./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f 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_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8 --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 ac99c7435b3707a16823c102e546d1d8821c1d75e1c740ce64249f2f34cab350 --- 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-e04fb08 [2022-11-16 12:30:55,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:30:55,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:30:55,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:30:55,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:30:55,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:30:55,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:30:55,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:30:55,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:30:55,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:30:55,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:30:55,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:30:55,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:30:55,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:30:55,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:30:55,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:30:55,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:30:55,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:30:55,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:30:55,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:30:55,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:30:55,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:30:55,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:30:55,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:30:55,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:30:55,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:30:55,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:30:55,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:30:55,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:30:55,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:30:55,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:30:55,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:30:55,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:30:55,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:30:55,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:30:55,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:30:55,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:30:55,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:30:55,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:30:55,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:30:55,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:30:55,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 12:30:55,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:30:55,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:30:55,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:30:55,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:30:55,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:30:55,898 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:30:55,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:30:55,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:30:55,899 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:30:55,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:30:55,900 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:30:55,900 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:30:55,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:30:55,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:30:55,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:30:55,902 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 12:30:55,902 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 12:30:55,902 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 12:30:55,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:30:55,903 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:30:55,903 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:30:55,903 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:30:55,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:30:55,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:30:55,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:30:55,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:30:55,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:30:55,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:30:55,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:30:55,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:30:55,906 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_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac99c7435b3707a16823c102e546d1d8821c1d75e1c740ce64249f2f34cab350 [2022-11-16 12:30:56,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:30:56,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:30:56,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:30:56,316 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:30:56,319 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:30:56,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:30:56,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/data/f225e54cf/e701b9da06c7461f96e692dcef122a08/FLAGb80c6530b [2022-11-16 12:30:57,120 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:30:57,121 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:30:57,139 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/data/f225e54cf/e701b9da06c7461f96e692dcef122a08/FLAGb80c6530b [2022-11-16 12:30:57,352 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/data/f225e54cf/e701b9da06c7461f96e692dcef122a08 [2022-11-16 12:30:57,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:30:57,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:30:57,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:30:57,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:30:57,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:30:57,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:57" (1/1) ... [2022-11-16 12:30:57,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37cb4fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:57, skipping insertion in model container [2022-11-16 12:30:57,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:57" (1/1) ... [2022-11-16 12:30:57,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:30:57,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:30:57,757 WARN L229 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_ca846359-2a2e-41a4-954b-16f97e605661/sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 12:30:58,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:30:58,149 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:30:58,169 WARN L229 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_ca846359-2a2e-41a4-954b-16f97e605661/sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 12:30:58,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:30:58,291 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:30:58,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58 WrapperNode [2022-11-16 12:30:58,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:30:58,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:30:58,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:30:58,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:30:58,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,406 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2022-11-16 12:30:58,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:30:58,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:30:58,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:30:58,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:30:58,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,471 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:30:58,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:30:58,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:30:58,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:30:58,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (1/1) ... [2022-11-16 12:30:58,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:30:58,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:30:58,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:30:58,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:30:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:30:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:30:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:30:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:30:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:30:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:30:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:30:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:30:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:30:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 12:30:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 12:30:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:30:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:30:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:30:58,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:30:58,607 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:30:58,867 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:30:58,885 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:30:59,331 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:30:59,673 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:30:59,674 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:30:59,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:59 BoogieIcfgContainer [2022-11-16 12:30:59,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:30:59,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:30:59,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:30:59,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:30:59,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:30:57" (1/3) ... [2022-11-16 12:30:59,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f8c9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:59, skipping insertion in model container [2022-11-16 12:30:59,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:58" (2/3) ... [2022-11-16 12:30:59,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f8c9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:59, skipping insertion in model container [2022-11-16 12:30:59,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:59" (3/3) ... [2022-11-16 12:30:59,720 INFO L112 eAbstractionObserver]: Analyzing ICFG mix045_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:30:59,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:30:59,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-16 12:30:59,746 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:30:59,935 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:30:59,999 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 12:31:00,021 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 128 transitions, 271 flow [2022-11-16 12:31:00,034 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 128 transitions, 271 flow [2022-11-16 12:31:00,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 128 transitions, 271 flow [2022-11-16 12:31:00,160 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-11-16 12:31:00,161 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:31:00,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 125 events. 2/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-11-16 12:31:00,173 INFO L119 LiptonReduction]: Number of co-enabled transitions 2524 [2022-11-16 12:31:07,508 INFO L134 LiptonReduction]: Checked pairs total: 6768 [2022-11-16 12:31:07,508 INFO L136 LiptonReduction]: Total number of compositions: 126 [2022-11-16 12:31:07,527 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 36 transitions, 87 flow [2022-11-16 12:31:07,654 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1288 states, 1273 states have (on average 3.3747054202670856) internal successors, (4296), 1287 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:07,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:31:07,688 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;@c8a1622, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:31:07,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-16 12:31:07,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 1288 states, 1273 states have (on average 3.3747054202670856) internal successors, (4296), 1287 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:07,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 12:31:07,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:07,702 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 12:31:07,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:07,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:07,710 INFO L85 PathProgramCache]: Analyzing trace with hash 552, now seen corresponding path program 1 times [2022-11-16 12:31:07,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:07,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019190644] [2022-11-16 12:31:07,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:07,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:07,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:07,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:07,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019190644] [2022-11-16 12:31:07,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019190644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:07,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:07,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 12:31:07,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969271931] [2022-11-16 12:31:07,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:07,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:31:07,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:07,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:31:07,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:31:07,909 INFO L87 Difference]: Start difference. First operand has 1288 states, 1273 states have (on average 3.3747054202670856) internal successors, (4296), 1287 states have internal predecessors, (4296), 0 states have call successors, (0), 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) [2022-11-16 12:31:08,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:08,071 INFO L93 Difference]: Finished difference Result 1214 states and 3934 transitions. [2022-11-16 12:31:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:31:08,074 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 [2022-11-16 12:31:08,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:08,119 INFO L225 Difference]: With dead ends: 1214 [2022-11-16 12:31:08,120 INFO L226 Difference]: Without dead ends: 1214 [2022-11-16 12:31:08,121 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 [2022-11-16 12:31:08,127 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:08,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:31:08,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-11-16 12:31:08,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1214. [2022-11-16 12:31:08,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 1209 states have (on average 3.2539288668320925) internal successors, (3934), 1213 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:08,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 3934 transitions. [2022-11-16 12:31:08,292 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 3934 transitions. Word has length 1 [2022-11-16 12:31:08,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:08,293 INFO L495 AbstractCegarLoop]: Abstraction has 1214 states and 3934 transitions. [2022-11-16 12:31:08,294 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) [2022-11-16 12:31:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 3934 transitions. [2022-11-16 12:31:08,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 12:31:08,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:08,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 12:31:08,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:31:08,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:08,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:08,296 INFO L85 PathProgramCache]: Analyzing trace with hash 542163, now seen corresponding path program 1 times [2022-11-16 12:31:08,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:08,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012834346] [2022-11-16 12:31:08,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:08,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:08,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:08,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:08,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012834346] [2022-11-16 12:31:08,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012834346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:08,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:08,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:31:08,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101172830] [2022-11-16 12:31:08,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:08,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:31:08,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:31:08,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:31:08,730 INFO L87 Difference]: Start difference. First operand 1214 states and 3934 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:08,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:08,892 INFO L93 Difference]: Finished difference Result 992 states and 3169 transitions. [2022-11-16 12:31:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:31:08,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-16 12:31:08,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:08,906 INFO L225 Difference]: With dead ends: 992 [2022-11-16 12:31:08,907 INFO L226 Difference]: Without dead ends: 962 [2022-11-16 12:31:08,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:31:08,908 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:08,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:31:08,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-11-16 12:31:08,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-11-16 12:31:08,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 960 states have (on average 3.21875) internal successors, (3090), 961 states have internal predecessors, (3090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 3090 transitions. [2022-11-16 12:31:08,966 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 3090 transitions. Word has length 3 [2022-11-16 12:31:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:08,966 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 3090 transitions. [2022-11-16 12:31:08,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:08,967 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 3090 transitions. [2022-11-16 12:31:08,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 12:31:08,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:08,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:08,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:31:08,970 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:08,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:08,971 INFO L85 PathProgramCache]: Analyzing trace with hash 991373452, now seen corresponding path program 1 times [2022-11-16 12:31:08,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:08,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861538583] [2022-11-16 12:31:08,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:08,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:09,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:09,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861538583] [2022-11-16 12:31:09,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861538583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:09,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:09,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:31:09,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151294133] [2022-11-16 12:31:09,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:09,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:31:09,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:09,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:31:09,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:31:09,595 INFO L87 Difference]: Start difference. First operand 962 states and 3090 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:09,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:09,842 INFO L93 Difference]: Finished difference Result 812 states and 2575 transitions. [2022-11-16 12:31:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:31:09,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-16 12:31:09,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:09,850 INFO L225 Difference]: With dead ends: 812 [2022-11-16 12:31:09,850 INFO L226 Difference]: Without dead ends: 812 [2022-11-16 12:31:09,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:31:09,852 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 42 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:09,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 20 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:31:09,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-11-16 12:31:09,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2022-11-16 12:31:09,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 811 states have (on average 3.1750924784217016) internal successors, (2575), 811 states have internal predecessors, (2575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:09,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 2575 transitions. [2022-11-16 12:31:09,915 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 2575 transitions. Word has length 10 [2022-11-16 12:31:09,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:09,916 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 2575 transitions. [2022-11-16 12:31:09,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:09,917 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 2575 transitions. [2022-11-16 12:31:09,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 12:31:09,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:09,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:09,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:31:09,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:09,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:09,923 INFO L85 PathProgramCache]: Analyzing trace with hash 991373423, now seen corresponding path program 1 times [2022-11-16 12:31:09,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:09,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454561790] [2022-11-16 12:31:09,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:09,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:10,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:10,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:10,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454561790] [2022-11-16 12:31:10,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454561790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:10,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:10,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:31:10,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981627228] [2022-11-16 12:31:10,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:10,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:31:10,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:10,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:31:10,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:31:10,126 INFO L87 Difference]: Start difference. First operand 812 states and 2575 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-11-16 12:31:10,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:10,287 INFO L93 Difference]: Finished difference Result 942 states and 2874 transitions. [2022-11-16 12:31:10,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:31:10,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2022-11-16 12:31:10,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:10,293 INFO L225 Difference]: With dead ends: 942 [2022-11-16 12:31:10,293 INFO L226 Difference]: Without dead ends: 792 [2022-11-16 12:31:10,293 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 [2022-11-16 12:31:10,294 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:10,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 8 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:31:10,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2022-11-16 12:31:10,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2022-11-16 12:31:10,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 3.15929203539823) internal successors, (2499), 791 states have internal predecessors, (2499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:10,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 2499 transitions. [2022-11-16 12:31:10,322 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 2499 transitions. Word has length 10 [2022-11-16 12:31:10,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:10,323 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 2499 transitions. [2022-11-16 12:31:10,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-11-16 12:31:10,323 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 2499 transitions. [2022-11-16 12:31:10,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:31:10,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:10,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:10,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:31:10,326 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:10,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:10,327 INFO L85 PathProgramCache]: Analyzing trace with hash 651027894, now seen corresponding path program 1 times [2022-11-16 12:31:10,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:10,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139399074] [2022-11-16 12:31:10,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:10,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:10,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:10,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:10,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139399074] [2022-11-16 12:31:10,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139399074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:10,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:10,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:31:10,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194534856] [2022-11-16 12:31:10,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:10,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:31:10,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:10,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:31:10,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:31:10,502 INFO L87 Difference]: Start difference. First operand 792 states and 2499 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) 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) [2022-11-16 12:31:10,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:10,675 INFO L93 Difference]: Finished difference Result 852 states and 2592 transitions. [2022-11-16 12:31:10,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:31:10,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) 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 [2022-11-16 12:31:10,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:10,681 INFO L225 Difference]: With dead ends: 852 [2022-11-16 12:31:10,682 INFO L226 Difference]: Without dead ends: 712 [2022-11-16 12:31:10,682 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 [2022-11-16 12:31:10,683 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 30 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:10,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 10 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:31:10,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2022-11-16 12:31:10,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2022-11-16 12:31:10,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 3.1153305203938118) internal successors, (2215), 711 states have internal predecessors, (2215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:10,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 2215 transitions. [2022-11-16 12:31:10,721 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 2215 transitions. Word has length 11 [2022-11-16 12:31:10,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:10,722 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 2215 transitions. [2022-11-16 12:31:10,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) 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) [2022-11-16 12:31:10,723 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 2215 transitions. [2022-11-16 12:31:10,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 12:31:10,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:10,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:10,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:31:10,725 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:10,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:10,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1292981385, now seen corresponding path program 1 times [2022-11-16 12:31:10,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:10,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211218769] [2022-11-16 12:31:10,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:10,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:10,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:10,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211218769] [2022-11-16 12:31:10,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211218769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:10,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:10,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:31:10,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974090824] [2022-11-16 12:31:10,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:10,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:31:10,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:10,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:31:10,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:31:10,891 INFO L87 Difference]: Start difference. First operand 712 states and 2215 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:11,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:11,061 INFO L93 Difference]: Finished difference Result 796 states and 2398 transitions. [2022-11-16 12:31:11,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:31:11,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 12:31:11,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:11,067 INFO L225 Difference]: With dead ends: 796 [2022-11-16 12:31:11,067 INFO L226 Difference]: Without dead ends: 696 [2022-11-16 12:31:11,068 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 [2022-11-16 12:31:11,069 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:11,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 8 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:31:11,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-11-16 12:31:11,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2022-11-16 12:31:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 695 states have (on average 3.1007194244604315) internal successors, (2155), 695 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:11,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 2155 transitions. [2022-11-16 12:31:11,097 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 2155 transitions. Word has length 12 [2022-11-16 12:31:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:11,098 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 2155 transitions. [2022-11-16 12:31:11,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:11,098 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 2155 transitions. [2022-11-16 12:31:11,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 12:31:11,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:11,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:11,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:31:11,101 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:11,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:11,102 INFO L85 PathProgramCache]: Analyzing trace with hash -749317499, now seen corresponding path program 1 times [2022-11-16 12:31:11,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:11,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715019868] [2022-11-16 12:31:11,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:11,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:11,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:11,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:11,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715019868] [2022-11-16 12:31:11,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715019868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:11,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:11,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:31:11,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896028281] [2022-11-16 12:31:11,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:11,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:31:11,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:11,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:31:11,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:31:11,279 INFO L87 Difference]: Start difference. First operand 696 states and 2155 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:11,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:11,402 INFO L93 Difference]: Finished difference Result 602 states and 1624 transitions. [2022-11-16 12:31:11,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:31:11,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 12:31:11,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:11,406 INFO L225 Difference]: With dead ends: 602 [2022-11-16 12:31:11,406 INFO L226 Difference]: Without dead ends: 452 [2022-11-16 12:31:11,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:31:11,407 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 44 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:11,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 6 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:31:11,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-16 12:31:11,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2022-11-16 12:31:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 2.614190687361419) internal successors, (1179), 451 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:11,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 1179 transitions. [2022-11-16 12:31:11,424 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1179 transitions. Word has length 13 [2022-11-16 12:31:11,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:11,424 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 1179 transitions. [2022-11-16 12:31:11,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:11,425 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1179 transitions. [2022-11-16 12:31:11,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 12:31:11,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:11,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:11,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:31:11,427 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:11,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:11,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1734895918, now seen corresponding path program 1 times [2022-11-16 12:31:11,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:11,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854786093] [2022-11-16 12:31:11,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:11,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:11,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:11,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:11,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854786093] [2022-11-16 12:31:11,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854786093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:11,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:11,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:31:11,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942144245] [2022-11-16 12:31:11,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:11,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:31:11,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:11,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:31:11,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:31:11,752 INFO L87 Difference]: Start difference. First operand 452 states and 1179 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:12,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:12,074 INFO L93 Difference]: Finished difference Result 970 states and 2417 transitions. [2022-11-16 12:31:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:31:12,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-16 12:31:12,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:12,078 INFO L225 Difference]: With dead ends: 970 [2022-11-16 12:31:12,079 INFO L226 Difference]: Without dead ends: 588 [2022-11-16 12:31:12,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:31:12,080 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 59 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:12,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 11 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:31:12,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-11-16 12:31:12,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 469. [2022-11-16 12:31:12,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 2.4316239316239314) internal successors, (1138), 468 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:12,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 1138 transitions. [2022-11-16 12:31:12,099 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 1138 transitions. Word has length 16 [2022-11-16 12:31:12,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:12,100 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 1138 transitions. [2022-11-16 12:31:12,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:12,100 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 1138 transitions. [2022-11-16 12:31:12,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 12:31:12,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:12,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:12,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:31:12,102 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:12,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:12,102 INFO L85 PathProgramCache]: Analyzing trace with hash -2039229782, now seen corresponding path program 1 times [2022-11-16 12:31:12,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:12,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661826746] [2022-11-16 12:31:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:12,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:12,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:12,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661826746] [2022-11-16 12:31:12,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661826746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:12,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:12,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:31:12,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132220926] [2022-11-16 12:31:12,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:12,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:31:12,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:12,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:31:12,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:31:12,378 INFO L87 Difference]: Start difference. First operand 469 states and 1138 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:12,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:12,553 INFO L93 Difference]: Finished difference Result 356 states and 781 transitions. [2022-11-16 12:31:12,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:31:12,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-16 12:31:12,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:12,555 INFO L225 Difference]: With dead ends: 356 [2022-11-16 12:31:12,555 INFO L226 Difference]: Without dead ends: 273 [2022-11-16 12:31:12,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:31:12,557 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 82 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:12,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 8 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:31:12,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-11-16 12:31:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 267. [2022-11-16 12:31:12,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 266 states have (on average 2.142857142857143) internal successors, (570), 266 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 570 transitions. [2022-11-16 12:31:12,568 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 570 transitions. Word has length 16 [2022-11-16 12:31:12,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:12,568 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 570 transitions. [2022-11-16 12:31:12,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:12,569 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 570 transitions. [2022-11-16 12:31:12,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 12:31:12,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:12,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:12,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:31:12,571 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:12,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:12,571 INFO L85 PathProgramCache]: Analyzing trace with hash 767621065, now seen corresponding path program 1 times [2022-11-16 12:31:12,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:12,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790829671] [2022-11-16 12:31:12,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:12,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:12,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:12,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790829671] [2022-11-16 12:31:12,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790829671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:12,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:12,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:31:12,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611756141] [2022-11-16 12:31:12,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:12,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:31:12,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:12,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:31:12,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:31:12,916 INFO L87 Difference]: Start difference. First operand 267 states and 570 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:13,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:13,080 INFO L93 Difference]: Finished difference Result 234 states and 504 transitions. [2022-11-16 12:31:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:31:13,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 12:31:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:13,082 INFO L225 Difference]: With dead ends: 234 [2022-11-16 12:31:13,082 INFO L226 Difference]: Without dead ends: 137 [2022-11-16 12:31:13,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:31:13,083 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 88 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:13,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 4 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:31:13,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-16 12:31:13,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 128. [2022-11-16 12:31:13,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 2.1653543307086616) internal successors, (275), 127 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 275 transitions. [2022-11-16 12:31:13,088 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 275 transitions. Word has length 19 [2022-11-16 12:31:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:13,089 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 275 transitions. [2022-11-16 12:31:13,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:13,089 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 275 transitions. [2022-11-16 12:31:13,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:31:13,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:13,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:13,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:31:13,091 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:13,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:13,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1135304690, now seen corresponding path program 1 times [2022-11-16 12:31:13,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:13,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773602856] [2022-11-16 12:31:13,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:13,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:14,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:14,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:14,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773602856] [2022-11-16 12:31:14,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773602856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:14,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:14,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:31:14,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211592744] [2022-11-16 12:31:14,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:14,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:31:14,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:14,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:31:14,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:31:14,337 INFO L87 Difference]: Start difference. First operand 128 states and 275 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:14,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:14,724 INFO L93 Difference]: Finished difference Result 149 states and 311 transitions. [2022-11-16 12:31:14,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:31:14,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:31:14,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:14,726 INFO L225 Difference]: With dead ends: 149 [2022-11-16 12:31:14,726 INFO L226 Difference]: Without dead ends: 74 [2022-11-16 12:31:14,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:31:14,727 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 54 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:14,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 14 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:31:14,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-16 12:31:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-16 12:31:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.7945205479452055) internal successors, (131), 73 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:14,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 131 transitions. [2022-11-16 12:31:14,731 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 131 transitions. Word has length 23 [2022-11-16 12:31:14,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:14,731 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 131 transitions. [2022-11-16 12:31:14,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:14,732 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 131 transitions. [2022-11-16 12:31:14,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:31:14,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:14,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:14,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:31:14,733 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:14,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:14,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1492886386, now seen corresponding path program 2 times [2022-11-16 12:31:14,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:14,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867710820] [2022-11-16 12:31:14,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:14,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:31:14,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:31:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:31:15,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:31:15,004 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:31:15,005 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-16 12:31:15,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-16 12:31:15,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-16 12:31:15,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-16 12:31:15,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-16 12:31:15,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-16 12:31:15,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-16 12:31:15,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-16 12:31:15,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-16 12:31:15,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-16 12:31:15,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-16 12:31:15,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-16 12:31:15,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-16 12:31:15,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:31:15,013 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:15,021 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:31:15,022 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:31:15,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:31:15 BasicIcfg [2022-11-16 12:31:15,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:31:15,149 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:31:15,149 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:31:15,149 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:31:15,150 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:59" (3/4) ... [2022-11-16 12:31:15,153 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:31:15,153 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:31:15,154 INFO L158 Benchmark]: Toolchain (without parser) took 17795.68ms. Allocated memory was 119.5MB in the beginning and 197.1MB in the end (delta: 77.6MB). Free memory was 76.5MB in the beginning and 89.1MB in the end (delta: -12.6MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2022-11-16 12:31:15,154 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 119.5MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:31:15,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 931.13ms. Allocated memory is still 119.5MB. Free memory was 76.3MB in the beginning and 80.4MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:31:15,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.33ms. Allocated memory is still 119.5MB. Free memory was 80.4MB in the beginning and 78.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:31:15,156 INFO L158 Benchmark]: Boogie Preprocessor took 64.62ms. Allocated memory is still 119.5MB. Free memory was 78.0MB in the beginning and 75.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:31:15,156 INFO L158 Benchmark]: RCFGBuilder took 1199.46ms. Allocated memory is still 119.5MB. Free memory was 75.9MB in the beginning and 41.6MB in the end (delta: 34.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-16 12:31:15,156 INFO L158 Benchmark]: TraceAbstraction took 15469.42ms. Allocated memory was 119.5MB in the beginning and 197.1MB in the end (delta: 77.6MB). Free memory was 41.0MB in the beginning and 89.1MB in the end (delta: -48.1MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2022-11-16 12:31:15,157 INFO L158 Benchmark]: Witness Printer took 4.45ms. Allocated memory is still 197.1MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:31:15,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 119.5MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 931.13ms. Allocated memory is still 119.5MB. Free memory was 76.3MB in the beginning and 80.4MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.33ms. Allocated memory is still 119.5MB. Free memory was 80.4MB in the beginning and 78.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.62ms. Allocated memory is still 119.5MB. Free memory was 78.0MB in the beginning and 75.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1199.46ms. Allocated memory is still 119.5MB. Free memory was 75.9MB in the beginning and 41.6MB in the end (delta: 34.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15469.42ms. Allocated memory was 119.5MB in the beginning and 197.1MB in the end (delta: 77.6MB). Free memory was 41.0MB in the beginning and 89.1MB in the end (delta: -48.1MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Witness Printer took 4.45ms. Allocated memory is still 197.1MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 136 PlacesBefore, 45 PlacesAfterwards, 128 TransitionsBefore, 36 TransitionsAfterwards, 2524 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 126 TotalNumberOfCompositions, 6768 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3294, independent: 3106, independent conditional: 0, independent unconditional: 3106, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1739, independent: 1691, independent conditional: 0, independent unconditional: 1691, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1739, independent: 1668, independent conditional: 0, independent unconditional: 1668, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 71, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 591, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 551, dependent conditional: 0, dependent unconditional: 551, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3294, independent: 1415, independent conditional: 0, independent unconditional: 1415, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 1739, unknown conditional: 0, unknown unconditional: 1739] , Statistics on independence cache: Total cache size (in pairs): 229, Positive cache size: 204, Positive conditional cache size: 0, Positive unconditional cache size: 204, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L713] 0 int __unbuffered_p2_EBX = 0; [L731] 0 _Bool a$w_buff1_used; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L717] 0 int a$mem_tmp; [L726] 0 _Bool a$read_delayed; [L715] 0 int a = 0; [L725] 0 _Bool a$r_buff1_thd3; [L711] 0 int __unbuffered_p2_EAX = 0; [L723] 0 _Bool a$r_buff1_thd1; [L728] 0 int a$w_buff0; [L724] 0 _Bool a$r_buff1_thd2; [L730] 0 int a$w_buff1; [L716] 0 _Bool a$flush_delayed; [L722] 0 _Bool a$r_buff1_thd0; [L709] 0 int __unbuffered_cnt = 0; [L727] 0 int *a$read_delayed_var; [L733] 0 _Bool main$tmp_guard1; [L732] 0 _Bool main$tmp_guard0; [L729] 0 _Bool a$w_buff0_used; [L719] 0 _Bool a$r_buff0_thd1; [L718] 0 _Bool a$r_buff0_thd0; [L721] 0 _Bool a$r_buff0_thd3; [L720] 0 _Bool a$r_buff0_thd2; [L735] 0 int x = 0; [L737] 0 int y = 0; [L739] 0 int z = 0; [L841] 0 pthread_t t1193; [L842] FCALL, FORK 0 pthread_create(&t1193, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1193, ((void *)0), P0, ((void *)0))=-2, t1193={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L745] 1 a$w_buff1 = a$w_buff0 [L746] 1 a$w_buff0 = 1 [L747] 1 a$w_buff1_used = a$w_buff0_used [L748] 1 a$w_buff0_used = (_Bool)1 [L749] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L749] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L750] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L751] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L752] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L753] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L754] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L757] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L843] 0 pthread_t t1194; [L844] FCALL, FORK 0 pthread_create(&t1194, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1194, ((void *)0), P1, ((void *)0))=-1, t1193={5:0}, t1194={6:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L774] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L845] 0 pthread_t t1195; [L777] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L780] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L781] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L782] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L783] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L784] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L789] 2 return 0; [L846] FCALL, FORK 0 pthread_create(&t1195, ((void *)0), P2, ((void *)0)) VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1195, ((void *)0), P2, ((void *)0))=0, t1193={5:0}, t1194={6:0}, t1195={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L794] 3 y = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0] [L797] 3 z = 1 [L800] 3 __unbuffered_p2_EAX = z VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1] [L803] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L804] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L805] 3 a$flush_delayed = weak$$choice2 [L806] 3 a$mem_tmp = a [L807] 3 a = !a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff1) [L808] 3 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff0)) [L809] 3 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff1 : a$w_buff1)) [L810] 3 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used)) [L811] 3 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L812] 3 a$r_buff0_thd3 = weak$$choice2 ? a$r_buff0_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff0_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3)) [L813] 3 a$r_buff1_thd3 = weak$$choice2 ? a$r_buff1_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff1_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L814] 3 __unbuffered_p2_EBX = a [L815] 3 a = a$flush_delayed ? a$mem_tmp : a [L816] 3 a$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, z=1] [L760] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L761] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L762] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L763] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L764] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, z=1] [L767] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L769] 1 return 0; [L819] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L820] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L821] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L822] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L823] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, z=1] [L826] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L828] 3 return 0; [L848] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1193={5:0}, t1194={6:0}, t1195={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=2, z=1] [L850] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L850] RET 0 assume_abort_if_not(main$tmp_guard0) [L852] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L853] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L854] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L855] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L856] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1193={5:0}, t1194={6:0}, t1195={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=2, z=1] [L859] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L861] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, z=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 839]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 842]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 157 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 15.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 462 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 462 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 950 IncrementalHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 36 mSDtfsCounter, 950 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1288occurred in iteration=0, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 134 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 12:31:15,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8 --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 ac99c7435b3707a16823c102e546d1d8821c1d75e1c740ce64249f2f34cab350 --- 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-e04fb08 [2022-11-16 12:31:17,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:31:17,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:31:17,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:31:17,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:31:17,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:31:17,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:31:17,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:31:17,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:31:17,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:31:17,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:31:17,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:31:17,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:31:17,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:31:17,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:31:17,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:31:17,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:31:17,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:31:17,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:31:17,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:31:17,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:31:18,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:31:18,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:31:18,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:31:18,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:31:18,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:31:18,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:31:18,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:31:18,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:31:18,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:31:18,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:31:18,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:31:18,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:31:18,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:31:18,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:31:18,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:31:18,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:31:18,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:31:18,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:31:18,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:31:18,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:31:18,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-16 12:31:18,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:31:18,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:31:18,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:31:18,116 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:31:18,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:31:18,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:31:18,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:31:18,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:31:18,118 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:31:18,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:31:18,118 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:31:18,119 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:31:18,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:31:18,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:31:18,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:31:18,120 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 12:31:18,120 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 12:31:18,120 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 12:31:18,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:31:18,120 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:31:18,121 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:31:18,121 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:31:18,121 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:31:18,121 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:31:18,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:31:18,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:31:18,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:31:18,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:31:18,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:31:18,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:31:18,132 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:31:18,132 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:31:18,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:31:18,133 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/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_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8 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 -> ac99c7435b3707a16823c102e546d1d8821c1d75e1c740ce64249f2f34cab350 [2022-11-16 12:31:18,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:31:18,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:31:18,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:31:18,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:31:18,677 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:31:18,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:31:18,774 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/data/760c89926/48d338d605514ccda99fb12f88021f88/FLAGd5ca84f0c [2022-11-16 12:31:19,549 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:31:19,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:31:19,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/data/760c89926/48d338d605514ccda99fb12f88021f88/FLAGd5ca84f0c [2022-11-16 12:31:19,775 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/data/760c89926/48d338d605514ccda99fb12f88021f88 [2022-11-16 12:31:19,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:31:19,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:31:19,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:31:19,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:31:19,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:31:19,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:31:19" (1/1) ... [2022-11-16 12:31:19,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@135c3c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:19, skipping insertion in model container [2022-11-16 12:31:19,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:31:19" (1/1) ... [2022-11-16 12:31:19,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:31:19,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:31:20,059 WARN L229 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_ca846359-2a2e-41a4-954b-16f97e605661/sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 12:31:20,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:31:20,428 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:31:20,447 WARN L229 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_ca846359-2a2e-41a4-954b-16f97e605661/sv-benchmarks/c/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 12:31:20,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:31:20,607 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:31:20,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20 WrapperNode [2022-11-16 12:31:20,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:31:20,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:31:20,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:31:20,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:31:20,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,700 INFO L138 Inliner]: procedures = 179, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 130 [2022-11-16 12:31:20,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:31:20,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:31:20,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:31:20,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:31:20,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,756 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:31:20,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:31:20,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:31:20,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:31:20,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (1/1) ... [2022-11-16 12:31:20,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:31:20,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:31:20,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:31:20,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:31:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:31:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:31:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:31:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:31:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 12:31:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:31:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:31:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:31:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:31:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:31:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 12:31:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 12:31:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:31:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:31:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:31:20,883 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:31:21,137 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:31:21,140 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:31:21,710 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:31:21,961 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:31:21,962 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:31:21,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:31:21 BoogieIcfgContainer [2022-11-16 12:31:21,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:31:21,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:31:21,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:31:21,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:31:21,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:31:19" (1/3) ... [2022-11-16 12:31:21,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557480c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:31:21, skipping insertion in model container [2022-11-16 12:31:21,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:31:20" (2/3) ... [2022-11-16 12:31:21,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557480c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:31:21, skipping insertion in model container [2022-11-16 12:31:21,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:31:21" (3/3) ... [2022-11-16 12:31:21,980 INFO L112 eAbstractionObserver]: Analyzing ICFG mix045_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:31:22,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:31:22,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-16 12:31:22,005 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:31:22,093 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:31:22,135 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 12:31:22,155 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 129 transitions, 273 flow [2022-11-16 12:31:22,162 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 129 transitions, 273 flow [2022-11-16 12:31:22,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 129 transitions, 273 flow [2022-11-16 12:31:22,230 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-11-16 12:31:22,231 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:31:22,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-11-16 12:31:22,240 INFO L119 LiptonReduction]: Number of co-enabled transitions 2524 [2022-11-16 12:31:33,528 INFO L134 LiptonReduction]: Checked pairs total: 6961 [2022-11-16 12:31:33,529 INFO L136 LiptonReduction]: Total number of compositions: 128 [2022-11-16 12:31:33,539 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 36 transitions, 87 flow [2022-11-16 12:31:33,688 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1288 states, 1273 states have (on average 3.3747054202670856) internal successors, (4296), 1287 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:33,713 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:31:33,723 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;@5c83d676, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:31:33,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-16 12:31:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 1288 states, 1273 states have (on average 3.3747054202670856) internal successors, (4296), 1287 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:33,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 12:31:33,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:33,738 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 12:31:33,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:33,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:33,748 INFO L85 PathProgramCache]: Analyzing trace with hash 554, now seen corresponding path program 1 times [2022-11-16 12:31:33,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:31:33,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986601579] [2022-11-16 12:31:33,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:33,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:33,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:31:33,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:31:33,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:31:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:33,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:31:33,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:33,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:33,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:33,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:31:33,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986601579] [2022-11-16 12:31:33,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986601579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:33,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:33,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 12:31:33,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96804069] [2022-11-16 12:31:33,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:33,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:31:33,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:31:33,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:31:33,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:31:33,946 INFO L87 Difference]: Start difference. First operand has 1288 states, 1273 states have (on average 3.3747054202670856) internal successors, (4296), 1287 states have internal predecessors, (4296), 0 states have call successors, (0), 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) [2022-11-16 12:31:34,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:34,232 INFO L93 Difference]: Finished difference Result 1214 states and 3934 transitions. [2022-11-16 12:31:34,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:31:34,249 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 [2022-11-16 12:31:34,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:34,313 INFO L225 Difference]: With dead ends: 1214 [2022-11-16 12:31:34,316 INFO L226 Difference]: Without dead ends: 1214 [2022-11-16 12:31:34,317 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 [2022-11-16 12:31:34,321 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:34,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:31:34,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-11-16 12:31:34,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1214. [2022-11-16 12:31:34,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 1209 states have (on average 3.2539288668320925) internal successors, (3934), 1213 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:34,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 3934 transitions. [2022-11-16 12:31:34,504 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 3934 transitions. Word has length 1 [2022-11-16 12:31:34,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:34,505 INFO L495 AbstractCegarLoop]: Abstraction has 1214 states and 3934 transitions. [2022-11-16 12:31:34,505 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) [2022-11-16 12:31:34,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 3934 transitions. [2022-11-16 12:31:34,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 12:31:34,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:34,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 12:31:34,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:34,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:34,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:34,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:34,721 INFO L85 PathProgramCache]: Analyzing trace with hash 546071, now seen corresponding path program 1 times [2022-11-16 12:31:34,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:31:34,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976969703] [2022-11-16 12:31:34,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:34,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:34,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:31:34,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:31:34,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 12:31:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:34,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:31:34,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:34,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:34,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:34,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:31:34,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976969703] [2022-11-16 12:31:34,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976969703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:34,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:34,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:31:34,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259355581] [2022-11-16 12:31:34,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:34,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:31:34,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:31:34,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:31:34,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:31:34,890 INFO L87 Difference]: Start difference. First operand 1214 states and 3934 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:35,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:35,066 INFO L93 Difference]: Finished difference Result 992 states and 3169 transitions. [2022-11-16 12:31:35,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:31:35,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-16 12:31:35,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:35,080 INFO L225 Difference]: With dead ends: 992 [2022-11-16 12:31:35,080 INFO L226 Difference]: Without dead ends: 962 [2022-11-16 12:31:35,081 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 [2022-11-16 12:31:35,084 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:35,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:31:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-11-16 12:31:35,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-11-16 12:31:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 960 states have (on average 3.21875) internal successors, (3090), 961 states have internal predecessors, (3090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:35,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 3090 transitions. [2022-11-16 12:31:35,158 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 3090 transitions. Word has length 3 [2022-11-16 12:31:35,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:35,159 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 3090 transitions. [2022-11-16 12:31:35,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:35,159 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 3090 transitions. [2022-11-16 12:31:35,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:31:35,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:35,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:35,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:35,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:35,377 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:35,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:35,384 INFO L85 PathProgramCache]: Analyzing trace with hash -2012863394, now seen corresponding path program 1 times [2022-11-16 12:31:35,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:31:35,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522161368] [2022-11-16 12:31:35,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:35,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:35,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:31:35,394 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:31:35,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 12:31:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:35,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:31:35,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:35,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:35,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:31:35,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522161368] [2022-11-16 12:31:35,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522161368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:35,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:35,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:31:35,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125880033] [2022-11-16 12:31:35,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:35,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:31:35,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:31:35,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:31:35,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:31:35,624 INFO L87 Difference]: Start difference. First operand 962 states and 3090 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2022-11-16 12:31:35,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:35,868 INFO L93 Difference]: Finished difference Result 712 states and 1935 transitions. [2022-11-16 12:31:35,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:31:35,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 [2022-11-16 12:31:35,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:35,876 INFO L225 Difference]: With dead ends: 712 [2022-11-16 12:31:35,876 INFO L226 Difference]: Without dead ends: 562 [2022-11-16 12:31:35,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:31:35,880 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 37 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:35,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 10 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:31:35,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-11-16 12:31:35,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2022-11-16 12:31:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 560 states have (on average 2.6607142857142856) internal successors, (1490), 561 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:35,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1490 transitions. [2022-11-16 12:31:35,920 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1490 transitions. Word has length 9 [2022-11-16 12:31:35,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:35,920 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 1490 transitions. [2022-11-16 12:31:35,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2022-11-16 12:31:35,921 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1490 transitions. [2022-11-16 12:31:35,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 12:31:35,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:35,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:35,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:36,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:36,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:36,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:36,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1683874725, now seen corresponding path program 1 times [2022-11-16 12:31:36,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:31:36,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054557790] [2022-11-16 12:31:36,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:36,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:36,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:31:36,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:31:36,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 12:31:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:36,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:31:36,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:36,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:36,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:31:36,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054557790] [2022-11-16 12:31:36,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054557790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:36,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:36,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:31:36,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282617787] [2022-11-16 12:31:36,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:36,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:31:36,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:31:36,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:31:36,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:31:36,404 INFO L87 Difference]: Start difference. First operand 562 states and 1490 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:36,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:36,724 INFO L93 Difference]: Finished difference Result 352 states and 831 transitions. [2022-11-16 12:31:36,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:31:36,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 12:31:36,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:36,727 INFO L225 Difference]: With dead ends: 352 [2022-11-16 12:31:36,727 INFO L226 Difference]: Without dead ends: 282 [2022-11-16 12:31:36,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:31:36,729 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 48 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:36,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 18 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:31:36,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-11-16 12:31:36,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-11-16 12:31:36,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 280 states have (on average 2.3214285714285716) internal successors, (650), 281 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:36,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 650 transitions. [2022-11-16 12:31:36,742 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 650 transitions. Word has length 13 [2022-11-16 12:31:36,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:36,743 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 650 transitions. [2022-11-16 12:31:36,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:36,743 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 650 transitions. [2022-11-16 12:31:36,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 12:31:36,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:36,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:36,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:36,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:36,961 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:36,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:36,962 INFO L85 PathProgramCache]: Analyzing trace with hash 599265866, now seen corresponding path program 1 times [2022-11-16 12:31:36,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:31:36,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447641531] [2022-11-16 12:31:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:36,963 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:36,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:31:36,965 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:31:37,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 12:31:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:37,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:31:37,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:37,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:37,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:37,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:31:37,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447641531] [2022-11-16 12:31:37,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447641531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:37,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:37,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:31:37,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525868742] [2022-11-16 12:31:37,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:37,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:31:37,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:31:37,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:31:37,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:31:37,195 INFO L87 Difference]: Start difference. First operand 282 states and 650 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:37,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:37,552 INFO L93 Difference]: Finished difference Result 231 states and 546 transitions. [2022-11-16 12:31:37,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:31:37,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-16 12:31:37,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:37,554 INFO L225 Difference]: With dead ends: 231 [2022-11-16 12:31:37,554 INFO L226 Difference]: Without dead ends: 217 [2022-11-16 12:31:37,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:31:37,555 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 44 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:37,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 30 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:31:37,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-11-16 12:31:37,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2022-11-16 12:31:37,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 215 states have (on average 2.4186046511627906) internal successors, (520), 216 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:37,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 520 transitions. [2022-11-16 12:31:37,564 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 520 transitions. Word has length 17 [2022-11-16 12:31:37,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:37,565 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 520 transitions. [2022-11-16 12:31:37,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:37,565 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 520 transitions. [2022-11-16 12:31:37,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:31:37,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:37,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:37,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:37,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:37,782 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:37,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2068899343, now seen corresponding path program 1 times [2022-11-16 12:31:37,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:31:37,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589983933] [2022-11-16 12:31:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:37,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:37,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:31:37,785 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:31:37,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-16 12:31:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:37,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:31:37,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:38,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:38,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:38,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:31:38,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589983933] [2022-11-16 12:31:38,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589983933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:38,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:38,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:31:38,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463832010] [2022-11-16 12:31:38,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:38,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:31:38,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:31:38,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:31:38,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:31:38,384 INFO L87 Difference]: Start difference. First operand 217 states and 520 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:38,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:38,729 INFO L93 Difference]: Finished difference Result 251 states and 583 transitions. [2022-11-16 12:31:38,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:31:38,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-16 12:31:38,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:38,731 INFO L225 Difference]: With dead ends: 251 [2022-11-16 12:31:38,731 INFO L226 Difference]: Without dead ends: 251 [2022-11-16 12:31:38,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:31:38,733 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 56 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:38,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 15 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:31:38,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-16 12:31:38,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2022-11-16 12:31:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 247 states have (on average 2.3562753036437245) internal successors, (582), 248 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:38,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 582 transitions. [2022-11-16 12:31:38,743 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 582 transitions. Word has length 22 [2022-11-16 12:31:38,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:38,744 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 582 transitions. [2022-11-16 12:31:38,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:31:38,744 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 582 transitions. [2022-11-16 12:31:38,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 12:31:38,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:38,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:38,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:38,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:38,961 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 12:31:38,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:38,961 INFO L85 PathProgramCache]: Analyzing trace with hash -562605195, now seen corresponding path program 2 times [2022-11-16 12:31:38,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:31:38,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442069795] [2022-11-16 12:31:38,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:31:38,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:38,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:31:38,963 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:31:38,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-16 12:31:39,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:31:39,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-16 12:31:39,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:31:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:31:39,356 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-16 12:31:39,357 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:31:39,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-16 12:31:39,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-16 12:31:39,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-16 12:31:39,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-16 12:31:39,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-16 12:31:39,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-16 12:31:39,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-16 12:31:39,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-16 12:31:39,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-16 12:31:39,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-16 12:31:39,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-16 12:31:39,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-16 12:31:39,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-16 12:31:39,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:39,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:39,581 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-11-16 12:31:39,588 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:31:39,588 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:31:39,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:31:39 BasicIcfg [2022-11-16 12:31:39,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:31:39,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:31:39,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:31:39,706 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:31:39,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:31:21" (3/4) ... [2022-11-16 12:31:39,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:31:39,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:31:39,710 INFO L158 Benchmark]: Toolchain (without parser) took 19928.64ms. Allocated memory was 67.1MB in the beginning and 123.7MB in the end (delta: 56.6MB). Free memory was 46.0MB in the beginning and 79.6MB in the end (delta: -33.6MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2022-11-16 12:31:39,711 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 48.0MB in the end (delta: 48.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:31:39,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.85ms. Allocated memory is still 67.1MB. Free memory was 45.8MB in the beginning and 37.2MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:31:39,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.64ms. Allocated memory is still 67.1MB. Free memory was 37.2MB in the beginning and 34.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:31:39,712 INFO L158 Benchmark]: Boogie Preprocessor took 57.66ms. Allocated memory is still 67.1MB. Free memory was 34.6MB in the beginning and 32.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:31:39,712 INFO L158 Benchmark]: RCFGBuilder took 1202.34ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 32.5MB in the beginning and 46.7MB in the end (delta: -14.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-16 12:31:39,713 INFO L158 Benchmark]: TraceAbstraction took 17734.88ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 45.9MB in the beginning and 79.6MB in the end (delta: -33.7MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-11-16 12:31:39,713 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 123.7MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:31:39,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 48.0MB in the end (delta: 48.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.85ms. Allocated memory is still 67.1MB. Free memory was 45.8MB in the beginning and 37.2MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.64ms. Allocated memory is still 67.1MB. Free memory was 37.2MB in the beginning and 34.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.66ms. Allocated memory is still 67.1MB. Free memory was 34.6MB in the beginning and 32.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1202.34ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 32.5MB in the beginning and 46.7MB in the end (delta: -14.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 17734.88ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 45.9MB in the beginning and 79.6MB in the end (delta: -33.7MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 123.7MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4s, 137 PlacesBefore, 45 PlacesAfterwards, 129 TransitionsBefore, 36 TransitionsAfterwards, 2524 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 128 TotalNumberOfCompositions, 6961 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3453, independent: 3257, independent conditional: 0, independent unconditional: 3257, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1795, independent: 1730, independent conditional: 0, independent unconditional: 1730, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1795, independent: 1697, independent conditional: 0, independent unconditional: 1697, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 98, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 645, independent: 85, independent conditional: 0, independent unconditional: 85, dependent: 560, dependent conditional: 0, dependent unconditional: 560, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3453, independent: 1527, independent conditional: 0, independent unconditional: 1527, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 1795, unknown conditional: 0, unknown unconditional: 1795] , Statistics on independence cache: Total cache size (in pairs): 231, Positive cache size: 204, Positive conditional cache size: 0, Positive unconditional cache size: 204, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L713] 0 int __unbuffered_p2_EBX = 0; [L731] 0 _Bool a$w_buff1_used; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L717] 0 int a$mem_tmp; [L726] 0 _Bool a$read_delayed; [L715] 0 int a = 0; [L725] 0 _Bool a$r_buff1_thd3; [L711] 0 int __unbuffered_p2_EAX = 0; [L723] 0 _Bool a$r_buff1_thd1; [L728] 0 int a$w_buff0; [L724] 0 _Bool a$r_buff1_thd2; [L730] 0 int a$w_buff1; [L716] 0 _Bool a$flush_delayed; [L722] 0 _Bool a$r_buff1_thd0; [L709] 0 int __unbuffered_cnt = 0; [L727] 0 int *a$read_delayed_var; [L733] 0 _Bool main$tmp_guard1; [L732] 0 _Bool main$tmp_guard0; [L729] 0 _Bool a$w_buff0_used; [L719] 0 _Bool a$r_buff0_thd1; [L718] 0 _Bool a$r_buff0_thd0; [L721] 0 _Bool a$r_buff0_thd3; [L720] 0 _Bool a$r_buff0_thd2; [L735] 0 int x = 0; [L737] 0 int y = 0; [L739] 0 int z = 0; [L841] 0 pthread_t t1193; [L842] FCALL, FORK 0 pthread_create(&t1193, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1193, ((void *)0), P0, ((void *)0))=0, t1193={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L745] 1 a$w_buff1 = a$w_buff0 [L746] 1 a$w_buff0 = 1 [L747] 1 a$w_buff1_used = a$w_buff0_used [L748] 1 a$w_buff0_used = (_Bool)1 [L749] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L749] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L750] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L751] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L752] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L753] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L754] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L757] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L843] 0 pthread_t t1194; [L844] FCALL, FORK 0 pthread_create(&t1194, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1194, ((void *)0), P1, ((void *)0))=1, t1193={3:0}, t1194={7:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L774] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L845] 0 pthread_t t1195; [L777] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L780] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L781] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L782] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L783] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L784] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L787] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L789] 2 return 0; [L846] FCALL, FORK 0 pthread_create(&t1195, ((void *)0), P2, ((void *)0)) VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1195, ((void *)0), P2, ((void *)0))=2, t1193={3:0}, t1194={7:0}, t1195={131075:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L794] 3 y = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0] [L797] 3 z = 1 [L800] 3 __unbuffered_p2_EAX = z VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1] [L803] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L804] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L805] 3 a$flush_delayed = weak$$choice2 [L806] 3 a$mem_tmp = a [L807] 3 a = !a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff1) [L808] 3 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff0)) [L809] 3 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff1 : a$w_buff1)) [L810] 3 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used)) [L811] 3 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L812] 3 a$r_buff0_thd3 = weak$$choice2 ? a$r_buff0_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff0_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3)) [L813] 3 a$r_buff1_thd3 = weak$$choice2 ? a$r_buff1_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff1_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L814] 3 __unbuffered_p2_EBX = a [L815] 3 a = a$flush_delayed ? a$mem_tmp : a [L816] 3 a$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=2, z=1] [L760] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L761] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L762] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L763] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L764] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=2, z=1] [L767] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L769] 1 return 0; [L819] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L820] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L821] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L822] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L823] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=2, z=1] [L826] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L828] 3 return 0; [L848] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L850] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L850] RET 0 assume_abort_if_not(main$tmp_guard0) [L852] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L853] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L854] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L855] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L856] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1193={3:0}, t1194={7:0}, t1195={131075:0}, weak$$choice0=2, weak$$choice2=0, x=2, y=2, z=1] [L859] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L861] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=2, z=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 839]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 842]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 158 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 17.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 712 IncrementalHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 27 mSDtfsCounter, 712 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1288occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 379 SizeOfPredicates, 9 NumberOfNonLiveVariables, 612 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 12:31:39,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca846359-2a2e-41a4-954b-16f97e605661/bin/uautomizer-tPACEb0tL8/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: UNKNOWN: Overapproximated counterexample