./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe035_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe035_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- 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-b5237d8 [2022-11-21 16:20:15,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:20:15,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:20:15,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:20:15,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:20:15,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:20:15,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:20:15,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:20:15,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:20:15,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:20:15,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:20:15,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:20:15,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:20:15,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:20:15,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:20:15,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:20:15,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:20:15,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:20:15,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:20:15,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:20:15,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:20:15,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:20:15,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:20:15,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:20:15,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:20:15,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:20:15,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:20:15,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:20:15,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:20:15,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:20:15,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:20:15,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:20:15,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:20:15,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:20:15,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:20:15,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:20:15,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:20:15,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:20:15,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:20:15,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:20:15,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:20:15,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 16:20:15,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:20:15,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:20:15,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:20:15,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:20:15,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:20:15,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:20:15,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:20:15,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:20:15,732 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:20:15,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:20:15,733 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:20:15,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:20:15,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:20:15,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:20:15,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:20:15,734 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:20:15,735 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:20:15,735 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:20:15,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:20:15,735 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:20:15,736 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:20:15,736 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:20:15,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:20:15,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:20:15,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:20:15,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:20:15,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:20:15,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:20:15,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:20:15,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:20:15,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2022-11-21 16:20:16,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:20:16,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:20:16,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:20:16,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:20:16,045 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:20:16,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe035_power.i [2022-11-21 16:20:19,153 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:20:19,422 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:20:19,427 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/sv-benchmarks/c/pthread-wmm/safe035_power.i [2022-11-21 16:20:19,449 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/data/9a60f1c72/c8ce9072881c4a1698f9753a460e88de/FLAGc2026ee7e [2022-11-21 16:20:19,468 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/data/9a60f1c72/c8ce9072881c4a1698f9753a460e88de [2022-11-21 16:20:19,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:20:19,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:20:19,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:20:19,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:20:19,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:20:19,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:20:19" (1/1) ... [2022-11-21 16:20:19,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c8fc5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:19, skipping insertion in model container [2022-11-21 16:20:19,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:20:19" (1/1) ... [2022-11-21 16:20:19,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:20:19,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:20:19,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/sv-benchmarks/c/pthread-wmm/safe035_power.i[947,960] [2022-11-21 16:20:19,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:20:19,997 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:20:20,010 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/sv-benchmarks/c/pthread-wmm/safe035_power.i[947,960] [2022-11-21 16:20:20,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:20:20,171 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:20:20,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20 WrapperNode [2022-11-21 16:20:20,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:20:20,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:20:20,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:20:20,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:20:20,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,284 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168 [2022-11-21 16:20:20,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:20:20,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:20:20,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:20:20,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:20:20,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,350 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:20:20,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:20:20,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:20:20,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:20:20,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (1/1) ... [2022-11-21 16:20:20,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:20:20,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:20:20,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:20:20,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:20:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:20:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:20:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:20:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:20:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:20:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:20:20,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:20:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:20:20,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:20:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:20:20,469 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:20:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:20:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:20:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:20:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:20:20,471 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:20:20,644 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:20:20,649 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:20:21,182 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:20:21,533 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:20:21,533 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:20:21,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:21 BoogieIcfgContainer [2022-11-21 16:20:21,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:20:21,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:20:21,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:20:21,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:20:21,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:20:19" (1/3) ... [2022-11-21 16:20:21,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121a9021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:20:21, skipping insertion in model container [2022-11-21 16:20:21,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:20" (2/3) ... [2022-11-21 16:20:21,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121a9021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:20:21, skipping insertion in model container [2022-11-21 16:20:21,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:21" (3/3) ... [2022-11-21 16:20:21,558 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2022-11-21 16:20:21,580 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:20:21,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-21 16:20:21,581 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:20:21,677 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:20:21,724 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 16:20:21,748 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 129 transitions, 273 flow [2022-11-21 16:20:21,753 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 129 transitions, 273 flow [2022-11-21 16:20:21,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 129 transitions, 273 flow [2022-11-21 16:20:21,828 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-11-21 16:20:21,828 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:20:21,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2022-11-21 16:20:21,837 INFO L119 LiptonReduction]: Number of co-enabled transitions 2648 [2022-11-21 16:20:28,712 INFO L134 LiptonReduction]: Checked pairs total: 8024 [2022-11-21 16:20:28,713 INFO L136 LiptonReduction]: Total number of compositions: 125 [2022-11-21 16:20:28,723 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 38 transitions, 91 flow [2022-11-21 16:20:28,869 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1756 states, 1745 states have (on average 3.431518624641834) internal successors, (5988), 1755 states have internal predecessors, (5988), 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) [2022-11-21 16:20:28,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:20:28,901 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@36574255, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:20:28,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-21 16:20:28,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 1756 states, 1745 states have (on average 3.431518624641834) internal successors, (5988), 1755 states have internal predecessors, (5988), 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) [2022-11-21 16:20:28,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 16:20:28,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:28,915 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 16:20:28,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:28,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:28,925 INFO L85 PathProgramCache]: Analyzing trace with hash 639, now seen corresponding path program 1 times [2022-11-21 16:20:28,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:28,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423265894] [2022-11-21 16:20:28,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:28,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:29,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:29,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423265894] [2022-11-21 16:20:29,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423265894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:29,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:29,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 16:20:29,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579603829] [2022-11-21 16:20:29,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:29,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:20:29,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:29,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:20:29,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:20:29,088 INFO L87 Difference]: Start difference. First operand has 1756 states, 1745 states have (on average 3.431518624641834) internal successors, (5988), 1755 states have internal predecessors, (5988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:29,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:29,204 INFO L93 Difference]: Finished difference Result 1670 states and 5520 transitions. [2022-11-21 16:20:29,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:20:29,207 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-21 16:20:29,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:29,237 INFO L225 Difference]: With dead ends: 1670 [2022-11-21 16:20:29,237 INFO L226 Difference]: Without dead ends: 1670 [2022-11-21 16:20:29,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:20:29,241 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:29,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:20:29,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-11-21 16:20:29,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1670. [2022-11-21 16:20:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1665 states have (on average 3.315315315315315) internal successors, (5520), 1669 states have internal predecessors, (5520), 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) [2022-11-21 16:20:29,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 5520 transitions. [2022-11-21 16:20:29,386 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 5520 transitions. Word has length 1 [2022-11-21 16:20:29,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:29,388 INFO L495 AbstractCegarLoop]: Abstraction has 1670 states and 5520 transitions. [2022-11-21 16:20:29,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:29,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 5520 transitions. [2022-11-21 16:20:29,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 16:20:29,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:29,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:29,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:20:29,391 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:29,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:29,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1750330545, now seen corresponding path program 1 times [2022-11-21 16:20:29,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:29,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474280263] [2022-11-21 16:20:29,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:29,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:29,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:29,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:29,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474280263] [2022-11-21 16:20:29,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474280263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:29,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:29,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:20:29,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567182120] [2022-11-21 16:20:29,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:29,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:20:29,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:29,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:20:29,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:29,808 INFO L87 Difference]: Start difference. First operand 1670 states and 5520 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-21 16:20:29,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:29,960 INFO L93 Difference]: Finished difference Result 1418 states and 4632 transitions. [2022-11-21 16:20:29,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:20:29,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-21 16:20:29,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:29,971 INFO L225 Difference]: With dead ends: 1418 [2022-11-21 16:20:29,972 INFO L226 Difference]: Without dead ends: 1382 [2022-11-21 16:20:29,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:29,973 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:29,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:20:29,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-11-21 16:20:30,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1382. [2022-11-21 16:20:30,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1380 states have (on average 3.2869565217391306) internal successors, (4536), 1381 states have internal predecessors, (4536), 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) [2022-11-21 16:20:30,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 4536 transitions. [2022-11-21 16:20:30,029 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 4536 transitions. Word has length 7 [2022-11-21 16:20:30,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:30,030 INFO L495 AbstractCegarLoop]: Abstraction has 1382 states and 4536 transitions. [2022-11-21 16:20:30,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-21 16:20:30,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 4536 transitions. [2022-11-21 16:20:30,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:20:30,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:30,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:30,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:20:30,032 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:30,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:30,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1559630603, now seen corresponding path program 1 times [2022-11-21 16:20:30,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:30,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017940882] [2022-11-21 16:20:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:30,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:30,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:30,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017940882] [2022-11-21 16:20:30,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017940882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:30,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:30,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:20:30,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289355163] [2022-11-21 16:20:30,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:30,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:20:30,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:30,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:20:30,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:30,412 INFO L87 Difference]: Start difference. First operand 1382 states and 4536 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:30,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:30,527 INFO L93 Difference]: Finished difference Result 1274 states and 4140 transitions. [2022-11-21 16:20:30,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:20:30,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-21 16:20:30,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:30,538 INFO L225 Difference]: With dead ends: 1274 [2022-11-21 16:20:30,538 INFO L226 Difference]: Without dead ends: 1274 [2022-11-21 16:20:30,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:30,540 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:30,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:20:30,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2022-11-21 16:20:30,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1274. [2022-11-21 16:20:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1272 states have (on average 3.2547169811320753) internal successors, (4140), 1273 states have internal predecessors, (4140), 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) [2022-11-21 16:20:30,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4140 transitions. [2022-11-21 16:20:30,629 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4140 transitions. Word has length 9 [2022-11-21 16:20:30,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:30,630 INFO L495 AbstractCegarLoop]: Abstraction has 1274 states and 4140 transitions. [2022-11-21 16:20:30,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:30,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4140 transitions. [2022-11-21 16:20:30,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:20:30,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:30,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:30,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:20:30,635 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:30,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:30,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1103909482, now seen corresponding path program 1 times [2022-11-21 16:20:30,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:30,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522118635] [2022-11-21 16:20:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:31,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:31,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:31,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522118635] [2022-11-21 16:20:31,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522118635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:31,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:31,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:20:31,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166030220] [2022-11-21 16:20:31,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:31,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:20:31,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:31,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:20:31,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:20:31,302 INFO L87 Difference]: Start difference. First operand 1274 states and 4140 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-11-21 16:20:31,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:31,686 INFO L93 Difference]: Finished difference Result 1274 states and 3996 transitions. [2022-11-21 16:20:31,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:20:31,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2022-11-21 16:20:31,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:31,695 INFO L225 Difference]: With dead ends: 1274 [2022-11-21 16:20:31,695 INFO L226 Difference]: Without dead ends: 1058 [2022-11-21 16:20:31,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:20:31,699 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 42 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:31,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 16 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:20:31,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-11-21 16:20:31,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1058. [2022-11-21 16:20:31,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1056 states have (on average 3.1704545454545454) internal successors, (3348), 1057 states have internal predecessors, (3348), 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) [2022-11-21 16:20:31,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 3348 transitions. [2022-11-21 16:20:31,739 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 3348 transitions. Word has length 10 [2022-11-21 16:20:31,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:31,740 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 3348 transitions. [2022-11-21 16:20:31,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-11-21 16:20:31,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 3348 transitions. [2022-11-21 16:20:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:20:31,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:31,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:31,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:20:31,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:31,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:31,748 INFO L85 PathProgramCache]: Analyzing trace with hash -3302270, now seen corresponding path program 1 times [2022-11-21 16:20:31,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:31,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680722953] [2022-11-21 16:20:31,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:31,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:32,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:32,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:32,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680722953] [2022-11-21 16:20:32,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680722953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:32,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:32,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:20:32,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189236886] [2022-11-21 16:20:32,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:32,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:20:32,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:32,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:20:32,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:20:32,751 INFO L87 Difference]: Start difference. First operand 1058 states and 3348 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:33,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:33,151 INFO L93 Difference]: Finished difference Result 1646 states and 5284 transitions. [2022-11-21 16:20:33,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:20:33,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 16:20:33,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:33,169 INFO L225 Difference]: With dead ends: 1646 [2022-11-21 16:20:33,170 INFO L226 Difference]: Without dead ends: 1646 [2022-11-21 16:20:33,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:20:33,170 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 38 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:33,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 10 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:20:33,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-11-21 16:20:33,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1166. [2022-11-21 16:20:33,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1164 states have (on average 3.154639175257732) internal successors, (3672), 1165 states have internal predecessors, (3672), 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) [2022-11-21 16:20:33,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 3672 transitions. [2022-11-21 16:20:33,234 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 3672 transitions. Word has length 12 [2022-11-21 16:20:33,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:33,235 INFO L495 AbstractCegarLoop]: Abstraction has 1166 states and 3672 transitions. [2022-11-21 16:20:33,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:33,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 3672 transitions. [2022-11-21 16:20:33,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:20:33,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:33,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:33,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:20:33,237 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:33,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:33,238 INFO L85 PathProgramCache]: Analyzing trace with hash -89648120, now seen corresponding path program 2 times [2022-11-21 16:20:33,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:33,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588652144] [2022-11-21 16:20:33,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:33,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:34,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:34,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:34,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588652144] [2022-11-21 16:20:34,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588652144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:34,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:34,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:20:34,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902830970] [2022-11-21 16:20:34,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:34,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:20:34,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:34,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:20:34,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:20:34,154 INFO L87 Difference]: Start difference. First operand 1166 states and 3672 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:34,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:34,531 INFO L93 Difference]: Finished difference Result 1968 states and 6220 transitions. [2022-11-21 16:20:34,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:20:34,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 16:20:34,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:34,546 INFO L225 Difference]: With dead ends: 1968 [2022-11-21 16:20:34,546 INFO L226 Difference]: Without dead ends: 1968 [2022-11-21 16:20:34,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:20:34,547 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 27 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:34,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 14 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:20:34,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2022-11-21 16:20:34,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1556. [2022-11-21 16:20:34,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1554 states have (on average 3.213642213642214) internal successors, (4994), 1555 states have internal predecessors, (4994), 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) [2022-11-21 16:20:34,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 4994 transitions. [2022-11-21 16:20:34,626 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 4994 transitions. Word has length 12 [2022-11-21 16:20:34,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:34,627 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 4994 transitions. [2022-11-21 16:20:34,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:34,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 4994 transitions. [2022-11-21 16:20:34,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 16:20:34,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:34,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:34,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:20:34,631 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:34,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:34,631 INFO L85 PathProgramCache]: Analyzing trace with hash -102317576, now seen corresponding path program 1 times [2022-11-21 16:20:34,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:34,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045820358] [2022-11-21 16:20:34,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:34,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:35,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:35,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045820358] [2022-11-21 16:20:35,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045820358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:35,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:35,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:20:35,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2976547] [2022-11-21 16:20:35,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:35,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:20:35,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:35,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:20:35,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:20:35,339 INFO L87 Difference]: Start difference. First operand 1556 states and 4994 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:35,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:35,965 INFO L93 Difference]: Finished difference Result 2252 states and 7121 transitions. [2022-11-21 16:20:35,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:20:35,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-21 16:20:35,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:35,979 INFO L225 Difference]: With dead ends: 2252 [2022-11-21 16:20:35,979 INFO L226 Difference]: Without dead ends: 2252 [2022-11-21 16:20:35,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:20:35,980 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 116 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:35,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 14 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:20:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2022-11-21 16:20:36,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1570. [2022-11-21 16:20:36,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1568 states have (on average 3.214923469387755) internal successors, (5041), 1569 states have internal predecessors, (5041), 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) [2022-11-21 16:20:36,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 5041 transitions. [2022-11-21 16:20:36,041 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 5041 transitions. Word has length 13 [2022-11-21 16:20:36,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:36,042 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 5041 transitions. [2022-11-21 16:20:36,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:36,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 5041 transitions. [2022-11-21 16:20:36,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 16:20:36,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:36,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:36,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:20:36,044 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:36,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:36,045 INFO L85 PathProgramCache]: Analyzing trace with hash -102371516, now seen corresponding path program 2 times [2022-11-21 16:20:36,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:36,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73250517] [2022-11-21 16:20:36,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:36,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:36,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:36,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73250517] [2022-11-21 16:20:36,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73250517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:36,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:36,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:20:36,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272238499] [2022-11-21 16:20:36,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:36,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:20:36,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:36,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:20:36,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:20:36,324 INFO L87 Difference]: Start difference. First operand 1570 states and 5041 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:36,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:36,519 INFO L93 Difference]: Finished difference Result 1374 states and 3840 transitions. [2022-11-21 16:20:36,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:20:36,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-21 16:20:36,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:36,525 INFO L225 Difference]: With dead ends: 1374 [2022-11-21 16:20:36,525 INFO L226 Difference]: Without dead ends: 986 [2022-11-21 16:20:36,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:20:36,526 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 43 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:36,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 5 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:20:36,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2022-11-21 16:20:36,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 986. [2022-11-21 16:20:36,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 984 states have (on average 2.7042682926829267) internal successors, (2661), 985 states have internal predecessors, (2661), 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) [2022-11-21 16:20:36,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 2661 transitions. [2022-11-21 16:20:36,557 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 2661 transitions. Word has length 13 [2022-11-21 16:20:36,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:36,557 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 2661 transitions. [2022-11-21 16:20:36,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 2661 transitions. [2022-11-21 16:20:36,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:20:36,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:36,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:36,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:20:36,559 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:36,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:36,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1521766963, now seen corresponding path program 1 times [2022-11-21 16:20:36,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:36,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184409061] [2022-11-21 16:20:36,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:36,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:36,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184409061] [2022-11-21 16:20:36,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184409061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:36,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:36,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:20:36,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494075905] [2022-11-21 16:20:36,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:36,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:20:36,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:36,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:20:36,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:20:36,839 INFO L87 Difference]: Start difference. First operand 986 states and 2661 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:37,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:37,074 INFO L93 Difference]: Finished difference Result 745 states and 1831 transitions. [2022-11-21 16:20:37,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:20:37,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-21 16:20:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:37,077 INFO L225 Difference]: With dead ends: 745 [2022-11-21 16:20:37,078 INFO L226 Difference]: Without dead ends: 575 [2022-11-21 16:20:37,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:20:37,078 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 64 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:37,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 7 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:20:37,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-11-21 16:20:37,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2022-11-21 16:20:37,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 573 states have (on average 2.4171029668411865) internal successors, (1385), 574 states have internal predecessors, (1385), 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) [2022-11-21 16:20:37,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1385 transitions. [2022-11-21 16:20:37,095 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1385 transitions. Word has length 15 [2022-11-21 16:20:37,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:37,096 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 1385 transitions. [2022-11-21 16:20:37,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:37,096 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1385 transitions. [2022-11-21 16:20:37,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 16:20:37,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:37,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:37,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:20:37,098 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:37,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:37,099 INFO L85 PathProgramCache]: Analyzing trace with hash 973560043, now seen corresponding path program 1 times [2022-11-21 16:20:37,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:37,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276144100] [2022-11-21 16:20:37,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:37,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:38,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:38,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:38,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276144100] [2022-11-21 16:20:38,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276144100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:38,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:38,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:20:38,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634186436] [2022-11-21 16:20:38,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:38,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:20:38,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:38,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:20:38,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:20:38,500 INFO L87 Difference]: Start difference. First operand 575 states and 1385 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-11-21 16:20:39,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:39,131 INFO L93 Difference]: Finished difference Result 1335 states and 3101 transitions. [2022-11-21 16:20:39,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:20:39,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 19 [2022-11-21 16:20:39,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:39,137 INFO L225 Difference]: With dead ends: 1335 [2022-11-21 16:20:39,137 INFO L226 Difference]: Without dead ends: 1335 [2022-11-21 16:20:39,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:20:39,138 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 54 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:39,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 20 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:20:39,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2022-11-21 16:20:39,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 588. [2022-11-21 16:20:39,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 586 states have (on average 2.431740614334471) internal successors, (1425), 587 states have internal predecessors, (1425), 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) [2022-11-21 16:20:39,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 1425 transitions. [2022-11-21 16:20:39,164 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 1425 transitions. Word has length 19 [2022-11-21 16:20:39,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:39,165 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 1425 transitions. [2022-11-21 16:20:39,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-11-21 16:20:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 1425 transitions. [2022-11-21 16:20:39,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 16:20:39,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:39,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:39,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:20:39,168 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:39,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:39,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1343206935, now seen corresponding path program 2 times [2022-11-21 16:20:39,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:39,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358358091] [2022-11-21 16:20:39,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:39,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:41,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:41,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:41,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358358091] [2022-11-21 16:20:41,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358358091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:41,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:41,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:20:41,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988069001] [2022-11-21 16:20:41,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:41,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:20:41,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:41,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:20:41,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:20:41,471 INFO L87 Difference]: Start difference. First operand 588 states and 1425 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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) [2022-11-21 16:20:41,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:41,907 INFO L93 Difference]: Finished difference Result 884 states and 2091 transitions. [2022-11-21 16:20:41,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:20:41,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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 19 [2022-11-21 16:20:41,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:41,911 INFO L225 Difference]: With dead ends: 884 [2022-11-21 16:20:41,911 INFO L226 Difference]: Without dead ends: 884 [2022-11-21 16:20:41,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:20:41,912 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 36 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:41,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 15 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:20:41,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-11-21 16:20:41,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 572. [2022-11-21 16:20:41,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 570 states have (on average 2.42280701754386) internal successors, (1381), 571 states have internal predecessors, (1381), 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) [2022-11-21 16:20:41,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1381 transitions. [2022-11-21 16:20:41,930 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1381 transitions. Word has length 19 [2022-11-21 16:20:41,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:41,930 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 1381 transitions. [2022-11-21 16:20:41,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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) [2022-11-21 16:20:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1381 transitions. [2022-11-21 16:20:41,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 16:20:41,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:41,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:41,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:20:41,933 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:41,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:41,933 INFO L85 PathProgramCache]: Analyzing trace with hash 588217018, now seen corresponding path program 1 times [2022-11-21 16:20:41,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:41,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82428528] [2022-11-21 16:20:41,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:41,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:44,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:44,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82428528] [2022-11-21 16:20:44,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82428528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:44,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:44,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:20:44,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206770164] [2022-11-21 16:20:44,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:44,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:20:44,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:44,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:20:44,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:20:44,549 INFO L87 Difference]: Start difference. First operand 572 states and 1381 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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) [2022-11-21 16:20:44,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:44,979 INFO L93 Difference]: Finished difference Result 608 states and 1468 transitions. [2022-11-21 16:20:44,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:20:44,983 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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 19 [2022-11-21 16:20:44,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:44,986 INFO L225 Difference]: With dead ends: 608 [2022-11-21 16:20:44,986 INFO L226 Difference]: Without dead ends: 608 [2022-11-21 16:20:44,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:20:44,987 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 26 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:44,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:20:44,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2022-11-21 16:20:44,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 573. [2022-11-21 16:20:45,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 571 states have (on average 2.4238178633975482) internal successors, (1384), 572 states have internal predecessors, (1384), 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) [2022-11-21 16:20:45,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 1384 transitions. [2022-11-21 16:20:45,002 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 1384 transitions. Word has length 19 [2022-11-21 16:20:45,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:45,003 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 1384 transitions. [2022-11-21 16:20:45,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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) [2022-11-21 16:20:45,003 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 1384 transitions. [2022-11-21 16:20:45,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 16:20:45,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:45,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:45,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:20:45,005 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:45,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:45,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1345871150, now seen corresponding path program 2 times [2022-11-21 16:20:45,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:45,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253864216] [2022-11-21 16:20:45,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:45,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:47,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:47,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253864216] [2022-11-21 16:20:47,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253864216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:47,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:47,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:20:47,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868893324] [2022-11-21 16:20:47,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:47,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:20:47,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:47,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:20:47,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:20:47,097 INFO L87 Difference]: Start difference. First operand 573 states and 1384 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-11-21 16:20:47,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:47,327 INFO L93 Difference]: Finished difference Result 596 states and 1440 transitions. [2022-11-21 16:20:47,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:20:47,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 19 [2022-11-21 16:20:47,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:47,330 INFO L225 Difference]: With dead ends: 596 [2022-11-21 16:20:47,330 INFO L226 Difference]: Without dead ends: 596 [2022-11-21 16:20:47,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:20:47,331 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 28 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:47,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 3 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:20:47,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-11-21 16:20:47,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 555. [2022-11-21 16:20:47,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 553 states have (on average 2.421338155515371) internal successors, (1339), 554 states have internal predecessors, (1339), 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) [2022-11-21 16:20:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1339 transitions. [2022-11-21 16:20:47,355 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1339 transitions. Word has length 19 [2022-11-21 16:20:47,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:47,355 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 1339 transitions. [2022-11-21 16:20:47,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-11-21 16:20:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1339 transitions. [2022-11-21 16:20:47,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 16:20:47,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:47,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:47,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:20:47,358 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:47,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1135102385, now seen corresponding path program 3 times [2022-11-21 16:20:47,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:47,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137205457] [2022-11-21 16:20:47,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:47,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:48,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:48,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:48,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137205457] [2022-11-21 16:20:48,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137205457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:48,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:48,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:20:48,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709769430] [2022-11-21 16:20:48,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:48,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:20:48,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:48,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:20:48,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:20:48,437 INFO L87 Difference]: Start difference. First operand 555 states and 1339 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-11-21 16:20:48,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:48,912 INFO L93 Difference]: Finished difference Result 1262 states and 2938 transitions. [2022-11-21 16:20:48,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:20:48,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 19 [2022-11-21 16:20:48,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:48,917 INFO L225 Difference]: With dead ends: 1262 [2022-11-21 16:20:48,917 INFO L226 Difference]: Without dead ends: 1262 [2022-11-21 16:20:48,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:20:48,918 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 85 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:48,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 14 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:20:48,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-11-21 16:20:48,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 578. [2022-11-21 16:20:48,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 576 states have (on average 2.4288194444444446) internal successors, (1399), 577 states have internal predecessors, (1399), 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) [2022-11-21 16:20:48,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 1399 transitions. [2022-11-21 16:20:48,939 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 1399 transitions. Word has length 19 [2022-11-21 16:20:48,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:48,940 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 1399 transitions. [2022-11-21 16:20:48,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-11-21 16:20:48,940 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 1399 transitions. [2022-11-21 16:20:48,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 16:20:48,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:48,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:48,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:20:48,942 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:48,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:48,943 INFO L85 PathProgramCache]: Analyzing trace with hash -704448821, now seen corresponding path program 4 times [2022-11-21 16:20:48,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:48,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38482383] [2022-11-21 16:20:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:48,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:49,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:49,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:49,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38482383] [2022-11-21 16:20:49,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38482383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:49,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:49,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:20:49,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890592143] [2022-11-21 16:20:49,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:49,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:20:49,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:49,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:20:49,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:20:49,247 INFO L87 Difference]: Start difference. First operand 578 states and 1399 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-11-21 16:20:49,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:49,448 INFO L93 Difference]: Finished difference Result 518 states and 1263 transitions. [2022-11-21 16:20:49,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:20:49,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2022-11-21 16:20:49,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:49,450 INFO L225 Difference]: With dead ends: 518 [2022-11-21 16:20:49,451 INFO L226 Difference]: Without dead ends: 488 [2022-11-21 16:20:49,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:20:49,451 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 99 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:49,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 6 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:20:49,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-21 16:20:49,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 478. [2022-11-21 16:20:49,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 476 states have (on average 2.4873949579831933) internal successors, (1184), 477 states have internal predecessors, (1184), 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) [2022-11-21 16:20:49,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 1184 transitions. [2022-11-21 16:20:49,464 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 1184 transitions. Word has length 19 [2022-11-21 16:20:49,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:49,464 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 1184 transitions. [2022-11-21 16:20:49,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-11-21 16:20:49,465 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 1184 transitions. [2022-11-21 16:20:49,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:20:49,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:49,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:49,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:20:49,467 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:49,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:49,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1843556976, now seen corresponding path program 1 times [2022-11-21 16:20:49,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:49,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117703212] [2022-11-21 16:20:49,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:49,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:49,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:49,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117703212] [2022-11-21 16:20:49,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117703212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:49,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:49,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:20:49,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064753501] [2022-11-21 16:20:49,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:49,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:20:49,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:49,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:20:49,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:20:49,783 INFO L87 Difference]: Start difference. First operand 478 states and 1184 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-21 16:20:49,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:49,936 INFO L93 Difference]: Finished difference Result 680 states and 1647 transitions. [2022-11-21 16:20:49,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:20:49,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2022-11-21 16:20:49,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:49,938 INFO L225 Difference]: With dead ends: 680 [2022-11-21 16:20:49,939 INFO L226 Difference]: Without dead ends: 680 [2022-11-21 16:20:49,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:20:49,939 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:49,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:20:49,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-11-21 16:20:49,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 433. [2022-11-21 16:20:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 431 states have (on average 2.4733178654292343) internal successors, (1066), 432 states have internal predecessors, (1066), 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) [2022-11-21 16:20:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 1066 transitions. [2022-11-21 16:20:49,954 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 1066 transitions. Word has length 24 [2022-11-21 16:20:49,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:49,954 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 1066 transitions. [2022-11-21 16:20:49,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-21 16:20:49,954 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 1066 transitions. [2022-11-21 16:20:49,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:20:49,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:49,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:49,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:20:49,957 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:49,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:49,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1245139406, now seen corresponding path program 2 times [2022-11-21 16:20:49,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:49,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125667215] [2022-11-21 16:20:49,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:49,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:51,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:51,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125667215] [2022-11-21 16:20:51,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125667215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:51,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:51,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:20:51,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44523436] [2022-11-21 16:20:51,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:51,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:20:51,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:20:51,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:20:51,061 INFO L87 Difference]: Start difference. First operand 433 states and 1066 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-11-21 16:20:51,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:51,327 INFO L93 Difference]: Finished difference Result 579 states and 1392 transitions. [2022-11-21 16:20:51,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:20:51,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2022-11-21 16:20:51,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:51,330 INFO L225 Difference]: With dead ends: 579 [2022-11-21 16:20:51,330 INFO L226 Difference]: Without dead ends: 579 [2022-11-21 16:20:51,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:20:51,331 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 20 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:51,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 9 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:20:51,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-11-21 16:20:51,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 429. [2022-11-21 16:20:51,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 427 states have (on average 2.468384074941452) internal successors, (1054), 428 states have internal predecessors, (1054), 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) [2022-11-21 16:20:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 1054 transitions. [2022-11-21 16:20:51,343 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 1054 transitions. Word has length 24 [2022-11-21 16:20:51,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:51,343 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 1054 transitions. [2022-11-21 16:20:51,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-11-21 16:20:51,344 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 1054 transitions. [2022-11-21 16:20:51,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:20:51,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:51,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:51,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:20:51,348 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:51,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:51,349 INFO L85 PathProgramCache]: Analyzing trace with hash -827642072, now seen corresponding path program 3 times [2022-11-21 16:20:51,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:51,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724870225] [2022-11-21 16:20:51,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:51,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:54,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:54,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:54,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724870225] [2022-11-21 16:20:54,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724870225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:54,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:54,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:20:54,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772014183] [2022-11-21 16:20:54,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:54,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:20:54,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:54,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:20:54,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:20:54,478 INFO L87 Difference]: Start difference. First operand 429 states and 1054 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2022-11-21 16:20:55,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:55,233 INFO L93 Difference]: Finished difference Result 959 states and 2257 transitions. [2022-11-21 16:20:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:20:55,238 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 24 [2022-11-21 16:20:55,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:55,240 INFO L225 Difference]: With dead ends: 959 [2022-11-21 16:20:55,241 INFO L226 Difference]: Without dead ends: 959 [2022-11-21 16:20:55,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:20:55,242 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 59 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:55,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 19 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:20:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-11-21 16:20:55,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 435. [2022-11-21 16:20:55,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 433 states have (on average 2.4757505773672057) internal successors, (1072), 434 states have internal predecessors, (1072), 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) [2022-11-21 16:20:55,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 1072 transitions. [2022-11-21 16:20:55,264 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 1072 transitions. Word has length 24 [2022-11-21 16:20:55,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:55,265 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 1072 transitions. [2022-11-21 16:20:55,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2022-11-21 16:20:55,266 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 1072 transitions. [2022-11-21 16:20:55,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:20:55,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:55,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:55,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:20:55,268 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:55,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:55,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1524197738, now seen corresponding path program 4 times [2022-11-21 16:20:55,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:55,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816178246] [2022-11-21 16:20:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:55,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:57,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:57,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:57,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816178246] [2022-11-21 16:20:57,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816178246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:57,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:57,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:20:57,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799896130] [2022-11-21 16:20:57,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:57,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:20:57,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:57,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:20:57,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:20:57,408 INFO L87 Difference]: Start difference. First operand 435 states and 1072 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2022-11-21 16:20:58,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:58,136 INFO L93 Difference]: Finished difference Result 705 states and 1710 transitions. [2022-11-21 16:20:58,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:20:58,137 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 24 [2022-11-21 16:20:58,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:58,140 INFO L225 Difference]: With dead ends: 705 [2022-11-21 16:20:58,140 INFO L226 Difference]: Without dead ends: 705 [2022-11-21 16:20:58,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:20:58,141 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 48 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:58,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 19 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:20:58,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2022-11-21 16:20:58,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 434. [2022-11-21 16:20:58,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 432 states have (on average 2.474537037037037) internal successors, (1069), 433 states have internal predecessors, (1069), 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) [2022-11-21 16:20:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1069 transitions. [2022-11-21 16:20:58,154 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1069 transitions. Word has length 24 [2022-11-21 16:20:58,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:58,155 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 1069 transitions. [2022-11-21 16:20:58,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2022-11-21 16:20:58,155 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1069 transitions. [2022-11-21 16:20:58,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:20:58,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:58,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:58,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:20:58,157 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:58,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:58,158 INFO L85 PathProgramCache]: Analyzing trace with hash 296430312, now seen corresponding path program 5 times [2022-11-21 16:20:58,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:58,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700316860] [2022-11-21 16:20:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:58,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:58,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:58,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:58,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700316860] [2022-11-21 16:20:58,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700316860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:58,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:58,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:20:58,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745124839] [2022-11-21 16:20:58,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:58,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:20:58,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:58,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:20:58,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:20:58,993 INFO L87 Difference]: Start difference. First operand 434 states and 1069 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2022-11-21 16:20:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:20:59,352 INFO L93 Difference]: Finished difference Result 618 states and 1492 transitions. [2022-11-21 16:20:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:20:59,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 24 [2022-11-21 16:20:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:20:59,354 INFO L225 Difference]: With dead ends: 618 [2022-11-21 16:20:59,354 INFO L226 Difference]: Without dead ends: 618 [2022-11-21 16:20:59,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:20:59,355 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 39 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:20:59,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 11 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:20:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-11-21 16:20:59,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 433. [2022-11-21 16:20:59,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 431 states have (on average 2.4733178654292343) internal successors, (1066), 432 states have internal predecessors, (1066), 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) [2022-11-21 16:20:59,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 1066 transitions. [2022-11-21 16:20:59,367 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 1066 transitions. Word has length 24 [2022-11-21 16:20:59,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:20:59,367 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 1066 transitions. [2022-11-21 16:20:59,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2022-11-21 16:20:59,368 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 1066 transitions. [2022-11-21 16:20:59,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:20:59,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:59,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:59,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:20:59,370 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:20:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:59,370 INFO L85 PathProgramCache]: Analyzing trace with hash 675882326, now seen corresponding path program 6 times [2022-11-21 16:20:59,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:59,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213773202] [2022-11-21 16:20:59,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:59,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:00,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:00,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:00,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213773202] [2022-11-21 16:21:00,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213773202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:00,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:00,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:21:00,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974964775] [2022-11-21 16:21:00,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:00,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:21:00,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:00,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:21:00,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:21:00,994 INFO L87 Difference]: Start difference. First operand 433 states and 1066 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2022-11-21 16:21:02,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:21:02,023 INFO L93 Difference]: Finished difference Result 887 states and 2165 transitions. [2022-11-21 16:21:02,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:21:02,024 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 24 [2022-11-21 16:21:02,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:21:02,026 INFO L225 Difference]: With dead ends: 887 [2022-11-21 16:21:02,027 INFO L226 Difference]: Without dead ends: 887 [2022-11-21 16:21:02,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:21:02,028 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 86 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:21:02,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 21 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:21:02,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-11-21 16:21:02,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 427. [2022-11-21 16:21:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 425 states have (on average 2.468235294117647) internal successors, (1049), 426 states have internal predecessors, (1049), 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) [2022-11-21 16:21:02,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1049 transitions. [2022-11-21 16:21:02,042 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1049 transitions. Word has length 24 [2022-11-21 16:21:02,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:21:02,042 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 1049 transitions. [2022-11-21 16:21:02,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2022-11-21 16:21:02,043 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1049 transitions. [2022-11-21 16:21:02,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:21:02,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:21:02,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:02,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 16:21:02,045 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:21:02,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:02,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1537306658, now seen corresponding path program 7 times [2022-11-21 16:21:02,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:02,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941028916] [2022-11-21 16:21:02,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:02,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:02,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:02,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:02,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941028916] [2022-11-21 16:21:02,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941028916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:02,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:02,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:21:02,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707704569] [2022-11-21 16:21:02,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:02,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:21:02,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:02,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:21:02,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:21:02,656 INFO L87 Difference]: Start difference. First operand 427 states and 1049 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2022-11-21 16:21:03,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:21:03,033 INFO L93 Difference]: Finished difference Result 645 states and 1567 transitions. [2022-11-21 16:21:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:21:03,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 24 [2022-11-21 16:21:03,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:21:03,036 INFO L225 Difference]: With dead ends: 645 [2022-11-21 16:21:03,036 INFO L226 Difference]: Without dead ends: 645 [2022-11-21 16:21:03,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:21:03,037 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 41 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:21:03,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 19 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:21:03,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2022-11-21 16:21:03,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 418. [2022-11-21 16:21:03,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 416 states have (on average 2.46875) internal successors, (1027), 417 states have internal predecessors, (1027), 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) [2022-11-21 16:21:03,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1027 transitions. [2022-11-21 16:21:03,048 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1027 transitions. Word has length 24 [2022-11-21 16:21:03,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:21:03,049 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 1027 transitions. [2022-11-21 16:21:03,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2022-11-21 16:21:03,049 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1027 transitions. [2022-11-21 16:21:03,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 16:21:03,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:21:03,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:03,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 16:21:03,051 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:21:03,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:03,051 INFO L85 PathProgramCache]: Analyzing trace with hash -329031696, now seen corresponding path program 8 times [2022-11-21 16:21:03,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:03,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078658632] [2022-11-21 16:21:03,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:03,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:04,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:04,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:04,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078658632] [2022-11-21 16:21:04,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078658632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:04,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:04,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:21:04,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865106367] [2022-11-21 16:21:04,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:04,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:21:04,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:04,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:21:04,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:21:04,511 INFO L87 Difference]: Start difference. First operand 418 states and 1027 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2022-11-21 16:21:04,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:21:04,915 INFO L93 Difference]: Finished difference Result 552 states and 1341 transitions. [2022-11-21 16:21:04,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:21:04,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 24 [2022-11-21 16:21:04,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:21:04,917 INFO L225 Difference]: With dead ends: 552 [2022-11-21 16:21:04,917 INFO L226 Difference]: Without dead ends: 552 [2022-11-21 16:21:04,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:21:04,918 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 47 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:21:04,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 14 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:21:04,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-11-21 16:21:04,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 306. [2022-11-21 16:21:04,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 2.4918032786885247) internal successors, (760), 305 states have internal predecessors, (760), 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) [2022-11-21 16:21:04,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 760 transitions. [2022-11-21 16:21:04,927 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 760 transitions. Word has length 24 [2022-11-21 16:21:04,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:21:04,928 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 760 transitions. [2022-11-21 16:21:04,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2022-11-21 16:21:04,928 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 760 transitions. [2022-11-21 16:21:04,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 16:21:04,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:21:04,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:04,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 16:21:04,929 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:21:04,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:04,930 INFO L85 PathProgramCache]: Analyzing trace with hash -800168285, now seen corresponding path program 1 times [2022-11-21 16:21:04,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:04,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963554762] [2022-11-21 16:21:04,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:04,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:05,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:05,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963554762] [2022-11-21 16:21:05,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963554762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:05,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:05,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:21:05,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295439805] [2022-11-21 16:21:05,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:05,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:21:05,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:05,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:21:05,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:21:05,745 INFO L87 Difference]: Start difference. First operand 306 states and 760 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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) [2022-11-21 16:21:06,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:21:06,114 INFO L93 Difference]: Finished difference Result 429 states and 1044 transitions. [2022-11-21 16:21:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:21:06,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-21 16:21:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:21:06,115 INFO L225 Difference]: With dead ends: 429 [2022-11-21 16:21:06,115 INFO L226 Difference]: Without dead ends: 306 [2022-11-21 16:21:06,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:21:06,116 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 30 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:21:06,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 6 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:21:06,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-11-21 16:21:06,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2022-11-21 16:21:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 2.4754098360655736) internal successors, (755), 305 states have internal predecessors, (755), 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) [2022-11-21 16:21:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 755 transitions. [2022-11-21 16:21:06,124 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 755 transitions. Word has length 25 [2022-11-21 16:21:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:21:06,124 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 755 transitions. [2022-11-21 16:21:06,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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) [2022-11-21 16:21:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 755 transitions. [2022-11-21 16:21:06,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 16:21:06,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:21:06,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:06,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-21 16:21:06,126 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:21:06,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:06,126 INFO L85 PathProgramCache]: Analyzing trace with hash -34764941, now seen corresponding path program 2 times [2022-11-21 16:21:06,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:06,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482991332] [2022-11-21 16:21:06,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:06,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:06,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:06,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:06,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482991332] [2022-11-21 16:21:06,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482991332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:06,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:06,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:21:06,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883451923] [2022-11-21 16:21:06,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:06,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:21:06,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:06,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:21:06,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:21:06,778 INFO L87 Difference]: Start difference. First operand 306 states and 755 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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) [2022-11-21 16:21:07,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:21:07,220 INFO L93 Difference]: Finished difference Result 626 states and 1528 transitions. [2022-11-21 16:21:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:21:07,220 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-21 16:21:07,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:21:07,221 INFO L225 Difference]: With dead ends: 626 [2022-11-21 16:21:07,221 INFO L226 Difference]: Without dead ends: 276 [2022-11-21 16:21:07,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:21:07,222 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 42 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:21:07,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 6 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:21:07,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-11-21 16:21:07,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2022-11-21 16:21:07,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 275 states have (on average 2.4545454545454546) internal successors, (675), 275 states have internal predecessors, (675), 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) [2022-11-21 16:21:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 675 transitions. [2022-11-21 16:21:07,229 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 675 transitions. Word has length 25 [2022-11-21 16:21:07,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:21:07,229 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 675 transitions. [2022-11-21 16:21:07,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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) [2022-11-21 16:21:07,229 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 675 transitions. [2022-11-21 16:21:07,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 16:21:07,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:21:07,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:07,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-21 16:21:07,231 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:21:07,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:07,231 INFO L85 PathProgramCache]: Analyzing trace with hash 548540931, now seen corresponding path program 3 times [2022-11-21 16:21:07,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:07,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052980269] [2022-11-21 16:21:07,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:07,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:08,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:08,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:08,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052980269] [2022-11-21 16:21:08,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052980269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:08,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:08,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:21:08,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940340422] [2022-11-21 16:21:08,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:08,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:21:08,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:08,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:21:08,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:21:08,113 INFO L87 Difference]: Start difference. First operand 276 states and 675 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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) [2022-11-21 16:21:08,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:21:08,378 INFO L93 Difference]: Finished difference Result 307 states and 758 transitions. [2022-11-21 16:21:08,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:21:08,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-21 16:21:08,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:21:08,379 INFO L225 Difference]: With dead ends: 307 [2022-11-21 16:21:08,379 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:21:08,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:21:08,380 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 36 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:21:08,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 19 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:21:08,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:21:08,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:21:08,381 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) [2022-11-21 16:21:08,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:21:08,381 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-11-21 16:21:08,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:21:08,381 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:21:08,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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) [2022-11-21 16:21:08,382 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:21:08,382 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:21:08,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-21 16:21:08,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2022-11-21 16:21:08,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-21 16:21:08,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-21 16:21:08,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-21 16:21:08,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-21 16:21:08,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-21 16:21:08,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 13 remaining) [2022-11-21 16:21:08,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-21 16:21:08,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-21 16:21:08,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-21 16:21:08,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-21 16:21:08,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-21 16:21:08,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-21 16:21:08,390 INFO L444 BasicCegarLoop]: Path program histogram: [8, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 16:21:08,395 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:21:08,395 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:21:08,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:21:08 BasicIcfg [2022-11-21 16:21:08,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:21:08,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:21:08,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:21:08,399 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:21:08,399 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:21" (3/4) ... [2022-11-21 16:21:08,402 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:21:08,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:21:08,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:21:08,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 16:21:08,412 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-21 16:21:08,413 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-21 16:21:08,413 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:21:08,413 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:21:08,449 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:21:08,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:21:08,450 INFO L158 Benchmark]: Toolchain (without parser) took 48977.87ms. Allocated memory was 163.6MB in the beginning and 717.2MB in the end (delta: 553.6MB). Free memory was 127.3MB in the beginning and 406.2MB in the end (delta: -278.8MB). Peak memory consumption was 273.5MB. Max. memory is 16.1GB. [2022-11-21 16:21:08,450 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 119.5MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:21:08,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.09ms. Allocated memory is still 163.6MB. Free memory was 127.3MB in the beginning and 117.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:21:08,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.20ms. Allocated memory is still 163.6MB. Free memory was 117.1MB in the beginning and 113.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:21:08,451 INFO L158 Benchmark]: Boogie Preprocessor took 83.33ms. Allocated memory is still 163.6MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:21:08,451 INFO L158 Benchmark]: RCFGBuilder took 1163.97ms. Allocated memory is still 163.6MB. Free memory was 111.7MB in the beginning and 52.2MB in the end (delta: 59.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-21 16:21:08,451 INFO L158 Benchmark]: TraceAbstraction took 46858.23ms. Allocated memory was 163.6MB in the beginning and 717.2MB in the end (delta: 553.6MB). Free memory was 51.7MB in the beginning and 409.3MB in the end (delta: -357.7MB). Peak memory consumption was 199.1MB. Max. memory is 16.1GB. [2022-11-21 16:21:08,452 INFO L158 Benchmark]: Witness Printer took 50.54ms. Allocated memory is still 717.2MB. Free memory was 409.3MB in the beginning and 406.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:21:08,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 119.5MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.09ms. Allocated memory is still 163.6MB. Free memory was 127.3MB in the beginning and 117.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.20ms. Allocated memory is still 163.6MB. Free memory was 117.1MB in the beginning and 113.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.33ms. Allocated memory is still 163.6MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1163.97ms. Allocated memory is still 163.6MB. Free memory was 111.7MB in the beginning and 52.2MB in the end (delta: 59.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * TraceAbstraction took 46858.23ms. Allocated memory was 163.6MB in the beginning and 717.2MB in the end (delta: 553.6MB). Free memory was 51.7MB in the beginning and 409.3MB in the end (delta: -357.7MB). Peak memory consumption was 199.1MB. Max. memory is 16.1GB. * Witness Printer took 50.54ms. Allocated memory is still 717.2MB. Free memory was 409.3MB in the beginning and 406.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 137 PlacesBefore, 47 PlacesAfterwards, 129 TransitionsBefore, 38 TransitionsAfterwards, 2648 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 125 TotalNumberOfCompositions, 8024 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3581, independent: 3362, independent conditional: 0, independent unconditional: 3362, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1962, independent: 1898, independent conditional: 0, independent unconditional: 1898, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1962, independent: 1857, independent conditional: 0, independent unconditional: 1857, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 105, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 621, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 558, dependent conditional: 0, dependent unconditional: 558, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3581, independent: 1464, independent conditional: 0, independent unconditional: 1464, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 1962, unknown conditional: 0, unknown unconditional: 1962] , Statistics on independence cache: Total cache size (in pairs): 208, Positive cache size: 181, Positive conditional cache size: 0, Positive unconditional cache size: 181, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 866]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 159 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 46.7s, OverallIterations: 26, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.1s, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1156 SdHoareTripleChecker+Valid, 8.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1156 mSDsluCounter, 279 SdHoareTripleChecker+Invalid, 7.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 570 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5276 IncrementalHoareTripleChecker+Invalid, 5846 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 570 mSolverCounterUnsat, 66 mSDtfsCounter, 5276 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1756occurred in iteration=0, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 26 MinimizatonAttempts, 5713 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 26.4s InterpolantComputationTime, 473 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 447 ConstructedInterpolants, 0 QuantifiedInterpolants, 6793 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:21:08,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6064256-c1e8-4e60-86b8-18d7f1a77af3/bin/uautomizer-vX5HgA9Q3a/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