./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b 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_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:54:51,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:54:51,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:54:51,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:54:51,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:54:51,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:54:51,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:54:51,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:54:51,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:54:51,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:54:51,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:54:51,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:54:51,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:54:51,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:54:51,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:54:51,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:54:51,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:54:51,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:54:51,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:54:51,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:54:51,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:54:51,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:54:51,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:54:51,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:54:51,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:54:51,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:54:51,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:54:51,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:54:51,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:54:51,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:54:51,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:54:51,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:54:51,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:54:51,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:54:51,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:54:51,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:54:51,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:54:51,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:54:51,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:54:51,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:54:51,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:54:51,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 11:54:51,470 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:54:51,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:54:51,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:54:51,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:54:51,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:54:51,472 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:54:51,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:54:51,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:54:51,473 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:54:51,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:54:51,474 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:54:51,475 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:54:51,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:54:51,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:54:51,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:54:51,476 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 11:54:51,476 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 11:54:51,476 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 11:54:51,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:54:51,476 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:54:51,476 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:54:51,477 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:54:51,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:54:51,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:54:51,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:54:51,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:54:51,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:54:51,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:54:51,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:54:51,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:54:51,479 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_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 [2022-11-20 11:54:51,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:54:51,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:54:51,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:54:51,843 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:54:51,844 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:54:51,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/safe010_tso.i [2022-11-20 11:54:54,886 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:54:55,140 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:54:55,141 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/sv-benchmarks/c/pthread-wmm/safe010_tso.i [2022-11-20 11:54:55,164 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/data/734e25156/a100bbaf238046f795c80aa01cfda943/FLAG4434fa711 [2022-11-20 11:54:55,180 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/data/734e25156/a100bbaf238046f795c80aa01cfda943 [2022-11-20 11:54:55,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:54:55,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:54:55,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:54:55,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:54:55,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:54:55,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9b7dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55, skipping insertion in model container [2022-11-20 11:54:55,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:54:55,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:54:55,480 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_a4e690b7-d163-4171-b535-e5e5967ad417/sv-benchmarks/c/pthread-wmm/safe010_tso.i[945,958] [2022-11-20 11:54:55,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:54:55,727 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:54:55,743 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_a4e690b7-d163-4171-b535-e5e5967ad417/sv-benchmarks/c/pthread-wmm/safe010_tso.i[945,958] [2022-11-20 11:54:55,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:54:55,826 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:54:55,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55 WrapperNode [2022-11-20 11:54:55,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:54:55,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:54:55,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:54:55,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:54:55,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,881 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-11-20 11:54:55,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:54:55,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:54:55,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:54:55,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:54:55,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,941 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:54:55,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:54:55,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:54:55,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:54:55,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (1/1) ... [2022-11-20 11:54:55,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:54:55,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:54:55,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:54:56,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:54:56,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:54:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:54:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:54:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:54:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:54:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 11:54:56,040 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 11:54:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 11:54:56,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 11:54:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:54:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:54:56,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:54:56,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:54:56,044 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:54:56,260 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:54:56,262 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:54:56,497 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:54:56,504 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:54:56,504 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:54:56,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:54:56 BoogieIcfgContainer [2022-11-20 11:54:56,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:54:56,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:54:56,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:54:56,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:54:56,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:54:55" (1/3) ... [2022-11-20 11:54:56,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45de6dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:54:56, skipping insertion in model container [2022-11-20 11:54:56,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:54:55" (2/3) ... [2022-11-20 11:54:56,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45de6dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:54:56, skipping insertion in model container [2022-11-20 11:54:56,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:54:56" (3/3) ... [2022-11-20 11:54:56,517 INFO L112 eAbstractionObserver]: Analyzing ICFG safe010_tso.i [2022-11-20 11:54:56,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:54:56,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 11:54:56,537 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:54:56,582 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:54:56,616 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 11:54:56,632 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 82 transitions, 174 flow [2022-11-20 11:54:56,635 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 82 transitions, 174 flow [2022-11-20 11:54:56,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 82 transitions, 174 flow [2022-11-20 11:54:56,709 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-11-20 11:54:56,710 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:54:56,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2022-11-20 11:54:56,716 INFO L119 LiptonReduction]: Number of co-enabled transitions 972 [2022-11-20 11:54:59,757 INFO L134 LiptonReduction]: Checked pairs total: 1868 [2022-11-20 11:54:59,757 INFO L136 LiptonReduction]: Total number of compositions: 84 [2022-11-20 11:54:59,771 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 54 flow [2022-11-20 11:54:59,794 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 100 states, 94 states have (on average 2.4680851063829787) internal successors, (232), 99 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:59,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:54:59,818 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;@1045a817, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:54:59,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 11:54:59,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 94 states have (on average 2.4680851063829787) internal successors, (232), 99 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:59,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 11:54:59,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:59,826 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 11:54:59,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-20 11:54:59,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash 300, now seen corresponding path program 1 times [2022-11-20 11:54:59,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:54:59,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106040458] [2022-11-20 11:54:59,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:59,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:54:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:59,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:59,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:54:59,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106040458] [2022-11-20 11:54:59,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106040458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:59,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:59,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 11:54:59,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002687321] [2022-11-20 11:54:59,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:59,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:54:59,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:54:59,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:54:59,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:54:59,987 INFO L87 Difference]: Start difference. First operand has 100 states, 94 states have (on average 2.4680851063829787) internal successors, (232), 99 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:00,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:00,022 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2022-11-20 11:55:00,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:55:00,025 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-20 11:55:00,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:00,034 INFO L225 Difference]: With dead ends: 90 [2022-11-20 11:55:00,034 INFO L226 Difference]: Without dead ends: 90 [2022-11-20 11:55:00,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:55:00,039 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:00,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:00,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-20 11:55:00,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-11-20 11:55:00,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 88 states have (on average 2.272727272727273) internal successors, (200), 89 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 200 transitions. [2022-11-20 11:55:00,081 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 200 transitions. Word has length 1 [2022-11-20 11:55:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:00,081 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 200 transitions. [2022-11-20 11:55:00,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:00,082 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 200 transitions. [2022-11-20 11:55:00,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 11:55:00,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:00,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:00,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:55:00,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-20 11:55:00,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:00,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1315924693, now seen corresponding path program 1 times [2022-11-20 11:55:00,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:00,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270919691] [2022-11-20 11:55:00,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:00,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:00,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:00,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:00,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270919691] [2022-11-20 11:55:00,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270919691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:00,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:00,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:00,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501971737] [2022-11-20 11:55:00,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:00,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:00,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:00,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:00,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:00,534 INFO L87 Difference]: Start difference. First operand 90 states and 200 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-20 11:55:00,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:00,577 INFO L93 Difference]: Finished difference Result 74 states and 160 transitions. [2022-11-20 11:55:00,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:00,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2022-11-20 11:55:00,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:00,579 INFO L225 Difference]: With dead ends: 74 [2022-11-20 11:55:00,579 INFO L226 Difference]: Without dead ends: 74 [2022-11-20 11:55:00,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:00,580 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:00,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 6 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:00,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-20 11:55:00,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-20 11:55:00,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 2.191780821917808) internal successors, (160), 73 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:00,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2022-11-20 11:55:00,589 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 7 [2022-11-20 11:55:00,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:00,590 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2022-11-20 11:55:00,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-20 11:55:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2022-11-20 11:55:00,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 11:55:00,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:00,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:00,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:55:00,592 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-20 11:55:00,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:00,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1315924723, now seen corresponding path program 1 times [2022-11-20 11:55:00,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:00,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837691635] [2022-11-20 11:55:00,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:00,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:00,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:00,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837691635] [2022-11-20 11:55:00,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837691635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:00,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:00,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:00,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68491652] [2022-11-20 11:55:00,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:00,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:00,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:00,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:00,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:00,784 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-20 11:55:00,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:00,871 INFO L93 Difference]: Finished difference Result 118 states and 232 transitions. [2022-11-20 11:55:00,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:55:00,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2022-11-20 11:55:00,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:00,875 INFO L225 Difference]: With dead ends: 118 [2022-11-20 11:55:00,876 INFO L226 Difference]: Without dead ends: 84 [2022-11-20 11:55:00,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:00,881 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:00,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 11 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:55:00,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-20 11:55:00,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 72. [2022-11-20 11:55:00,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 2.056338028169014) internal successors, (146), 71 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:00,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 146 transitions. [2022-11-20 11:55:00,892 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 146 transitions. Word has length 7 [2022-11-20 11:55:00,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:00,892 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 146 transitions. [2022-11-20 11:55:00,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-20 11:55:00,893 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 146 transitions. [2022-11-20 11:55:00,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:55:00,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:00,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:00,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:55:00,895 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-20 11:55:00,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:00,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1098316141, now seen corresponding path program 1 times [2022-11-20 11:55:00,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:00,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779416521] [2022-11-20 11:55:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:00,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:01,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:01,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:01,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779416521] [2022-11-20 11:55:01,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779416521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:01,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:01,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:01,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540747612] [2022-11-20 11:55:01,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:01,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:01,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:01,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:01,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:01,055 INFO L87 Difference]: Start difference. First operand 72 states and 146 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:01,108 INFO L93 Difference]: Finished difference Result 78 states and 150 transitions. [2022-11-20 11:55:01,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:55:01,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 11:55:01,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:01,109 INFO L225 Difference]: With dead ends: 78 [2022-11-20 11:55:01,110 INFO L226 Difference]: Without dead ends: 66 [2022-11-20 11:55:01,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:01,111 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:01,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:01,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-20 11:55:01,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-20 11:55:01,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 2.0) internal successors, (130), 65 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 130 transitions. [2022-11-20 11:55:01,117 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 130 transitions. Word has length 8 [2022-11-20 11:55:01,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:01,118 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 130 transitions. [2022-11-20 11:55:01,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,118 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 130 transitions. [2022-11-20 11:55:01,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:55:01,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:01,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:01,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:55:01,120 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-20 11:55:01,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:01,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2138991853, now seen corresponding path program 1 times [2022-11-20 11:55:01,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:01,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685492075] [2022-11-20 11:55:01,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:01,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:01,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:01,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:01,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685492075] [2022-11-20 11:55:01,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685492075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:01,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:01,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:55:01,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107477362] [2022-11-20 11:55:01,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:01,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:55:01,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:01,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:55:01,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:55:01,249 INFO L87 Difference]: Start difference. First operand 66 states and 130 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:01,298 INFO L93 Difference]: Finished difference Result 70 states and 130 transitions. [2022-11-20 11:55:01,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:01,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 11:55:01,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:01,299 INFO L225 Difference]: With dead ends: 70 [2022-11-20 11:55:01,299 INFO L226 Difference]: Without dead ends: 70 [2022-11-20 11:55:01,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:55:01,300 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:01,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 8 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:01,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-20 11:55:01,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 58. [2022-11-20 11:55:01,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.9298245614035088) internal successors, (110), 57 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 110 transitions. [2022-11-20 11:55:01,305 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 110 transitions. Word has length 8 [2022-11-20 11:55:01,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:01,305 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 110 transitions. [2022-11-20 11:55:01,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,306 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 110 transitions. [2022-11-20 11:55:01,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 11:55:01,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:01,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:01,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:55:01,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-20 11:55:01,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:01,307 INFO L85 PathProgramCache]: Analyzing trace with hash -311969101, now seen corresponding path program 1 times [2022-11-20 11:55:01,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:01,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423664818] [2022-11-20 11:55:01,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:01,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:01,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:01,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423664818] [2022-11-20 11:55:01,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423664818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:01,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:01,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:01,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822835999] [2022-11-20 11:55:01,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:01,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:55:01,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:01,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:55:01,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:01,464 INFO L87 Difference]: Start difference. First operand 58 states and 110 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:01,565 INFO L93 Difference]: Finished difference Result 85 states and 152 transitions. [2022-11-20 11:55:01,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:55:01,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-20 11:55:01,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:01,567 INFO L225 Difference]: With dead ends: 85 [2022-11-20 11:55:01,567 INFO L226 Difference]: Without dead ends: 70 [2022-11-20 11:55:01,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:55:01,570 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 29 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:01,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 10 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:55:01,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-20 11:55:01,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 58. [2022-11-20 11:55:01,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.894736842105263) internal successors, (108), 57 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 108 transitions. [2022-11-20 11:55:01,587 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 108 transitions. Word has length 9 [2022-11-20 11:55:01,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:01,588 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 108 transitions. [2022-11-20 11:55:01,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,588 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 108 transitions. [2022-11-20 11:55:01,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 11:55:01,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:01,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:01,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:55:01,590 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-20 11:55:01,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:01,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1923076209, now seen corresponding path program 2 times [2022-11-20 11:55:01,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:01,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856860213] [2022-11-20 11:55:01,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:01,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:01,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:01,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856860213] [2022-11-20 11:55:01,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856860213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:01,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:01,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:55:01,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288130214] [2022-11-20 11:55:01,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:01,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:55:01,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:01,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:55:01,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:55:01,705 INFO L87 Difference]: Start difference. First operand 58 states and 108 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:01,786 INFO L93 Difference]: Finished difference Result 65 states and 113 transitions. [2022-11-20 11:55:01,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:55:01,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-20 11:55:01,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:01,787 INFO L225 Difference]: With dead ends: 65 [2022-11-20 11:55:01,787 INFO L226 Difference]: Without dead ends: 33 [2022-11-20 11:55:01,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:55:01,788 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 43 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:01,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 9 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:55:01,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-20 11:55:01,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-20 11:55:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.6875) internal successors, (54), 32 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 54 transitions. [2022-11-20 11:55:01,791 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 54 transitions. Word has length 9 [2022-11-20 11:55:01,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:01,791 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 54 transitions. [2022-11-20 11:55:01,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2022-11-20 11:55:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 11:55:01,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:01,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:01,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:55:01,793 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-20 11:55:01,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:01,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1082389865, now seen corresponding path program 1 times [2022-11-20 11:55:01,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:01,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178059821] [2022-11-20 11:55:01,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:01,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:01,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:01,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:01,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178059821] [2022-11-20 11:55:01,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178059821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:01,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:01,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:55:01,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857166324] [2022-11-20 11:55:01,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:01,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:01,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:01,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:01,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:01,882 INFO L87 Difference]: Start difference. First operand 33 states and 54 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2022-11-20 11:55:01,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:01,916 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2022-11-20 11:55:01,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:01,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 [2022-11-20 11:55:01,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:01,917 INFO L225 Difference]: With dead ends: 24 [2022-11-20 11:55:01,918 INFO L226 Difference]: Without dead ends: 24 [2022-11-20 11:55:01,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:01,919 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:01,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:01,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-20 11:55:01,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-20 11:55:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.434782608695652) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2022-11-20 11:55:01,921 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 33 transitions. Word has length 10 [2022-11-20 11:55:01,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:01,922 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 33 transitions. [2022-11-20 11:55:01,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2022-11-20 11:55:01,922 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2022-11-20 11:55:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 11:55:01,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:01,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:01,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:55:01,923 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-20 11:55:01,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:01,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1537023627, now seen corresponding path program 1 times [2022-11-20 11:55:01,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:01,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300022695] [2022-11-20 11:55:01,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:01,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:02,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:02,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:02,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300022695] [2022-11-20 11:55:02,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300022695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:02,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:02,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:02,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681438372] [2022-11-20 11:55:02,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:02,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:02,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:02,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:02,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:02,021 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:02,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:02,036 INFO L93 Difference]: Finished difference Result 16 states and 22 transitions. [2022-11-20 11:55:02,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:02,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 11:55:02,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:02,037 INFO L225 Difference]: With dead ends: 16 [2022-11-20 11:55:02,037 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:55:02,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:02,038 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:02,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:02,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:55:02,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:55:02,040 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) [2022-11-20 11:55:02,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:55:02,041 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-20 11:55:02,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:02,041 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:55:02,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:02,042 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:55:02,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:55:02,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2022-11-20 11:55:02,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-20 11:55:02,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-20 11:55:02,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-20 11:55:02,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2022-11-20 11:55:02,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-11-20 11:55:02,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-20 11:55:02,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-20 11:55:02,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:55:02,050 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:02,052 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:55:02,052 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:55:02,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:55:02 BasicIcfg [2022-11-20 11:55:02,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:55:02,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:55:02,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:55:02,061 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:55:02,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:54:56" (3/4) ... [2022-11-20 11:55:02,064 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:55:02,071 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 11:55:02,071 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 11:55:02,078 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-20 11:55:02,078 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:55:02,078 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 11:55:02,078 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:55:02,117 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:55:02,117 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:55:02,118 INFO L158 Benchmark]: Toolchain (without parser) took 6929.03ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 96.5MB in the beginning and 132.1MB in the end (delta: -35.6MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2022-11-20 11:55:02,118 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:02,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 636.55ms. Allocated memory is still 136.3MB. Free memory was 96.1MB in the beginning and 76.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:55:02,119 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.21ms. Allocated memory is still 136.3MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:55:02,119 INFO L158 Benchmark]: Boogie Preprocessor took 57.82ms. Allocated memory is still 136.3MB. Free memory was 74.3MB in the beginning and 73.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:55:02,120 INFO L158 Benchmark]: RCFGBuilder took 560.98ms. Allocated memory is still 136.3MB. Free memory was 73.0MB in the beginning and 60.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:55:02,120 INFO L158 Benchmark]: TraceAbstraction took 5545.51ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 59.2MB in the beginning and 135.2MB in the end (delta: -76.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:02,121 INFO L158 Benchmark]: Witness Printer took 57.24ms. Allocated memory is still 192.9MB. Free memory was 135.2MB in the beginning and 132.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:55:02,123 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 636.55ms. Allocated memory is still 136.3MB. Free memory was 96.1MB in the beginning and 76.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.21ms. Allocated memory is still 136.3MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.82ms. Allocated memory is still 136.3MB. Free memory was 74.3MB in the beginning and 73.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 560.98ms. Allocated memory is still 136.3MB. Free memory was 73.0MB in the beginning and 60.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5545.51ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 59.2MB in the beginning and 135.2MB in the end (delta: -76.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.24ms. Allocated memory is still 192.9MB. Free memory was 135.2MB in the beginning and 132.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 87 PlacesBefore, 28 PlacesAfterwards, 82 TransitionsBefore, 22 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 1868 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1227, independent: 1159, independent conditional: 0, independent unconditional: 1159, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 763, independent: 739, independent conditional: 0, independent unconditional: 739, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 763, independent: 735, independent conditional: 0, independent unconditional: 735, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1227, independent: 420, independent conditional: 0, independent unconditional: 420, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 763, unknown conditional: 0, unknown unconditional: 763] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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: -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: 756]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 97 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 136 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 136 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 30 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:55:02,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e690b7-d163-4171-b535-e5e5967ad417/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE