./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/insertionSort_recursive.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 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_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/insertionSort_recursive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS --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 64bit --witnessprinter.graph.data.programhash 1ae4a3f744c0a8577333c2c3dfb4ecaabbd2cf6e1675b06577194a98b8d1aee1 --- 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-4e7fbc6 [2022-11-23 03:17:47,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:17:47,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:17:47,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:17:47,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:17:47,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:17:47,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:17:47,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:17:47,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:17:47,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:17:47,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:17:47,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:17:47,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:17:47,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:17:47,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:17:47,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:17:47,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:17:47,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:17:47,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:17:47,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:17:47,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:17:47,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:17:47,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:17:47,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:17:47,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:17:47,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:17:47,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:17:47,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:17:47,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:17:47,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:17:47,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:17:47,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:17:47,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:17:47,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:17:47,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:17:47,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:17:47,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:17:47,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:17:47,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:17:47,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:17:47,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:17:47,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2022-11-23 03:17:47,714 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:17:47,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:17:47,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:17:47,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:17:47,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:17:47,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:17:47,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:17:47,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:17:47,719 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:17:47,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:17:47,721 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:17:47,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:17:47,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:17:47,722 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 03:17:47,722 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 03:17:47,722 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 03:17:47,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:17:47,723 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 03:17:47,723 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:17:47,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:17:47,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:17:47,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:17:47,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:17:47,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:17:47,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:17:47,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:17:47,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:17:47,725 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:17:47,726 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:17:47,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:17:47,727 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ae4a3f744c0a8577333c2c3dfb4ecaabbd2cf6e1675b06577194a98b8d1aee1 [2022-11-23 03:17:48,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:17:48,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:17:48,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:17:48,127 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:17:48,128 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:17:48,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-recursive-malloc/insertionSort_recursive.i [2022-11-23 03:17:51,839 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:17:52,131 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:17:52,132 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/sv-benchmarks/c/termination-recursive-malloc/insertionSort_recursive.i [2022-11-23 03:17:52,140 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/data/ba157943f/27257b02e2744154bc9108a18d327fc1/FLAG59b61bf42 [2022-11-23 03:17:52,164 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/data/ba157943f/27257b02e2744154bc9108a18d327fc1 [2022-11-23 03:17:52,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:17:52,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:17:52,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:17:52,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:17:52,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:17:52,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff83552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52, skipping insertion in model container [2022-11-23 03:17:52,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:17:52,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:17:52,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:17:52,497 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:17:52,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:17:52,557 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:17:52,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52 WrapperNode [2022-11-23 03:17:52,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:17:52,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:17:52,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:17:52,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:17:52,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,618 INFO L138 Inliner]: procedures = 11, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-23 03:17:52,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:17:52,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:17:52,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:17:52,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:17:52,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,664 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:17:52,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:17:52,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:17:52,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:17:52,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (1/1) ... [2022-11-23 03:17:52,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:17:52,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:17:52,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:17:52,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:17:52,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:17:52,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:17:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure insertionSort [2022-11-23 03:17:52,796 INFO L138 BoogieDeclarations]: Found implementation of procedure insertionSort [2022-11-23 03:17:52,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:17:52,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:17:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:17:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:17:52,910 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:17:52,912 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:17:53,262 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:17:53,270 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:17:53,271 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 03:17:53,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:53 BoogieIcfgContainer [2022-11-23 03:17:53,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:17:53,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:17:53,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:17:53,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:17:53,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:17:52" (1/3) ... [2022-11-23 03:17:53,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371a00f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:53, skipping insertion in model container [2022-11-23 03:17:53,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:52" (2/3) ... [2022-11-23 03:17:53,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371a00f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:53, skipping insertion in model container [2022-11-23 03:17:53,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:53" (3/3) ... [2022-11-23 03:17:53,285 INFO L112 eAbstractionObserver]: Analyzing ICFG insertionSort_recursive.i [2022-11-23 03:17:53,310 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:17:53,310 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-23 03:17:53,439 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:17:53,448 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=PETRI_NET, 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;@2ec01a1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:17:53,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-23 03:17:53,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 29 states have (on average 1.793103448275862) internal successors, (52), 45 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:17:53,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 03:17:53,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:53,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 03:17:53,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:53,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:53,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2434047, now seen corresponding path program 1 times [2022-11-23 03:17:53,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:53,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358241025] [2022-11-23 03:17:53,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:53,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:53,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:53,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358241025] [2022-11-23 03:17:53,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358241025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:53,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:17:53,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:17:53,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026724646] [2022-11-23 03:17:53,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:53,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:17:53,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:53,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:17:53,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:17:53,827 INFO L87 Difference]: Start difference. First operand has 49 states, 29 states have (on average 1.793103448275862) internal successors, (52), 45 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-23 03:17:53,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:53,956 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2022-11-23 03:17:53,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:17:53,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-23 03:17:53,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:53,975 INFO L225 Difference]: With dead ends: 50 [2022-11-23 03:17:53,976 INFO L226 Difference]: Without dead ends: 47 [2022-11-23 03:17:53,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:17:53,987 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:53,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 85 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:17:54,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-23 03:17:54,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-23 03:17:54,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 43 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:17:54,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2022-11-23 03:17:54,061 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 4 [2022-11-23 03:17:54,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:54,062 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2022-11-23 03:17:54,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-23 03:17:54,063 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-11-23 03:17:54,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:17:54,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:54,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:17:54,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:17:54,066 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:54,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:54,067 INFO L85 PathProgramCache]: Analyzing trace with hash 75456887, now seen corresponding path program 1 times [2022-11-23 03:17:54,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:54,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727453408] [2022-11-23 03:17:54,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:54,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:54,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:54,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:54,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727453408] [2022-11-23 03:17:54,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727453408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:54,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:17:54,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:17:54,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51198868] [2022-11-23 03:17:54,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:54,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:17:54,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:54,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:17:54,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:17:54,279 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-23 03:17:54,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:54,357 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-11-23 03:17:54,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:17:54,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-11-23 03:17:54,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:54,362 INFO L225 Difference]: With dead ends: 45 [2022-11-23 03:17:54,363 INFO L226 Difference]: Without dead ends: 45 [2022-11-23 03:17:54,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:17:54,372 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 9 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:54,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 66 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:17:54,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-23 03:17:54,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-23 03:17:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 41 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:17:54,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-11-23 03:17:54,392 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 5 [2022-11-23 03:17:54,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:54,395 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-11-23 03:17:54,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-23 03:17:54,396 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-11-23 03:17:54,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:17:54,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:54,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:17:54,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:17:54,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:54,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:54,406 INFO L85 PathProgramCache]: Analyzing trace with hash 75456888, now seen corresponding path program 1 times [2022-11-23 03:17:54,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:54,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035689233] [2022-11-23 03:17:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:54,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:54,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:54,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:54,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035689233] [2022-11-23 03:17:54,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035689233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:54,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:17:54,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:17:54,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613549037] [2022-11-23 03:17:54,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:54,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:17:54,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:54,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:17:54,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:17:54,757 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 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) [2022-11-23 03:17:54,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:54,903 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2022-11-23 03:17:54,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:17:54,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 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 [2022-11-23 03:17:54,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:54,906 INFO L225 Difference]: With dead ends: 56 [2022-11-23 03:17:54,906 INFO L226 Difference]: Without dead ends: 56 [2022-11-23 03:17:54,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:17:54,908 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 23 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:54,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 125 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:17:54,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-23 03:17:54,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2022-11-23 03:17:54,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 44 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:17:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-11-23 03:17:54,917 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 5 [2022-11-23 03:17:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:54,918 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-11-23 03:17:54,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 5 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) [2022-11-23 03:17:54,918 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-11-23 03:17:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 03:17:54,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:54,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:17:54,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:17:54,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:54,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:54,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1667003476, now seen corresponding path program 1 times [2022-11-23 03:17:54,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:54,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762663400] [2022-11-23 03:17:54,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:54,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:55,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:55,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:55,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762663400] [2022-11-23 03:17:55,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762663400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:55,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:17:55,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:17:55,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136197598] [2022-11-23 03:17:55,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:55,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:17:55,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:55,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:17:55,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:17:55,054 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:55,092 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2022-11-23 03:17:55,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:17:55,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 03:17:55,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:55,094 INFO L225 Difference]: With dead ends: 49 [2022-11-23 03:17:55,110 INFO L226 Difference]: Without dead ends: 49 [2022-11-23 03:17:55,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:17:55,112 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 3 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:55,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 87 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:17:55,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-23 03:17:55,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2022-11-23 03:17:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 43 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:17:55,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2022-11-23 03:17:55,121 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 8 [2022-11-23 03:17:55,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:55,122 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2022-11-23 03:17:55,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:55,122 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-11-23 03:17:55,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 03:17:55,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:55,123 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:17:55,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:17:55,124 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:55,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:55,125 INFO L85 PathProgramCache]: Analyzing trace with hash 176533115, now seen corresponding path program 1 times [2022-11-23 03:17:55,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:55,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890841611] [2022-11-23 03:17:55,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:55,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:55,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:55,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:55,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890841611] [2022-11-23 03:17:55,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890841611] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:17:55,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777931563] [2022-11-23 03:17:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:55,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:17:55,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:17:55,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:17:55,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:17:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:55,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 03:17:55,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:17:55,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-23 03:17:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:56,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:17:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:56,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777931563] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:17:56,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:17:56,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2022-11-23 03:17:56,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888801054] [2022-11-23 03:17:56,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:17:56,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 03:17:56,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:56,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 03:17:56,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:17:56,677 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:57,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:57,026 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2022-11-23 03:17:57,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:17:57,029 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 03:17:57,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:57,030 INFO L225 Difference]: With dead ends: 47 [2022-11-23 03:17:57,030 INFO L226 Difference]: Without dead ends: 47 [2022-11-23 03:17:57,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:17:57,032 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 40 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:57,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 227 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:17:57,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-23 03:17:57,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2022-11-23 03:17:57,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 40 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:17:57,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-11-23 03:17:57,052 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 9 [2022-11-23 03:17:57,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:57,053 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-11-23 03:17:57,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:57,054 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-11-23 03:17:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 03:17:57,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:57,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:17:57,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:17:57,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:17:57,262 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:57,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:57,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2056807537, now seen corresponding path program 1 times [2022-11-23 03:17:57,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:57,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868158455] [2022-11-23 03:17:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:57,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:57,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:57,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868158455] [2022-11-23 03:17:57,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868158455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:57,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:17:57,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:17:57,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081190091] [2022-11-23 03:17:57,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:57,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:17:57,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:57,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:17:57,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:17:57,349 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:57,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:57,437 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-11-23 03:17:57,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:17:57,438 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 03:17:57,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:57,442 INFO L225 Difference]: With dead ends: 39 [2022-11-23 03:17:57,442 INFO L226 Difference]: Without dead ends: 39 [2022-11-23 03:17:57,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:17:57,453 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 52 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:57,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 49 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:17:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-23 03:17:57,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-23 03:17:57,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 35 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:17:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-23 03:17:57,459 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 12 [2022-11-23 03:17:57,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:57,459 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-23 03:17:57,459 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:57,459 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-23 03:17:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 03:17:57,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:57,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:17:57,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:17:57,461 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:57,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:57,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2056807538, now seen corresponding path program 1 times [2022-11-23 03:17:57,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:57,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017267610] [2022-11-23 03:17:57,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:57,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:57,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:57,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017267610] [2022-11-23 03:17:57,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017267610] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:17:57,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044095044] [2022-11-23 03:17:57,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:57,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:17:57,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:17:57,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:17:57,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:17:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:57,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 03:17:57,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:17:57,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 03:17:58,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:58,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:17:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:58,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044095044] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 03:17:58,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:17:58,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 13 [2022-11-23 03:17:58,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984012399] [2022-11-23 03:17:58,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:58,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:17:58,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:58,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:17:58,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:17:58,171 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:58,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:58,357 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2022-11-23 03:17:58,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:17:58,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 03:17:58,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:58,360 INFO L225 Difference]: With dead ends: 65 [2022-11-23 03:17:58,360 INFO L226 Difference]: Without dead ends: 65 [2022-11-23 03:17:58,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:17:58,364 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 72 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:58,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 78 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:17:58,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-23 03:17:58,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 58. [2022-11-23 03:17:58,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 52 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:17:58,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2022-11-23 03:17:58,382 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 12 [2022-11-23 03:17:58,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:58,382 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2022-11-23 03:17:58,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:58,383 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2022-11-23 03:17:58,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 03:17:58,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:58,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:17:58,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 03:17:58,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:17:58,593 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:58,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:58,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1903997848, now seen corresponding path program 1 times [2022-11-23 03:17:58,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:58,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476171079] [2022-11-23 03:17:58,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:58,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:58,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 03:17:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:17:58,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:58,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476171079] [2022-11-23 03:17:58,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476171079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:58,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:17:58,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:17:58,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027210946] [2022-11-23 03:17:58,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:58,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:17:58,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:58,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:17:58,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:17:58,648 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:17:58,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:58,702 INFO L93 Difference]: Finished difference Result 81 states and 101 transitions. [2022-11-23 03:17:58,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:17:58,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-23 03:17:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:58,705 INFO L225 Difference]: With dead ends: 81 [2022-11-23 03:17:58,706 INFO L226 Difference]: Without dead ends: 81 [2022-11-23 03:17:58,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:17:58,707 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 22 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:58,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 79 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:17:58,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-23 03:17:58,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 57. [2022-11-23 03:17:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 51 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:17:58,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2022-11-23 03:17:58,716 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 15 [2022-11-23 03:17:58,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:58,717 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2022-11-23 03:17:58,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:17:58,717 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2022-11-23 03:17:58,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 03:17:58,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:58,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:17:58,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:17:58,719 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting insertionSortErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:58,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:58,720 INFO L85 PathProgramCache]: Analyzing trace with hash -168557033, now seen corresponding path program 1 times [2022-11-23 03:17:58,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:58,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743875175] [2022-11-23 03:17:58,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:58,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:58,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:17:58,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:58,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743875175] [2022-11-23 03:17:58,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743875175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:58,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:17:58,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:17:58,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540034999] [2022-11-23 03:17:58,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:58,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:17:58,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:58,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:17:58,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:17:58,797 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:58,909 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2022-11-23 03:17:58,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:17:58,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-23 03:17:58,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:58,913 INFO L225 Difference]: With dead ends: 55 [2022-11-23 03:17:58,913 INFO L226 Difference]: Without dead ends: 55 [2022-11-23 03:17:58,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:17:58,914 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 31 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:58,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 150 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:17:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-23 03:17:58,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2022-11-23 03:17:58,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 46 states have internal predecessors, (52), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:17:58,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2022-11-23 03:17:58,920 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 16 [2022-11-23 03:17:58,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:58,921 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2022-11-23 03:17:58,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:58,921 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2022-11-23 03:17:58,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 03:17:58,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:58,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:17:58,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 03:17:58,923 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting insertionSortErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:58,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:58,924 INFO L85 PathProgramCache]: Analyzing trace with hash -930294703, now seen corresponding path program 1 times [2022-11-23 03:17:58,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:58,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594129286] [2022-11-23 03:17:58,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:58,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:17:59,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:59,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594129286] [2022-11-23 03:17:59,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594129286] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:17:59,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490082086] [2022-11-23 03:17:59,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:59,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:17:59,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:17:59,187 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:17:59,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:17:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:59,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:17:59,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:17:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:17:59,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:17:59,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490082086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:59,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:17:59,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2022-11-23 03:17:59,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527589825] [2022-11-23 03:17:59,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:59,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:17:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:59,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:17:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:17:59,415 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:17:59,585 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2022-11-23 03:17:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:17:59,585 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-23 03:17:59,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:17:59,586 INFO L225 Difference]: With dead ends: 54 [2022-11-23 03:17:59,586 INFO L226 Difference]: Without dead ends: 54 [2022-11-23 03:17:59,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:17:59,588 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 34 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:17:59,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 131 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:17:59,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-23 03:17:59,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2022-11-23 03:17:59,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 46 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:17:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2022-11-23 03:17:59,605 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 17 [2022-11-23 03:17:59,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:17:59,606 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-11-23 03:17:59,606 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:17:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2022-11-23 03:17:59,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 03:17:59,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:17:59,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:17:59,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:17:59,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 03:17:59,815 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:17:59,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:17:59,816 INFO L85 PathProgramCache]: Analyzing trace with hash -85860309, now seen corresponding path program 1 times [2022-11-23 03:17:59,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:17:59,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418761088] [2022-11-23 03:17:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:17:59,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:17:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:59,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 03:17:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:17:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:17:59,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:17:59,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418761088] [2022-11-23 03:17:59,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418761088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:17:59,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:17:59,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:17:59,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118389148] [2022-11-23 03:17:59,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:17:59,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:17:59,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:17:59,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:17:59,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:17:59,939 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:18:00,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:00,062 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2022-11-23 03:18:00,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:18:00,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-23 03:18:00,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:00,064 INFO L225 Difference]: With dead ends: 69 [2022-11-23 03:18:00,064 INFO L226 Difference]: Without dead ends: 67 [2022-11-23 03:18:00,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:18:00,065 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 59 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:00,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 107 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:18:00,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-23 03:18:00,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 52. [2022-11-23 03:18:00,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 46 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:18:00,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2022-11-23 03:18:00,071 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 17 [2022-11-23 03:18:00,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:00,071 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2022-11-23 03:18:00,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:18:00,072 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2022-11-23 03:18:00,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 03:18:00,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:00,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:00,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 03:18:00,073 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:18:00,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:00,074 INFO L85 PathProgramCache]: Analyzing trace with hash -73595863, now seen corresponding path program 1 times [2022-11-23 03:18:00,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:00,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479331257] [2022-11-23 03:18:00,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:00,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:00,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:00,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:00,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479331257] [2022-11-23 03:18:00,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479331257] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:00,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619996929] [2022-11-23 03:18:00,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:00,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:00,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:00,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:00,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:18:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:00,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 03:18:00,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:00,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:00,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619996929] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:00,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:00,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2022-11-23 03:18:00,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836727997] [2022-11-23 03:18:00,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:00,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 03:18:00,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:00,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 03:18:00,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:18:00,723 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand has 18 states, 15 states have (on average 3.0) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:00,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:00,988 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2022-11-23 03:18:00,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:18:00,989 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.0) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-23 03:18:00,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:00,990 INFO L225 Difference]: With dead ends: 84 [2022-11-23 03:18:00,991 INFO L226 Difference]: Without dead ends: 84 [2022-11-23 03:18:00,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-11-23 03:18:00,992 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 64 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:00,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 351 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:18:00,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-23 03:18:01,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 74. [2022-11-23 03:18:01,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 65 states have internal predecessors, (69), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 03:18:01,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2022-11-23 03:18:01,004 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 22 [2022-11-23 03:18:01,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:01,004 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2022-11-23 03:18:01,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.0) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:01,005 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2022-11-23 03:18:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 03:18:01,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:01,006 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:01,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-23 03:18:01,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-23 03:18:01,213 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:18:01,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:01,213 INFO L85 PathProgramCache]: Analyzing trace with hash 823131526, now seen corresponding path program 2 times [2022-11-23 03:18:01,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:01,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127319803] [2022-11-23 03:18:01,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:01,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:01,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:01,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127319803] [2022-11-23 03:18:01,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127319803] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:01,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656259427] [2022-11-23 03:18:01,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:18:01,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:01,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:01,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:01,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:18:01,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:18:01,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:18:01,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-23 03:18:01,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:02,156 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:02,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:02,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2022-11-23 03:18:02,589 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:02,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656259427] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:02,590 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:02,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-11-23 03:18:02,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204024650] [2022-11-23 03:18:02,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:02,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-23 03:18:02,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:02,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-23 03:18:02,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-23 03:18:02,592 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand has 26 states, 22 states have (on average 3.090909090909091) internal successors, (68), 20 states have internal predecessors, (68), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:03,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:03,539 INFO L93 Difference]: Finished difference Result 106 states and 113 transitions. [2022-11-23 03:18:03,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:18:03,540 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 22 states have (on average 3.090909090909091) internal successors, (68), 20 states have internal predecessors, (68), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-23 03:18:03,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:03,541 INFO L225 Difference]: With dead ends: 106 [2022-11-23 03:18:03,542 INFO L226 Difference]: Without dead ends: 106 [2022-11-23 03:18:03,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:18:03,543 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 164 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:03,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 380 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:18:03,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-23 03:18:03,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 94. [2022-11-23 03:18:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 77 states have (on average 1.2207792207792207) internal successors, (94), 83 states have internal predecessors, (94), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-23 03:18:03,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2022-11-23 03:18:03,550 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 26 [2022-11-23 03:18:03,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:03,551 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2022-11-23 03:18:03,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 22 states have (on average 3.090909090909091) internal successors, (68), 20 states have internal predecessors, (68), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:03,552 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2022-11-23 03:18:03,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 03:18:03,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:03,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:03,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:03,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 03:18:03,761 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting insertionSortErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:18:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:03,763 INFO L85 PathProgramCache]: Analyzing trace with hash 101774635, now seen corresponding path program 1 times [2022-11-23 03:18:03,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:03,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083420344] [2022-11-23 03:18:03,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:03,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 03:18:04,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:04,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083420344] [2022-11-23 03:18:04,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083420344] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:04,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220852226] [2022-11-23 03:18:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:04,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:04,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:04,028 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:04,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:18:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:04,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 03:18:04,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 03:18:04,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:18:04,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220852226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:04,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:18:04,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-11-23 03:18:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568753484] [2022-11-23 03:18:04,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:04,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:18:04,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:04,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:18:04,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:18:04,359 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:04,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:04,708 INFO L93 Difference]: Finished difference Result 107 states and 124 transitions. [2022-11-23 03:18:04,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:18:04,708 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-23 03:18:04,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:04,710 INFO L225 Difference]: With dead ends: 107 [2022-11-23 03:18:04,710 INFO L226 Difference]: Without dead ends: 107 [2022-11-23 03:18:04,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:18:04,711 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 75 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:04,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 79 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:18:04,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-23 03:18:04,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 93. [2022-11-23 03:18:04,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.139240506329114) internal successors, (90), 82 states have internal predecessors, (90), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-23 03:18:04,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2022-11-23 03:18:04,721 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 30 [2022-11-23 03:18:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:04,726 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2022-11-23 03:18:04,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2022-11-23 03:18:04,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 03:18:04,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:04,733 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:04,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:04,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 03:18:04,941 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:18:04,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:04,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1896173366, now seen corresponding path program 1 times [2022-11-23 03:18:04,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:04,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966273114] [2022-11-23 03:18:04,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:04,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:05,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 03:18:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:05,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:18:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 03:18:05,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:05,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966273114] [2022-11-23 03:18:05,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966273114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:18:05,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:18:05,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:18:05,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280004216] [2022-11-23 03:18:05,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:18:05,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:18:05,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:05,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:18:05,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:18:05,085 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:05,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:05,137 INFO L93 Difference]: Finished difference Result 117 states and 132 transitions. [2022-11-23 03:18:05,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:18:05,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2022-11-23 03:18:05,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:05,139 INFO L225 Difference]: With dead ends: 117 [2022-11-23 03:18:05,139 INFO L226 Difference]: Without dead ends: 82 [2022-11-23 03:18:05,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:18:05,142 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 16 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:05,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 91 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:18:05,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-23 03:18:05,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 46. [2022-11-23 03:18:05,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:05,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2022-11-23 03:18:05,147 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 30 [2022-11-23 03:18:05,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:05,147 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2022-11-23 03:18:05,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:18:05,148 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2022-11-23 03:18:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 03:18:05,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:05,155 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:05,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 03:18:05,155 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting insertionSortErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:18:05,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:05,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1139947587, now seen corresponding path program 1 times [2022-11-23 03:18:05,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:05,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702803517] [2022-11-23 03:18:05,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:05,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:05,352 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 03:18:05,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:05,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702803517] [2022-11-23 03:18:05,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702803517] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:05,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270076809] [2022-11-23 03:18:05,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:05,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:05,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:05,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:05,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 03:18:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:05,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 03:18:05,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:05,506 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 03:18:05,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 03:18:05,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270076809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:05,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:05,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-11-23 03:18:05,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115282703] [2022-11-23 03:18:05,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:05,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:18:05,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:05,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:18:05,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:18:05,591 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:05,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:05,793 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2022-11-23 03:18:05,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:18:05,794 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 03:18:05,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:05,795 INFO L225 Difference]: With dead ends: 58 [2022-11-23 03:18:05,795 INFO L226 Difference]: Without dead ends: 58 [2022-11-23 03:18:05,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2022-11-23 03:18:05,796 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 107 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:05,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 123 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:18:05,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-23 03:18:05,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 48. [2022-11-23 03:18:05,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 44 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:05,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2022-11-23 03:18:05,799 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 31 [2022-11-23 03:18:05,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:05,799 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2022-11-23 03:18:05,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:05,799 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2022-11-23 03:18:05,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 03:18:05,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:05,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:05,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:06,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 03:18:06,012 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:18:06,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:06,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1146097344, now seen corresponding path program 1 times [2022-11-23 03:18:06,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:06,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193163703] [2022-11-23 03:18:06,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:06,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:06,347 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:06,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:06,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193163703] [2022-11-23 03:18:06,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193163703] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:06,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390461072] [2022-11-23 03:18:06,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:06,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:06,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:06,350 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:06,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 03:18:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:06,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-23 03:18:06,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:06,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:06,986 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:06,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390461072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:06,987 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:06,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 25 [2022-11-23 03:18:06,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181532782] [2022-11-23 03:18:06,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:06,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 03:18:06,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:06,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 03:18:06,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2022-11-23 03:18:06,992 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 25 states, 20 states have (on average 3.55) internal successors, (71), 18 states have internal predecessors, (71), 5 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:07,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:07,253 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2022-11-23 03:18:07,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:18:07,254 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 3.55) internal successors, (71), 18 states have internal predecessors, (71), 5 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-23 03:18:07,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:07,255 INFO L225 Difference]: With dead ends: 89 [2022-11-23 03:18:07,256 INFO L226 Difference]: Without dead ends: 84 [2022-11-23 03:18:07,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 55 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=779, Unknown=0, NotChecked=0, Total=930 [2022-11-23 03:18:07,257 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 71 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:07,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 313 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:18:07,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-23 03:18:07,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2022-11-23 03:18:07,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 73 states have (on average 1.095890410958904) internal successors, (80), 74 states have internal predecessors, (80), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:07,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2022-11-23 03:18:07,265 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 38 [2022-11-23 03:18:07,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:07,266 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2022-11-23 03:18:07,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 3.55) internal successors, (71), 18 states have internal predecessors, (71), 5 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:07,266 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2022-11-23 03:18:07,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 03:18:07,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:07,269 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:07,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:07,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 03:18:07,477 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting insertionSortErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:18:07,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:07,477 INFO L85 PathProgramCache]: Analyzing trace with hash 131968688, now seen corresponding path program 1 times [2022-11-23 03:18:07,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:07,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239753170] [2022-11-23 03:18:07,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:07,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:08,083 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 03:18:08,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:08,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239753170] [2022-11-23 03:18:08,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239753170] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:08,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934878574] [2022-11-23 03:18:08,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:08,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:08,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:08,087 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:08,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 03:18:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:08,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 03:18:08,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 03:18:08,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:08,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-23 03:18:08,986 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 03:18:08,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934878574] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:08,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:08,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 24 [2022-11-23 03:18:08,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553349711] [2022-11-23 03:18:08,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:08,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 03:18:08,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:08,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 03:18:08,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2022-11-23 03:18:08,989 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 25 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 23 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:10,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:10,202 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2022-11-23 03:18:10,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 03:18:10,202 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 23 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-11-23 03:18:10,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:10,203 INFO L225 Difference]: With dead ends: 98 [2022-11-23 03:18:10,203 INFO L226 Difference]: Without dead ends: 63 [2022-11-23 03:18:10,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 63 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=383, Invalid=1257, Unknown=0, NotChecked=0, Total=1640 [2022-11-23 03:18:10,204 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 137 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:10,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 93 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:18:10,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-23 03:18:10,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 50. [2022-11-23 03:18:10,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 46 states have (on average 1.0869565217391304) internal successors, (50), 46 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:10,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-11-23 03:18:10,207 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 40 [2022-11-23 03:18:10,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:10,207 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-11-23 03:18:10,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 23 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:10,208 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-11-23 03:18:10,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-23 03:18:10,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:10,208 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:10,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:10,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-23 03:18:10,416 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:18:10,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:10,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1405522077, now seen corresponding path program 2 times [2022-11-23 03:18:10,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:10,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507730030] [2022-11-23 03:18:10,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:10,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:11,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:11,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507730030] [2022-11-23 03:18:11,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507730030] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:11,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826814450] [2022-11-23 03:18:11,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:18:11,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:11,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:11,065 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:11,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 03:18:11,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:18:11,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:18:11,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-23 03:18:11,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:11,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:12,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2022-11-23 03:18:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:12,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826814450] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:12,619 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:12,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2022-11-23 03:18:12,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598509148] [2022-11-23 03:18:12,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:12,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-23 03:18:12,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:12,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-23 03:18:12,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1273, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 03:18:12,630 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 38 states, 31 states have (on average 3.6451612903225805) internal successors, (113), 29 states have internal predecessors, (113), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:13,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:13,668 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2022-11-23 03:18:13,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:18:13,669 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 31 states have (on average 3.6451612903225805) internal successors, (113), 29 states have internal predecessors, (113), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-11-23 03:18:13,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:13,670 INFO L225 Difference]: With dead ends: 86 [2022-11-23 03:18:13,670 INFO L226 Difference]: Without dead ends: 86 [2022-11-23 03:18:13,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=217, Invalid=1853, Unknown=0, NotChecked=0, Total=2070 [2022-11-23 03:18:13,672 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 202 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:13,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 425 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:18:13,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-23 03:18:13,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 69. [2022-11-23 03:18:13,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 64 states have (on average 1.09375) internal successors, (70), 64 states have internal predecessors, (70), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:13,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2022-11-23 03:18:13,675 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 42 [2022-11-23 03:18:13,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:13,675 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2022-11-23 03:18:13,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 31 states have (on average 3.6451612903225805) internal successors, (113), 29 states have internal predecessors, (113), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2022-11-23 03:18:13,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-23 03:18:13,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:13,677 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:13,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:13,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:13,878 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:18:13,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:13,878 INFO L85 PathProgramCache]: Analyzing trace with hash 669489623, now seen corresponding path program 3 times [2022-11-23 03:18:13,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:13,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264497120] [2022-11-23 03:18:13,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:13,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 21 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:14,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:14,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264497120] [2022-11-23 03:18:14,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264497120] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:14,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960283719] [2022-11-23 03:18:14,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:18:14,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:14,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:14,486 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:14,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 03:18:14,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-23 03:18:14,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:18:14,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 03:18:14,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 36 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 03:18:15,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 03:18:15,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960283719] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:15,561 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:15,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 32 [2022-11-23 03:18:15,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199333417] [2022-11-23 03:18:15,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:15,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-23 03:18:15,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:15,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-23 03:18:15,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=863, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:18:15,563 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 32 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 25 states have internal predecessors, (88), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:16,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:16,407 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2022-11-23 03:18:16,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 03:18:16,407 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 25 states have internal predecessors, (88), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-11-23 03:18:16,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:16,408 INFO L225 Difference]: With dead ends: 127 [2022-11-23 03:18:16,408 INFO L226 Difference]: Without dead ends: 76 [2022-11-23 03:18:16,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 78 SyntacticMatches, 16 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=335, Invalid=1827, Unknown=0, NotChecked=0, Total=2162 [2022-11-23 03:18:16,410 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 143 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:16,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 347 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 03:18:16,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-23 03:18:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2022-11-23 03:18:16,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 68 states have (on average 1.088235294117647) internal successors, (74), 68 states have internal predecessors, (74), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2022-11-23 03:18:16,413 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 54 [2022-11-23 03:18:16,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:16,414 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2022-11-23 03:18:16,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 25 states have internal predecessors, (88), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:16,415 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2022-11-23 03:18:16,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 03:18:16,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:16,416 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:16,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:16,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:16,624 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-23 03:18:16,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:16,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1567236300, now seen corresponding path program 4 times [2022-11-23 03:18:16,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:16,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992837908] [2022-11-23 03:18:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:16,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:17,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:17,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992837908] [2022-11-23 03:18:17,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992837908] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:17,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61816342] [2022-11-23 03:18:17,651 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:18:17,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:17,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:17,653 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:17,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 03:18:17,781 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:18:17,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:18:17,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 03:18:17,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 03:18:18,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:20,461 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 03:18:20,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61816342] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:20,461 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:20,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2022-11-23 03:18:20,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394298777] [2022-11-23 03:18:20,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:20,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-23 03:18:20,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:20,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-23 03:18:20,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=2253, Unknown=0, NotChecked=0, Total=2450 [2022-11-23 03:18:20,464 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand has 50 states, 38 states have (on average 3.5526315789473686) internal successors, (135), 38 states have internal predecessors, (135), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:22,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:22,826 INFO L93 Difference]: Finished difference Result 108 states and 117 transitions. [2022-11-23 03:18:22,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-23 03:18:22,827 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 38 states have (on average 3.5526315789473686) internal successors, (135), 38 states have internal predecessors, (135), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-11-23 03:18:22,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:22,828 INFO L225 Difference]: With dead ends: 108 [2022-11-23 03:18:22,828 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 03:18:22,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=596, Invalid=4954, Unknown=0, NotChecked=0, Total=5550 [2022-11-23 03:18:22,831 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 560 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:22,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 729 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 03:18:22,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 03:18:22,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 03:18:22,832 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) [2022-11-23 03:18:22,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 03:18:22,833 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2022-11-23 03:18:22,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:22,833 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:18:22,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 38 states have (on average 3.5526315789473686) internal successors, (135), 38 states have internal predecessors, (135), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:22,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 03:18:22,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 03:18:22,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 16 remaining) [2022-11-23 03:18:22,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 16 remaining) [2022-11-23 03:18:22,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-23 03:18:22,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-23 03:18:22,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-23 03:18:22,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-23 03:18:22,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-23 03:18:22,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-23 03:18:22,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-23 03:18:22,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location insertionSortErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-23 03:18:22,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 16 remaining) [2022-11-23 03:18:22,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 16 remaining) [2022-11-23 03:18:22,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (3 of 16 remaining) [2022-11-23 03:18:22,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (2 of 16 remaining) [2022-11-23 03:18:22,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (1 of 16 remaining) [2022-11-23 03:18:22,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-23 03:18:22,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:23,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:23,057 INFO L444 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:23,060 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:18:23,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:18:23 BoogieIcfgContainer [2022-11-23 03:18:23,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:18:23,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:18:23,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:18:23,065 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:18:23,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:53" (3/4) ... [2022-11-23 03:18:23,074 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:18:23,082 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure insertionSort [2022-11-23 03:18:23,090 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-23 03:18:23,090 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-23 03:18:23,091 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 03:18:23,091 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:18:23,128 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:18:23,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:18:23,129 INFO L158 Benchmark]: Toolchain (without parser) took 30957.87ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 75.1MB in the beginning and 156.6MB in the end (delta: -81.5MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2022-11-23 03:18:23,129 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:18:23,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.68ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 65.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 03:18:23,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.20ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 64.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:18:23,130 INFO L158 Benchmark]: Boogie Preprocessor took 58.25ms. Allocated memory is still 117.4MB. Free memory was 64.0MB in the beginning and 62.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:18:23,131 INFO L158 Benchmark]: RCFGBuilder took 594.76ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 49.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 03:18:23,131 INFO L158 Benchmark]: TraceAbstraction took 29788.03ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 48.6MB in the beginning and 159.5MB in the end (delta: -110.9MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-11-23 03:18:23,132 INFO L158 Benchmark]: Witness Printer took 63.25ms. Allocated memory is still 251.7MB. Free memory was 159.5MB in the beginning and 156.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:18:23,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.68ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 65.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.20ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 64.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.25ms. Allocated memory is still 117.4MB. Free memory was 64.0MB in the beginning and 62.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.76ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 49.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 29788.03ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 48.6MB in the beginning and 159.5MB in the end (delta: -110.9MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Witness Printer took 63.25ms. Allocated memory is still 251.7MB. Free memory was 159.5MB in the beginning and 156.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: -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: -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: -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: 39]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 39]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 39]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 23]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 29.7s, OverallIterations: 21, TraceHistogramMax: 4, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1898 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1886 mSDsluCounter, 4115 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3443 mSDsCounter, 201 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4947 IncrementalHoareTripleChecker+Invalid, 5148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 201 mSolverCounterUnsat, 672 mSDtfsCounter, 4947 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 972 GetRequests, 535 SyntacticMatches, 43 SemanticMatches, 394 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3058 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=13, InterpolantAutomatonStates: 215, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 182 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 15.4s InterpolantComputationTime, 870 NumberOfCodeBlocks, 864 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1159 ConstructedInterpolants, 0 QuantifiedInterpolants, 9866 SizeOfPredicates, 94 NumberOfNonLiveVariables, 1645 ConjunctsInSsa, 252 ConjunctsInUnsatCore, 43 InterpolantComputations, 12 PerfectInterpolantSequences, 378/719 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 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 03:18:23,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13c073c-903b-44bb-969b-4519c886f574/bin/uautomizer-QkZJyEgLgS/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