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:52" (3/3) ... [2022-11-18 19:52:52,331 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2022-11-18 19:52:52,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:52:52,353 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 19:52:52,353 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:52:52,434 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:52:52,482 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 19:52:52,500 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 122 transitions, 254 flow [2022-11-18 19:52:52,505 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 122 transitions, 254 flow [2022-11-18 19:52:52,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 122 transitions, 254 flow [2022-11-18 19:52:52,598 INFO L130 PetriNetUnfolder]: 2/120 cut-off events. [2022-11-18 19:52:52,598 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:52:52,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-11-18 19:52:52,607 INFO L119 LiptonReduction]: Number of co-enabled transitions 1612 [2022-11-18 19:52:59,667 INFO L134 LiptonReduction]: Checked pairs total: 5020 [2022-11-18 19:52:59,668 INFO L136 LiptonReduction]: Total number of compositions: 123 [2022-11-18 19:52:59,677 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 30 transitions, 70 flow [2022-11-18 19:52:59,726 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 376 states, 364 states have (on average 2.7252747252747254) internal successors, (992), 375 states have internal predecessors, (992), 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) [2022-11-18 19:52:59,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:52:59,762 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;@2259a858, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:52:59,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-18 19:52:59,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 376 states, 364 states have (on average 2.7252747252747254) internal successors, (992), 375 states have internal predecessors, (992), 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) [2022-11-18 19:52:59,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 19:52:59,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:59,774 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 19:52:59,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:52:59,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:59,783 INFO L85 PathProgramCache]: Analyzing trace with hash 680, now seen corresponding path program 1 times [2022-11-18 19:52:59,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:59,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444729866] [2022-11-18 19:52:59,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:59,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:59,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:59,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:52:59,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444729866] [2022-11-18 19:52:59,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444729866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:59,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:59,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 19:52:59,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374828137] [2022-11-18 19:52:59,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:59,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:52:59,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:52:59,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:52:59,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:52:59,949 INFO L87 Difference]: Start difference. First operand has 376 states, 364 states have (on average 2.7252747252747254) internal successors, (992), 375 states have internal predecessors, (992), 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) [2022-11-18 19:53:00,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:00,058 INFO L93 Difference]: Finished difference Result 362 states and 914 transitions. [2022-11-18 19:53:00,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:53:00,063 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 [2022-11-18 19:53:00,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:00,085 INFO L225 Difference]: With dead ends: 362 [2022-11-18 19:53:00,086 INFO L226 Difference]: Without dead ends: 362 [2022-11-18 19:53:00,087 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 [2022-11-18 19:53:00,091 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:00,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:53:00,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-18 19:53:00,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-11-18 19:53:00,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 354 states have (on average 2.5819209039548023) internal successors, (914), 361 states have internal predecessors, (914), 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) [2022-11-18 19:53:00,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 914 transitions. [2022-11-18 19:53:00,151 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 914 transitions. Word has length 1 [2022-11-18 19:53:00,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:00,151 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 914 transitions. [2022-11-18 19:53:00,152 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) [2022-11-18 19:53:00,152 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 914 transitions. [2022-11-18 19:53:00,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:53:00,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:00,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:53:00,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:53:00,153 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:00,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:00,154 INFO L85 PathProgramCache]: Analyzing trace with hash 643390963, now seen corresponding path program 1 times [2022-11-18 19:53:00,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:00,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961376320] [2022-11-18 19:53:00,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:00,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:00,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:00,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961376320] [2022-11-18 19:53:00,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961376320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:00,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:00,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:53:00,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013769358] [2022-11-18 19:53:00,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:00,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:53:00,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:00,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:00,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:00,640 INFO L87 Difference]: Start difference. First operand 362 states and 914 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 19:53:00,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:00,753 INFO L93 Difference]: Finished difference Result 320 states and 801 transitions. [2022-11-18 19:53:00,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:00,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-18 19:53:00,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:00,758 INFO L225 Difference]: With dead ends: 320 [2022-11-18 19:53:00,758 INFO L226 Difference]: Without dead ends: 320 [2022-11-18 19:53:00,759 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 [2022-11-18 19:53:00,760 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:00,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:53:00,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-11-18 19:53:00,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2022-11-18 19:53:00,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 2.5428571428571427) internal successors, (801), 319 states have internal predecessors, (801), 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) [2022-11-18 19:53:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 801 transitions. [2022-11-18 19:53:00,792 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 801 transitions. Word has length 5 [2022-11-18 19:53:00,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:00,792 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 801 transitions. [2022-11-18 19:53:00,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 19:53:00,793 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 801 transitions. [2022-11-18 19:53:00,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:53:00,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:00,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:53:00,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:53:00,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:00,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:00,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1529716080, now seen corresponding path program 1 times [2022-11-18 19:53:00,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:00,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067058946] [2022-11-18 19:53:00,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:00,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:01,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:01,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067058946] [2022-11-18 19:53:01,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067058946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:01,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:01,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:53:01,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678011365] [2022-11-18 19:53:01,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:01,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:53:01,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:01,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:01,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:01,041 INFO L87 Difference]: Start difference. First operand 320 states and 801 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-18 19:53:01,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:01,130 INFO L93 Difference]: Finished difference Result 278 states and 688 transitions. [2022-11-18 19:53:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:01,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-18 19:53:01,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:01,133 INFO L225 Difference]: With dead ends: 278 [2022-11-18 19:53:01,133 INFO L226 Difference]: Without dead ends: 266 [2022-11-18 19:53:01,133 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 [2022-11-18 19:53:01,134 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:01,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:53:01,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-11-18 19:53:01,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-11-18 19:53:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 264 states have (on average 2.5) internal successors, (660), 265 states have internal predecessors, (660), 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) [2022-11-18 19:53:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 660 transitions. [2022-11-18 19:53:01,153 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 660 transitions. Word has length 6 [2022-11-18 19:53:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:01,153 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 660 transitions. [2022-11-18 19:53:01,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-18 19:53:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 660 transitions. [2022-11-18 19:53:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:53:01,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:01,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:01,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:53:01,155 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:01,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:01,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1176558165, now seen corresponding path program 1 times [2022-11-18 19:53:01,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:01,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468947338] [2022-11-18 19:53:01,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:01,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:01,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:01,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:01,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468947338] [2022-11-18 19:53:01,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468947338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:01,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:01,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:53:01,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260505350] [2022-11-18 19:53:01,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:01,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:53:01,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:01,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:53:01,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:53:01,641 INFO L87 Difference]: Start difference. First operand 266 states and 660 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-18 19:53:01,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:01,857 INFO L93 Difference]: Finished difference Result 224 states and 547 transitions. [2022-11-18 19:53:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:53:01,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-18 19:53:01,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:01,859 INFO L225 Difference]: With dead ends: 224 [2022-11-18 19:53:01,859 INFO L226 Difference]: Without dead ends: 224 [2022-11-18 19:53:01,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:53:01,860 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:01,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:53:01,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-11-18 19:53:01,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-11-18 19:53:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 2.4529147982062782) internal successors, (547), 223 states have internal predecessors, (547), 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) [2022-11-18 19:53:01,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 547 transitions. [2022-11-18 19:53:01,868 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 547 transitions. Word has length 8 [2022-11-18 19:53:01,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:01,868 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 547 transitions. [2022-11-18 19:53:01,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-18 19:53:01,869 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 547 transitions. [2022-11-18 19:53:01,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:53:01,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:01,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:01,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:53:01,879 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:01,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:01,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1176558199, now seen corresponding path program 1 times [2022-11-18 19:53:01,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:01,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175558726] [2022-11-18 19:53:01,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:01,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:02,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:02,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:02,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175558726] [2022-11-18 19:53:02,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175558726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:02,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:02,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:02,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248044016] [2022-11-18 19:53:02,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:02,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:53:02,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:02,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:53:02,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:53:02,565 INFO L87 Difference]: Start difference. First operand 224 states and 547 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-18 19:53:02,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:02,792 INFO L93 Difference]: Finished difference Result 230 states and 534 transitions. [2022-11-18 19:53:02,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:53:02,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-18 19:53:02,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:02,794 INFO L225 Difference]: With dead ends: 230 [2022-11-18 19:53:02,794 INFO L226 Difference]: Without dead ends: 188 [2022-11-18 19:53:02,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:53:02,795 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:02,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:53:02,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-18 19:53:02,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-11-18 19:53:02,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 2.379679144385027) internal successors, (445), 187 states have internal predecessors, (445), 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) [2022-11-18 19:53:02,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 445 transitions. [2022-11-18 19:53:02,801 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 445 transitions. Word has length 8 [2022-11-18 19:53:02,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:02,801 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 445 transitions. [2022-11-18 19:53:02,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-18 19:53:02,802 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 445 transitions. [2022-11-18 19:53:02,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:53:02,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:02,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:02,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:53:02,811 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:02,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:02,812 INFO L85 PathProgramCache]: Analyzing trace with hash -563041091, now seen corresponding path program 1 times [2022-11-18 19:53:02,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:02,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227172482] [2022-11-18 19:53:02,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:02,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:03,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:03,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:03,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227172482] [2022-11-18 19:53:03,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227172482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:03,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:03,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:03,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315324953] [2022-11-18 19:53:03,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:03,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:53:03,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:03,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:53:03,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:53:03,510 INFO L87 Difference]: Start difference. First operand 188 states and 445 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-11-18 19:53:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:03,698 INFO L93 Difference]: Finished difference Result 188 states and 429 transitions. [2022-11-18 19:53:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:53:03,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2022-11-18 19:53:03,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:03,700 INFO L225 Difference]: With dead ends: 188 [2022-11-18 19:53:03,700 INFO L226 Difference]: Without dead ends: 164 [2022-11-18 19:53:03,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:53:03,701 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:03,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:53:03,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-18 19:53:03,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-11-18 19:53:03,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 163 states have (on average 2.3251533742331287) internal successors, (379), 163 states have internal predecessors, (379), 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) [2022-11-18 19:53:03,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 379 transitions. [2022-11-18 19:53:03,707 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 379 transitions. Word has length 11 [2022-11-18 19:53:03,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:03,708 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 379 transitions. [2022-11-18 19:53:03,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-11-18 19:53:03,708 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 379 transitions. [2022-11-18 19:53:03,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 19:53:03,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:03,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:03,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:53:03,710 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:03,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:03,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1727099452, now seen corresponding path program 1 times [2022-11-18 19:53:03,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:03,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495188173] [2022-11-18 19:53:03,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:03,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:05,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:05,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495188173] [2022-11-18 19:53:05,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495188173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:05,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:05,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:53:05,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192388989] [2022-11-18 19:53:05,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:05,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:53:05,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:05,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:53:05,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:53:05,560 INFO L87 Difference]: Start difference. First operand 164 states and 379 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2022-11-18 19:53:06,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:06,168 INFO L93 Difference]: Finished difference Result 302 states and 687 transitions. [2022-11-18 19:53:06,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:53:06,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 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 [2022-11-18 19:53:06,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:06,173 INFO L225 Difference]: With dead ends: 302 [2022-11-18 19:53:06,174 INFO L226 Difference]: Without dead ends: 211 [2022-11-18 19:53:06,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:53:06,175 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:06,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:53:06,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-18 19:53:06,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 149. [2022-11-18 19:53:06,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 2.27027027027027) internal successors, (336), 148 states have internal predecessors, (336), 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) [2022-11-18 19:53:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 336 transitions. [2022-11-18 19:53:06,182 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 336 transitions. Word has length 14 [2022-11-18 19:53:06,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:06,183 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 336 transitions. [2022-11-18 19:53:06,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2022-11-18 19:53:06,183 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 336 transitions. [2022-11-18 19:53:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:53:06,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:06,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:06,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:53:06,185 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:06,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:06,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2000543611, now seen corresponding path program 1 times [2022-11-18 19:53:06,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:06,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241847359] [2022-11-18 19:53:06,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:06,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:07,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:07,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241847359] [2022-11-18 19:53:07,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241847359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:07,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:07,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:53:07,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20620427] [2022-11-18 19:53:07,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:07,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:07,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:07,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:07,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:07,716 INFO L87 Difference]: Start difference. First operand 149 states and 336 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) [2022-11-18 19:53:08,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:08,716 INFO L93 Difference]: Finished difference Result 383 states and 840 transitions. [2022-11-18 19:53:08,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:53:08,720 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 [2022-11-18 19:53:08,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:08,722 INFO L225 Difference]: With dead ends: 383 [2022-11-18 19:53:08,722 INFO L226 Difference]: Without dead ends: 257 [2022-11-18 19:53:08,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:53:08,723 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 87 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:08,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 0 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 19:53:08,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-11-18 19:53:08,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 149. [2022-11-18 19:53:08,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 2.2094594594594597) internal successors, (327), 148 states have internal predecessors, (327), 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) [2022-11-18 19:53:08,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 327 transitions. [2022-11-18 19:53:08,730 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 327 transitions. Word has length 15 [2022-11-18 19:53:08,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:08,732 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 327 transitions. [2022-11-18 19:53:08,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) [2022-11-18 19:53:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 327 transitions. [2022-11-18 19:53:08,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:53:08,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:08,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:08,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:53:08,739 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:08,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:08,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1651132649, now seen corresponding path program 2 times [2022-11-18 19:53:08,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:08,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023153943] [2022-11-18 19:53:08,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:08,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:09,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:09,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:09,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023153943] [2022-11-18 19:53:09,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023153943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:09,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:09,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:53:09,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367970987] [2022-11-18 19:53:09,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:09,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:53:09,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:09,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:53:09,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:53:09,911 INFO L87 Difference]: Start difference. First operand 149 states and 327 transitions. Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2022-11-18 19:53:10,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:10,701 INFO L93 Difference]: Finished difference Result 256 states and 534 transitions. [2022-11-18 19:53:10,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:53:10,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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 [2022-11-18 19:53:10,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:10,703 INFO L225 Difference]: With dead ends: 256 [2022-11-18 19:53:10,703 INFO L226 Difference]: Without dead ends: 197 [2022-11-18 19:53:10,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:53:10,704 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 95 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:10,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 0 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:53:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-18 19:53:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 163. [2022-11-18 19:53:10,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 2.1666666666666665) internal successors, (351), 162 states have internal predecessors, (351), 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) [2022-11-18 19:53:10,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 351 transitions. [2022-11-18 19:53:10,713 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 351 transitions. Word has length 15 [2022-11-18 19:53:10,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:10,714 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 351 transitions. [2022-11-18 19:53:10,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2022-11-18 19:53:10,714 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 351 transitions. [2022-11-18 19:53:10,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:53:10,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:10,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:10,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:53:10,717 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:10,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:10,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1678194229, now seen corresponding path program 3 times [2022-11-18 19:53:10,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:10,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832983869] [2022-11-18 19:53:10,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:10,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:12,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:12,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:12,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832983869] [2022-11-18 19:53:12,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832983869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:12,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:12,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:53:12,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661682941] [2022-11-18 19:53:12,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:12,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:12,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:12,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:12,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:12,234 INFO L87 Difference]: Start difference. First operand 163 states and 351 transitions. Second operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2022-11-18 19:53:13,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:13,056 INFO L93 Difference]: Finished difference Result 210 states and 431 transitions. [2022-11-18 19:53:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:53:13,057 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 [2022-11-18 19:53:13,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:13,058 INFO L225 Difference]: With dead ends: 210 [2022-11-18 19:53:13,058 INFO L226 Difference]: Without dead ends: 184 [2022-11-18 19:53:13,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:53:13,059 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 81 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:13,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 0 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:53:13,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-18 19:53:13,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 159. [2022-11-18 19:53:13,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 2.151898734177215) internal successors, (340), 158 states have internal predecessors, (340), 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) [2022-11-18 19:53:13,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 340 transitions. [2022-11-18 19:53:13,066 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 340 transitions. Word has length 15 [2022-11-18 19:53:13,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:13,067 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 340 transitions. [2022-11-18 19:53:13,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2022-11-18 19:53:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 340 transitions. [2022-11-18 19:53:13,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:53:13,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:13,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:13,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:53:13,068 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:13,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:13,069 INFO L85 PathProgramCache]: Analyzing trace with hash -952056683, now seen corresponding path program 4 times [2022-11-18 19:53:13,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:13,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344258420] [2022-11-18 19:53:13,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:13,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:14,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:14,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344258420] [2022-11-18 19:53:14,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344258420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:14,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:14,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:53:14,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538595645] [2022-11-18 19:53:14,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:14,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:14,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:14,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:14,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:14,139 INFO L87 Difference]: Start difference. First operand 159 states and 340 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) [2022-11-18 19:53:14,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:14,676 INFO L93 Difference]: Finished difference Result 190 states and 391 transitions. [2022-11-18 19:53:14,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:53:14,677 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 [2022-11-18 19:53:14,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:14,678 INFO L225 Difference]: With dead ends: 190 [2022-11-18 19:53:14,678 INFO L226 Difference]: Without dead ends: 148 [2022-11-18 19:53:14,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:53:14,679 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:14,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 0 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:53:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-11-18 19:53:14,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 134. [2022-11-18 19:53:14,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 2.1503759398496243) internal successors, (286), 133 states have internal predecessors, (286), 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) [2022-11-18 19:53:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 286 transitions. [2022-11-18 19:53:14,684 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 286 transitions. Word has length 15 [2022-11-18 19:53:14,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:14,684 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 286 transitions. [2022-11-18 19:53:14,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) [2022-11-18 19:53:14,684 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 286 transitions. [2022-11-18 19:53:14,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:14,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:14,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:14,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:53:14,685 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:14,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:14,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1872079043, now seen corresponding path program 1 times [2022-11-18 19:53:14,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:14,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285191600] [2022-11-18 19:53:14,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:14,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:15,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:15,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285191600] [2022-11-18 19:53:15,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285191600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:15,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:15,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:53:15,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715281601] [2022-11-18 19:53:15,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:15,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:53:15,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:15,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:53:15,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:53:15,451 INFO L87 Difference]: Start difference. First operand 134 states and 286 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2022-11-18 19:53:15,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:15,825 INFO L93 Difference]: Finished difference Result 190 states and 392 transitions. [2022-11-18 19:53:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:53:15,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 [2022-11-18 19:53:15,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:15,832 INFO L225 Difference]: With dead ends: 190 [2022-11-18 19:53:15,832 INFO L226 Difference]: Without dead ends: 145 [2022-11-18 19:53:15,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:53:15,835 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:15,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:53:15,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-18 19:53:15,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2022-11-18 19:53:15,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 2.078014184397163) internal successors, (293), 141 states have internal predecessors, (293), 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) [2022-11-18 19:53:15,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 293 transitions. [2022-11-18 19:53:15,842 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 293 transitions. Word has length 16 [2022-11-18 19:53:15,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:15,844 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 293 transitions. [2022-11-18 19:53:15,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2022-11-18 19:53:15,844 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 293 transitions. [2022-11-18 19:53:15,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:15,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:15,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:15,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:53:15,847 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:15,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:15,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1538537291, now seen corresponding path program 2 times [2022-11-18 19:53:15,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:15,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217680502] [2022-11-18 19:53:15,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:15,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:16,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:16,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217680502] [2022-11-18 19:53:16,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217680502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:16,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:16,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:53:16,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783091235] [2022-11-18 19:53:16,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:16,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:53:16,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:16,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:53:16,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:53:16,493 INFO L87 Difference]: Start difference. First operand 142 states and 293 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2022-11-18 19:53:16,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:16,732 INFO L93 Difference]: Finished difference Result 161 states and 322 transitions. [2022-11-18 19:53:16,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:53:16,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 [2022-11-18 19:53:16,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:16,734 INFO L225 Difference]: With dead ends: 161 [2022-11-18 19:53:16,734 INFO L226 Difference]: Without dead ends: 134 [2022-11-18 19:53:16,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:53:16,735 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:16,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:53:16,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-18 19:53:16,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 128. [2022-11-18 19:53:16,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 2.1023622047244093) internal successors, (267), 127 states have internal predecessors, (267), 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) [2022-11-18 19:53:16,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 267 transitions. [2022-11-18 19:53:16,740 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 267 transitions. Word has length 16 [2022-11-18 19:53:16,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:16,740 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 267 transitions. [2022-11-18 19:53:16,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2022-11-18 19:53:16,740 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 267 transitions. [2022-11-18 19:53:16,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:16,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:16,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:16,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:53:16,741 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-11-18 19:53:16,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:16,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1877545957, now seen corresponding path program 3 times [2022-11-18 19:53:16,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:16,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706099317] [2022-11-18 19:53:16,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:16,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:17,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:17,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:17,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706099317] [2022-11-18 19:53:17,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706099317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:17,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:17,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:53:17,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062594814] [2022-11-18 19:53:17,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:17,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:53:17,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:17,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:53:17,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:53:17,558 INFO L87 Difference]: Start difference. First operand 128 states and 267 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 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) [2022-11-18 19:53:17,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:17,817 INFO L93 Difference]: Finished difference Result 120 states and 249 transitions. [2022-11-18 19:53:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:53:17,817 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 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 [2022-11-18 19:53:17,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:17,818 INFO L225 Difference]: With dead ends: 120 [2022-11-18 19:53:17,818 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:53:17,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:17,819 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:17,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 0 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:53:17,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:53:17,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:53:17,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-18 19:53:17,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:53:17,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-11-18 19:53:17,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:17,820 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:53:17,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 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) [2022-11-18 19:53:17,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:53:17,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:53:17,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2022-11-18 19:53:17,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (10 of 12 remaining) [2022-11-18 19:53:17,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2022-11-18 19:53:17,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2022-11-18 19:53:17,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2022-11-18 19:53:17,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2022-11-18 19:53:17,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (5 of 12 remaining) [2022-11-18 19:53:17,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (4 of 12 remaining) [2022-11-18 19:53:17,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2022-11-18 19:53:17,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2022-11-18 19:53:17,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2022-11-18 19:53:17,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2022-11-18 19:53:17,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:53:17,828 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:17,834 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:53:17,834 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:53:17,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:53:17 BasicIcfg [2022-11-18 19:53:17,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:53:17,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:53:17,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:53:17,838 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:53:17,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:52" (3/4) ... [2022-11-18 19:53:17,841 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:53:17,846 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-18 19:53:17,846 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-18 19:53:17,852 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2022-11-18 19:53:17,852 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-18 19:53:17,852 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 19:53:17,853 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:53:17,889 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:53:17,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:53:17,890 INFO L158 Benchmark]: Toolchain (without parser) took 27866.73ms. Allocated memory was 94.4MB in the beginning and 421.5MB in the end (delta: 327.2MB). Free memory was 59.2MB in the beginning and 178.7MB in the end (delta: -119.6MB). Peak memory consumption was 206.4MB. Max. memory is 16.1GB. [2022-11-18 19:53:17,891 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory was 63.5MB in the beginning and 63.4MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:53:17,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 848.90ms. Allocated memory is still 94.4MB. Free memory was 59.0MB in the beginning and 54.1MB in the end (delta: 4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:53:17,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.07ms. Allocated memory is still 94.4MB. Free memory was 54.1MB in the beginning and 50.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:53:17,892 INFO L158 Benchmark]: Boogie Preprocessor took 40.55ms. Allocated memory is still 94.4MB. Free memory was 50.4MB in the beginning and 47.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:53:17,892 INFO L158 Benchmark]: RCFGBuilder took 1311.96ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 47.9MB in the beginning and 85.5MB in the end (delta: -37.6MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2022-11-18 19:53:17,893 INFO L158 Benchmark]: TraceAbstraction took 25512.22ms. Allocated memory was 115.3MB in the beginning and 421.5MB in the end (delta: 306.2MB). Free memory was 84.7MB in the beginning and 182.9MB in the end (delta: -98.2MB). Peak memory consumption was 208.8MB. Max. memory is 16.1GB. [2022-11-18 19:53:17,893 INFO L158 Benchmark]: Witness Printer took 52.68ms. Allocated memory is still 421.5MB. Free memory was 182.9MB in the beginning and 178.7MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:53:17,895 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory was 63.5MB in the beginning and 63.4MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 848.90ms. Allocated memory is still 94.4MB. Free memory was 59.0MB in the beginning and 54.1MB in the end (delta: 4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.07ms. Allocated memory is still 94.4MB. Free memory was 54.1MB in the beginning and 50.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.55ms. Allocated memory is still 94.4MB. Free memory was 50.4MB in the beginning and 47.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1311.96ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 47.9MB in the beginning and 85.5MB in the end (delta: -37.6MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * TraceAbstraction took 25512.22ms. Allocated memory was 115.3MB in the beginning and 421.5MB in the end (delta: 306.2MB). Free memory was 84.7MB in the beginning and 182.9MB in the end (delta: -98.2MB). Peak memory consumption was 208.8MB. Max. memory is 16.1GB. * Witness Printer took 52.68ms. Allocated memory is still 421.5MB. Free memory was 182.9MB in the beginning and 178.7MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 127 PlacesBefore, 36 PlacesAfterwards, 122 TransitionsBefore, 30 TransitionsAfterwards, 1612 CoEnabledTransitionPairs, 7 FixpointIterations, 66 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 123 TotalNumberOfCompositions, 5020 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2027, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1052, independent: 999, independent conditional: 0, independent unconditional: 999, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1052, independent: 956, independent conditional: 0, independent unconditional: 956, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 96, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 873, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 816, dependent conditional: 0, dependent unconditional: 816, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2027, independent: 841, independent conditional: 0, independent unconditional: 841, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 1052, unknown conditional: 0, unknown unconditional: 1052] , Statistics on independence cache: Total cache size (in pairs): 136, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, 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 - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 874]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 144 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 25.3s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 541 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 541 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 255 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1908 IncrementalHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 255 mSolverCounterUnsat, 0 mSDtfsCounter, 1908 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=376occurred in iteration=0, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 252 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 2421 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 19:53:17,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9583d066-d502-4a40-98ea-50b86fea1907/bin/uautomizer-TMbwUNV5ro/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 Writing output log to file Ultimate.log Result: TRUE