./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix006_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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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_d32dd642-7b0b-46a1-8399-7b4171748198/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 932dbff5eab91f48afae7fbaa75574114ec0af0a04ac9352bdcfc8911a65e56a --- 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 11:38:04,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:38:04,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:38:04,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:38:04,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:38:04,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:38:04,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:38:04,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:38:04,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:38:04,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:38:04,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:38:04,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:38:04,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:38:04,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:38:04,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:38:04,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:38:04,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:38:04,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:38:04,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:38:04,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:38:04,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:38:04,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:38:04,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:38:04,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:38:04,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:38:04,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:38:04,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:38:04,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:38:04,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:38:04,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:38:04,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:38:04,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:38:04,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:38:04,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:38:04,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:38:04,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:38:04,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:38:04,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:38:04,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:38:04,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:38:04,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:38:04,961 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 11:38:04,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:38:04,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:38:04,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:38:04,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:38:04,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:38:04,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:38:04,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:38:04,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:38:04,991 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:38:04,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:38:04,992 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:38:04,992 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:38:04,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:38:04,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:38:04,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:38:04,993 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:38:04,994 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:38:04,994 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:38:04,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:38:04,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:38:04,995 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:38:04,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:38:04,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:38:04,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:38:04,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:38:04,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:38:04,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:38:04,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:38:04,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:38:04,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:38:04,997 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_d32dd642-7b0b-46a1-8399-7b4171748198/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 932dbff5eab91f48afae7fbaa75574114ec0af0a04ac9352bdcfc8911a65e56a [2022-11-16 11:38:05,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:38:05,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:38:05,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:38:05,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:38:05,336 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:38:05,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 11:38:05,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/data/90c86210e/72dd95f0bdc249febfaee1f3ac2f83c6/FLAG15d870ad0 [2022-11-16 11:38:06,043 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:38:06,044 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 11:38:06,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/data/90c86210e/72dd95f0bdc249febfaee1f3ac2f83c6/FLAG15d870ad0 [2022-11-16 11:38:06,322 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/data/90c86210e/72dd95f0bdc249febfaee1f3ac2f83c6 [2022-11-16 11:38:06,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:38:06,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:38:06,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:38:06,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:38:06,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:38:06,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:38:06" (1/1) ... [2022-11-16 11:38:06,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52008da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:06, skipping insertion in model container [2022-11-16 11:38:06,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:38:06" (1/1) ... [2022-11-16 11:38:06,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:38:06,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:38:06,677 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_d32dd642-7b0b-46a1-8399-7b4171748198/sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 11:38:06,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:38:07,007 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:38:07,031 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_d32dd642-7b0b-46a1-8399-7b4171748198/sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 11:38:07,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:38:07,120 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:38:07,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07 WrapperNode [2022-11-16 11:38:07,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:38:07,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:38:07,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:38:07,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:38:07,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,229 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 130 [2022-11-16 11:38:07,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:38:07,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:38:07,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:38:07,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:38:07,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:38:07,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:38:07,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:38:07,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:38:07,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (1/1) ... [2022-11-16 11:38:07,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:38:07,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:38:07,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:38:07,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:38:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:38:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:38:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:38:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:38:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:38:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 11:38:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 11:38:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 11:38:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 11:38:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 11:38:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 11:38:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:38:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:38:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:38:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:38:07,445 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 11:38:07,696 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:38:07,698 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:38:08,184 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:38:08,422 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:38:08,422 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:38:08,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:38:08 BoogieIcfgContainer [2022-11-16 11:38:08,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:38:08,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:38:08,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:38:08,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:38:08,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:38:06" (1/3) ... [2022-11-16 11:38:08,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb31e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:38:08, skipping insertion in model container [2022-11-16 11:38:08,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:07" (2/3) ... [2022-11-16 11:38:08,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb31e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:38:08, skipping insertion in model container [2022-11-16 11:38:08,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:38:08" (3/3) ... [2022-11-16 11:38:08,438 INFO L112 eAbstractionObserver]: Analyzing ICFG mix006_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 11:38:08,460 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:38:08,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-16 11:38:08,461 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:38:08,534 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:38:08,577 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 11:38:08,596 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 129 transitions, 273 flow [2022-11-16 11:38:08,599 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 129 transitions, 273 flow [2022-11-16 11:38:08,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 129 transitions, 273 flow [2022-11-16 11:38:08,674 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-11-16 11:38:08,674 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:38:08,680 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 90 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 11:38:08,684 INFO L119 LiptonReduction]: Number of co-enabled transitions 2544 [2022-11-16 11:38:15,533 INFO L134 LiptonReduction]: Checked pairs total: 7336 [2022-11-16 11:38:15,533 INFO L136 LiptonReduction]: Total number of compositions: 126 [2022-11-16 11:38:15,551 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 37 transitions, 89 flow [2022-11-16 11:38:15,698 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1540 states, 1525 states have (on average 3.4072131147540983) internal successors, (5196), 1539 states have internal predecessors, (5196), 0 states have call successors, (0), 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 11:38:15,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:38:15,745 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;@3ab0ff16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:38:15,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-16 11:38:15,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 1540 states, 1525 states have (on average 3.4072131147540983) internal successors, (5196), 1539 states have internal predecessors, (5196), 0 states have call successors, (0), 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 11:38:15,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 11:38:15,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:15,762 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 11:38:15,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 11:38:15,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:15,775 INFO L85 PathProgramCache]: Analyzing trace with hash 553, now seen corresponding path program 1 times [2022-11-16 11:38:15,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:15,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483756438] [2022-11-16 11:38:15,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:15,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:15,920 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 11:38:15,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:15,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483756438] [2022-11-16 11:38:15,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483756438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:15,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:15,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 11:38:15,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059313844] [2022-11-16 11:38:15,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:15,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:38:15,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:15,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:38:15,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:38:15,972 INFO L87 Difference]: Start difference. First operand has 1540 states, 1525 states have (on average 3.4072131147540983) internal successors, (5196), 1539 states have internal predecessors, (5196), 0 states have call successors, (0), 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 11:38:16,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:16,142 INFO L93 Difference]: Finished difference Result 1454 states and 4764 transitions. [2022-11-16 11:38:16,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:38:16,145 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 11:38:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:16,188 INFO L225 Difference]: With dead ends: 1454 [2022-11-16 11:38:16,188 INFO L226 Difference]: Without dead ends: 1454 [2022-11-16 11:38:16,190 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 11:38:16,196 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:16,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:38:16,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-11-16 11:38:16,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1454. [2022-11-16 11:38:16,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1449 states have (on average 3.287784679089027) internal successors, (4764), 1453 states have internal predecessors, (4764), 0 states have call successors, (0), 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 11:38:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 4764 transitions. [2022-11-16 11:38:16,383 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 4764 transitions. Word has length 1 [2022-11-16 11:38:16,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:16,384 INFO L495 AbstractCegarLoop]: Abstraction has 1454 states and 4764 transitions. [2022-11-16 11:38:16,385 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 11:38:16,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 4764 transitions. [2022-11-16 11:38:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:38:16,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:16,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:38:16,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:38:16,387 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 11:38:16,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:16,388 INFO L85 PathProgramCache]: Analyzing trace with hash 546071, now seen corresponding path program 1 times [2022-11-16 11:38:16,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:16,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726842459] [2022-11-16 11:38:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:16,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:16,822 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 11:38:16,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:16,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726842459] [2022-11-16 11:38:16,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726842459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:16,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:16,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:38:16,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145001596] [2022-11-16 11:38:16,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:16,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:16,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:16,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:16,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:16,826 INFO L87 Difference]: Start difference. First operand 1454 states and 4764 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 11:38:16,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:16,966 INFO L93 Difference]: Finished difference Result 1188 states and 3838 transitions. [2022-11-16 11:38:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:16,967 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 11:38:16,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:16,979 INFO L225 Difference]: With dead ends: 1188 [2022-11-16 11:38:16,980 INFO L226 Difference]: Without dead ends: 1152 [2022-11-16 11:38:16,982 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 11:38:16,990 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:16,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:38:16,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-11-16 11:38:17,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2022-11-16 11:38:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1150 states have (on average 3.253913043478261) internal successors, (3742), 1151 states have internal predecessors, (3742), 0 states have call successors, (0), 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 11:38:17,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 3742 transitions. [2022-11-16 11:38:17,067 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 3742 transitions. Word has length 3 [2022-11-16 11:38:17,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:17,068 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 3742 transitions. [2022-11-16 11:38:17,068 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 11:38:17,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 3742 transitions. [2022-11-16 11:38:17,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 11:38:17,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:17,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:17,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:38:17,073 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 11:38:17,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:17,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1529481830, now seen corresponding path program 1 times [2022-11-16 11:38:17,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:17,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428612457] [2022-11-16 11:38:17,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:17,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:17,624 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 11:38:17,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:17,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428612457] [2022-11-16 11:38:17,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428612457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:17,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:17,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:38:17,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590990557] [2022-11-16 11:38:17,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:17,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:38:17,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:17,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:38:17,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:38:17,631 INFO L87 Difference]: Start difference. First operand 1152 states and 3742 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 11:38:17,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:17,962 INFO L93 Difference]: Finished difference Result 2328 states and 7280 transitions. [2022-11-16 11:38:17,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:17,963 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 11:38:17,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:17,984 INFO L225 Difference]: With dead ends: 2328 [2022-11-16 11:38:17,985 INFO L226 Difference]: Without dead ends: 2328 [2022-11-16 11:38:17,986 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 11:38:17,991 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 35 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:17,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 15 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:38:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2022-11-16 11:38:18,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 1648. [2022-11-16 11:38:18,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1646 states have (on average 3.267314702308627) internal successors, (5378), 1647 states have internal predecessors, (5378), 0 states have call successors, (0), 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 11:38:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 5378 transitions. [2022-11-16 11:38:18,092 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 5378 transitions. Word has length 10 [2022-11-16 11:38:18,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:18,093 INFO L495 AbstractCegarLoop]: Abstraction has 1648 states and 5378 transitions. [2022-11-16 11:38:18,093 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 11:38:18,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 5378 transitions. [2022-11-16 11:38:18,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 11:38:18,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:18,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:18,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:38:18,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 11:38:18,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:18,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1529481868, now seen corresponding path program 1 times [2022-11-16 11:38:18,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:18,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287941867] [2022-11-16 11:38:18,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:18,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:18,728 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 11:38:18,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:18,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287941867] [2022-11-16 11:38:18,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287941867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:18,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:18,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:18,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019529483] [2022-11-16 11:38:18,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:18,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:38:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:18,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:38:18,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:18,741 INFO L87 Difference]: Start difference. First operand 1648 states and 5378 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 11:38:18,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:18,924 INFO L93 Difference]: Finished difference Result 1468 states and 4584 transitions. [2022-11-16 11:38:18,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:18,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 11:38:18,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:18,935 INFO L225 Difference]: With dead ends: 1468 [2022-11-16 11:38:18,935 INFO L226 Difference]: Without dead ends: 1207 [2022-11-16 11:38:18,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:18,938 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 28 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:18,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 24 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:38:18,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2022-11-16 11:38:18,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2022-11-16 11:38:18,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1206 states have (on average 3.138474295190713) internal successors, (3785), 1206 states have internal predecessors, (3785), 0 states have call successors, (0), 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 11:38:19,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 3785 transitions. [2022-11-16 11:38:19,002 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 3785 transitions. Word has length 10 [2022-11-16 11:38:19,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:19,004 INFO L495 AbstractCegarLoop]: Abstraction has 1207 states and 3785 transitions. [2022-11-16 11:38:19,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 11:38:19,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 3785 transitions. [2022-11-16 11:38:19,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:38:19,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:19,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:19,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:38:19,009 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 11:38:19,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:19,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1461994736, now seen corresponding path program 1 times [2022-11-16 11:38:19,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:19,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758871340] [2022-11-16 11:38:19,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:19,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:19,286 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 11:38:19,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:19,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758871340] [2022-11-16 11:38:19,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758871340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:19,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:19,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:19,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869723008] [2022-11-16 11:38:19,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:19,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:38:19,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:19,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:38:19,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:19,294 INFO L87 Difference]: Start difference. First operand 1207 states and 3785 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:19,605 INFO L93 Difference]: Finished difference Result 1461 states and 4369 transitions. [2022-11-16 11:38:19,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:38:19,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 11:38:19,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:19,618 INFO L225 Difference]: With dead ends: 1461 [2022-11-16 11:38:19,618 INFO L226 Difference]: Without dead ends: 1251 [2022-11-16 11:38:19,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 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 11:38:19,619 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 56 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:19,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 14 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:38:19,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2022-11-16 11:38:19,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 987. [2022-11-16 11:38:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 986 states have (on average 3.112576064908722) internal successors, (3069), 986 states have internal predecessors, (3069), 0 states have call successors, (0), 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 11:38:19,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 3069 transitions. [2022-11-16 11:38:19,671 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 3069 transitions. Word has length 11 [2022-11-16 11:38:19,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:19,671 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 3069 transitions. [2022-11-16 11:38:19,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:19,672 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 3069 transitions. [2022-11-16 11:38:19,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 11:38:19,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:19,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:19,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:38:19,675 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 11:38:19,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:19,675 INFO L85 PathProgramCache]: Analyzing trace with hash 952523278, now seen corresponding path program 1 times [2022-11-16 11:38:19,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:19,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381936862] [2022-11-16 11:38:19,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:19,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:19,852 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 11:38:19,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:19,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381936862] [2022-11-16 11:38:19,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381936862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:19,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:19,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:38:19,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588180181] [2022-11-16 11:38:19,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:19,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:38:19,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:19,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:38:19,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:38:19,855 INFO L87 Difference]: Start difference. First operand 987 states and 3069 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 11:38:20,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:20,030 INFO L93 Difference]: Finished difference Result 1027 states and 3111 transitions. [2022-11-16 11:38:20,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:20,031 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 11:38:20,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:20,038 INFO L225 Difference]: With dead ends: 1027 [2022-11-16 11:38:20,038 INFO L226 Difference]: Without dead ends: 907 [2022-11-16 11:38:20,039 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 11:38:20,040 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 28 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:20,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 16 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:38:20,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-11-16 11:38:20,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 835. [2022-11-16 11:38:20,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 834 states have (on average 3.0731414868105515) internal successors, (2563), 834 states have internal predecessors, (2563), 0 states have call successors, (0), 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 11:38:20,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 2563 transitions. [2022-11-16 11:38:20,080 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 2563 transitions. Word has length 12 [2022-11-16 11:38:20,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:20,080 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 2563 transitions. [2022-11-16 11:38:20,081 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 11:38:20,081 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 2563 transitions. [2022-11-16 11:38:20,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 11:38:20,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:20,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:20,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:38:20,084 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 11:38:20,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:20,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1595426327, now seen corresponding path program 1 times [2022-11-16 11:38:20,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:20,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863914491] [2022-11-16 11:38:20,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:20,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:20,290 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 11:38:20,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:20,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863914491] [2022-11-16 11:38:20,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863914491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:20,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:20,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:20,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625142954] [2022-11-16 11:38:20,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:20,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:38:20,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:20,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:38:20,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:38:20,293 INFO L87 Difference]: Start difference. First operand 835 states and 2563 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:20,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:20,458 INFO L93 Difference]: Finished difference Result 744 states and 1998 transitions. [2022-11-16 11:38:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:20,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-16 11:38:20,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:20,463 INFO L225 Difference]: With dead ends: 744 [2022-11-16 11:38:20,463 INFO L226 Difference]: Without dead ends: 543 [2022-11-16 11:38:20,463 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 11:38:20,464 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 38 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:20,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 20 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:38:20,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-11-16 11:38:20,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2022-11-16 11:38:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 2.588560885608856) internal successors, (1403), 542 states have internal predecessors, (1403), 0 states have call successors, (0), 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 11:38:20,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 1403 transitions. [2022-11-16 11:38:20,486 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 1403 transitions. Word has length 14 [2022-11-16 11:38:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:20,486 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 1403 transitions. [2022-11-16 11:38:20,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:20,487 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 1403 transitions. [2022-11-16 11:38:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 11:38:20,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:20,489 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 11:38:20,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:38:20,490 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 11:38:20,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:20,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1046048494, now seen corresponding path program 1 times [2022-11-16 11:38:20,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:20,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115106105] [2022-11-16 11:38:20,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:20,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:20,700 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 11:38:20,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:20,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115106105] [2022-11-16 11:38:20,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115106105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:20,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:20,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:38:20,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426906084] [2022-11-16 11:38:20,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:20,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:38:20,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:20,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:38:20,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:20,704 INFO L87 Difference]: Start difference. First operand 543 states and 1403 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 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 11:38:20,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:20,902 INFO L93 Difference]: Finished difference Result 420 states and 1002 transitions. [2022-11-16 11:38:20,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:38:20,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 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 11:38:20,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:20,905 INFO L225 Difference]: With dead ends: 420 [2022-11-16 11:38:20,905 INFO L226 Difference]: Without dead ends: 329 [2022-11-16 11:38:20,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:38:20,906 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 65 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:20,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 27 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:38:20,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-11-16 11:38:20,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 326. [2022-11-16 11:38:20,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 2.3415384615384616) internal successors, (761), 325 states have internal predecessors, (761), 0 states have call successors, (0), 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 11:38:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 761 transitions. [2022-11-16 11:38:20,919 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 761 transitions. Word has length 17 [2022-11-16 11:38:20,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:20,920 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 761 transitions. [2022-11-16 11:38:20,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 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 11:38:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 761 transitions. [2022-11-16 11:38:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 11:38:20,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:20,921 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] [2022-11-16 11:38:20,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:38:20,922 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 11:38:20,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:20,923 INFO L85 PathProgramCache]: Analyzing trace with hash -405778886, now seen corresponding path program 1 times [2022-11-16 11:38:20,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:20,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278933283] [2022-11-16 11:38:20,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:20,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:21,325 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 11:38:21,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:21,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278933283] [2022-11-16 11:38:21,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278933283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:21,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:21,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:38:21,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267075009] [2022-11-16 11:38:21,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:21,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:38:21,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:21,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:38:21,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:38:21,335 INFO L87 Difference]: Start difference. First operand 326 states and 761 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 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 11:38:21,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:21,512 INFO L93 Difference]: Finished difference Result 291 states and 690 transitions. [2022-11-16 11:38:21,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:38:21,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2022-11-16 11:38:21,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:21,514 INFO L225 Difference]: With dead ends: 291 [2022-11-16 11:38:21,514 INFO L226 Difference]: Without dead ends: 256 [2022-11-16 11:38:21,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:38:21,515 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 86 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:21,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 21 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:38:21,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-16 11:38:21,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2022-11-16 11:38:21,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 2.413502109704641) internal successors, (572), 237 states have internal predecessors, (572), 0 states have call successors, (0), 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 11:38:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 572 transitions. [2022-11-16 11:38:21,524 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 572 transitions. Word has length 20 [2022-11-16 11:38:21,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:21,525 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 572 transitions. [2022-11-16 11:38:21,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 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 11:38:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 572 transitions. [2022-11-16 11:38:21,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:21,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:21,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:21,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:38:21,527 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 11:38:21,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:21,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1970273679, now seen corresponding path program 1 times [2022-11-16 11:38:21,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:21,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822688732] [2022-11-16 11:38:21,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:21,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:23,748 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 11:38:23,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:23,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822688732] [2022-11-16 11:38:23,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822688732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:23,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:23,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:38:23,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934143299] [2022-11-16 11:38:23,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:23,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:38:23,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:23,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:38:23,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:38:23,750 INFO L87 Difference]: Start difference. First operand 238 states and 572 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:24,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:24,170 INFO L93 Difference]: Finished difference Result 366 states and 835 transitions. [2022-11-16 11:38:24,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:38:24,171 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:38:24,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:24,173 INFO L225 Difference]: With dead ends: 366 [2022-11-16 11:38:24,173 INFO L226 Difference]: Without dead ends: 263 [2022-11-16 11:38:24,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:38:24,174 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:24,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 66 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:38:24,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-11-16 11:38:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 214. [2022-11-16 11:38:24,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 2.2629107981220655) internal successors, (482), 213 states have internal predecessors, (482), 0 states have call successors, (0), 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 11:38:24,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 482 transitions. [2022-11-16 11:38:24,183 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 482 transitions. Word has length 24 [2022-11-16 11:38:24,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:24,184 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 482 transitions. [2022-11-16 11:38:24,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:24,184 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 482 transitions. [2022-11-16 11:38:24,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:24,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:24,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:24,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:38:24,186 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 11:38:24,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:24,187 INFO L85 PathProgramCache]: Analyzing trace with hash 353608655, now seen corresponding path program 2 times [2022-11-16 11:38:24,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:24,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146667211] [2022-11-16 11:38:24,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:24,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:38:24,271 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:38:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:38:24,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:38:24,419 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:38:24,420 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-16 11:38:24,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-16 11:38:24,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-16 11:38:24,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-16 11:38:24,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-16 11:38:24,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-16 11:38:24,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-16 11:38:24,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-16 11:38:24,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-16 11:38:24,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-16 11:38:24,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-16 11:38:24,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-16 11:38:24,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-16 11:38:24,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:38:24,431 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:24,438 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:38:24,438 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:38:24,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:38:24 BasicIcfg [2022-11-16 11:38:24,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:38:24,567 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:38:24,567 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:38:24,567 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:38:24,568 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:38:08" (3/4) ... [2022-11-16 11:38:24,571 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:38:24,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:38:24,573 INFO L158 Benchmark]: Toolchain (without parser) took 18242.21ms. Allocated memory was 130.0MB in the beginning and 272.6MB in the end (delta: 142.6MB). Free memory was 84.9MB in the beginning and 200.5MB in the end (delta: -115.6MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-11-16 11:38:24,573 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 130.0MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:38:24,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 787.93ms. Allocated memory is still 130.0MB. Free memory was 84.7MB in the beginning and 89.1MB in the end (delta: -4.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:38:24,574 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.42ms. Allocated memory is still 130.0MB. Free memory was 89.1MB in the beginning and 86.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:38:24,574 INFO L158 Benchmark]: Boogie Preprocessor took 83.46ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 85.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:38:24,575 INFO L158 Benchmark]: RCFGBuilder took 1110.93ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 84.5MB in the beginning and 130.0MB in the end (delta: -45.6MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2022-11-16 11:38:24,575 INFO L158 Benchmark]: TraceAbstraction took 16137.33ms. Allocated memory was 157.3MB in the beginning and 272.6MB in the end (delta: 115.3MB). Free memory was 129.0MB in the beginning and 200.5MB in the end (delta: -71.5MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2022-11-16 11:38:24,576 INFO L158 Benchmark]: Witness Printer took 5.36ms. Allocated memory is still 272.6MB. Free memory is still 200.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:38:24,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 130.0MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 787.93ms. Allocated memory is still 130.0MB. Free memory was 84.7MB in the beginning and 89.1MB in the end (delta: -4.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.42ms. Allocated memory is still 130.0MB. Free memory was 89.1MB in the beginning and 86.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.46ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 85.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1110.93ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 84.5MB in the beginning and 130.0MB in the end (delta: -45.6MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. * TraceAbstraction took 16137.33ms. Allocated memory was 157.3MB in the beginning and 272.6MB in the end (delta: 115.3MB). Free memory was 129.0MB in the beginning and 200.5MB in the end (delta: -71.5MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Witness Printer took 5.36ms. Allocated memory is still 272.6MB. Free memory is still 200.5MB. 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: 6.9s, 137 PlacesBefore, 46 PlacesAfterwards, 129 TransitionsBefore, 37 TransitionsAfterwards, 2544 CoEnabledTransitionPairs, 7 FixpointIterations, 52 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 126 TotalNumberOfCompositions, 7336 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3962, independent: 3762, independent conditional: 0, independent unconditional: 3762, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1860, independent: 1808, independent conditional: 0, independent unconditional: 1808, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1860, independent: 1780, independent conditional: 0, independent unconditional: 1780, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 598, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 553, dependent conditional: 0, dependent unconditional: 553, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3962, independent: 1954, independent conditional: 0, independent unconditional: 1954, dependent: 148, dependent conditional: 0, dependent unconditional: 148, unknown: 1860, unknown conditional: 0, unknown unconditional: 1860] , Statistics on independence cache: Total cache size (in pairs): 262, Positive cache size: 237, Positive conditional cache size: 0, Positive unconditional cache size: 237, 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: [L717] 0 int __unbuffered_p2_EBX = 0; [L734] 0 _Bool z$r_buff1_thd2; [L735] 0 _Bool z$r_buff1_thd3; [L732] 0 _Bool z$r_buff1_thd0; [L733] 0 _Bool z$r_buff1_thd1; [L742] 0 _Bool weak$$choice0; [L740] 0 int z$w_buff1; [L743] 0 _Bool weak$$choice2; [L726] 0 _Bool z$flush_delayed; [L738] 0 int z$w_buff0; [L729] 0 _Bool z$r_buff0_thd1; [L730] 0 _Bool z$r_buff0_thd2; [L711] 0 int __unbuffered_p1_EAX = 0; [L728] 0 _Bool z$r_buff0_thd0; [L731] 0 _Bool z$r_buff0_thd3; [L727] 0 int z$mem_tmp; [L736] 0 _Bool z$read_delayed; [L715] 0 int __unbuffered_p2_EAX = 0; [L737] 0 int *z$read_delayed_var; [L741] 0 _Bool z$w_buff1_used; [L709] 0 int __unbuffered_cnt = 0; [L719] 0 _Bool main$tmp_guard1; [L718] 0 _Bool main$tmp_guard0; [L713] 0 int __unbuffered_p1_EBX = 0; [L739] 0 _Bool z$w_buff0_used; [L721] 0 int x = 0; [L723] 0 int y = 0; [L725] 0 int z = 0; [L843] 0 pthread_t t153; [L844] FCALL, FORK 0 pthread_create(&t153, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t153, ((void *)0), P0, ((void *)0))=-2, t153={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L845] 0 pthread_t t154; [L747] 1 z$w_buff1 = z$w_buff0 [L748] 1 z$w_buff0 = 1 [L749] 1 z$w_buff1_used = z$w_buff0_used [L750] 1 z$w_buff0_used = (_Bool)1 [L751] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L751] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L752] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L753] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L754] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L755] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L756] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L759] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=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, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L846] FCALL, FORK 0 pthread_create(&t154, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t154, ((void *)0), P1, ((void *)0))=-1, t153={5:0}, t154={6:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=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, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=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, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L847] 0 pthread_t t155; [L782] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=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, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L786] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L787] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L788] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L789] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=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, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L794] 2 return 0; [L848] FCALL, FORK 0 pthread_create(&t155, ((void *)0), P2, ((void *)0)) VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t155, ((void *)0), P2, ((void *)0))=0, t153={5:0}, t154={6:0}, t155={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L799] 3 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=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=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L802] 3 __unbuffered_p2_EAX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=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=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L805] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L806] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L807] 3 z$flush_delayed = weak$$choice2 [L808] 3 z$mem_tmp = z [L809] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L810] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L811] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L812] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L813] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L814] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L815] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L816] 3 __unbuffered_p2_EBX = z [L817] 3 z = z$flush_delayed ? z$mem_tmp : z [L818] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L822] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L823] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L824] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L825] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L762] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L763] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L764] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L765] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L766] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L769] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 1 return 0; [L828] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L830] 3 return 0; [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L852] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L852] RET 0 assume_abort_if_not(main$tmp_guard0) [L854] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L855] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L856] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L857] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L858] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t153={5:0}, t154={6:0}, t155={3:0}, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L861] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L863] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - 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: 841]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 848]: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 158 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 15.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 393 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 393 mSDsluCounter, 215 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 139 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 984 IncrementalHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 76 mSDtfsCounter, 984 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1648occurred in iteration=3, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1086 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 1404 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 11:38:24,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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_d32dd642-7b0b-46a1-8399-7b4171748198/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 932dbff5eab91f48afae7fbaa75574114ec0af0a04ac9352bdcfc8911a65e56a --- 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 11:38:27,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:38:27,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:38:27,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:38:27,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:38:27,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:38:27,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:38:27,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:38:27,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:38:27,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:38:27,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:38:27,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:38:27,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:38:27,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:38:27,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:38:27,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:38:27,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:38:27,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:38:27,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:38:27,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:38:27,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:38:27,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:38:27,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:38:27,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:38:27,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:38:27,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:38:27,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:38:27,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:38:27,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:38:27,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:38:27,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:38:27,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:38:27,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:38:27,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:38:27,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:38:27,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:38:27,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:38:27,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:38:27,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:38:27,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:38:27,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:38:27,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-16 11:38:27,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:38:27,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:38:27,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:38:27,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:38:27,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:38:27,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:38:27,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:38:27,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:38:27,485 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:38:27,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:38:27,486 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:38:27,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:38:27,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:38:27,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:38:27,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:38:27,488 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:38:27,489 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:38:27,489 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:38:27,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:38:27,490 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:38:27,491 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:38:27,491 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:38:27,491 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:38:27,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:38:27,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:38:27,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:38:27,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:38:27,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:38:27,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:38:27,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:38:27,495 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:38:27,495 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:38:27,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:38:27,496 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_d32dd642-7b0b-46a1-8399-7b4171748198/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_d32dd642-7b0b-46a1-8399-7b4171748198/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 -> 932dbff5eab91f48afae7fbaa75574114ec0af0a04ac9352bdcfc8911a65e56a [2022-11-16 11:38:27,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:38:28,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:38:28,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:38:28,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:38:28,031 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:38:28,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 11:38:28,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/data/b0c4cbf8d/2a14e4ccbe4d4301b18fa4116856627b/FLAG61b84bda8 [2022-11-16 11:38:28,887 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:38:28,888 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 11:38:28,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/data/b0c4cbf8d/2a14e4ccbe4d4301b18fa4116856627b/FLAG61b84bda8 [2022-11-16 11:38:29,095 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/data/b0c4cbf8d/2a14e4ccbe4d4301b18fa4116856627b [2022-11-16 11:38:29,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:38:29,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:38:29,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:38:29,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:38:29,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:38:29,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:38:29" (1/1) ... [2022-11-16 11:38:29,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41aae309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:29, skipping insertion in model container [2022-11-16 11:38:29,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:38:29" (1/1) ... [2022-11-16 11:38:29,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:38:29,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:38:29,406 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_d32dd642-7b0b-46a1-8399-7b4171748198/sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 11:38:29,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:38:29,871 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:38:29,891 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_d32dd642-7b0b-46a1-8399-7b4171748198/sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 11:38:29,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:38:30,039 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:38:30,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30 WrapperNode [2022-11-16 11:38:30,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:38:30,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:38:30,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:38:30,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:38:30,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,155 INFO L138 Inliner]: procedures = 179, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 131 [2022-11-16 11:38:30,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:38:30,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:38:30,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:38:30,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:38:30,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,223 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:38:30,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:38:30,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:38:30,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:38:30,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (1/1) ... [2022-11-16 11:38:30,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:38:30,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:38:30,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:38:30,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:38:30,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:38:30,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:38:30,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:38:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:38:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 11:38:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 11:38:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 11:38:30,346 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 11:38:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 11:38:30,346 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 11:38:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 11:38:30,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 11:38:30,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:38:30,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:38:30,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:38:30,349 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 11:38:30,606 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:38:30,608 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:38:31,152 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:38:31,451 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:38:31,452 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:38:31,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:38:31 BoogieIcfgContainer [2022-11-16 11:38:31,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:38:31,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:38:31,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:38:31,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:38:31,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:38:29" (1/3) ... [2022-11-16 11:38:31,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b908281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:38:31, skipping insertion in model container [2022-11-16 11:38:31,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:38:30" (2/3) ... [2022-11-16 11:38:31,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b908281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:38:31, skipping insertion in model container [2022-11-16 11:38:31,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:38:31" (3/3) ... [2022-11-16 11:38:31,473 INFO L112 eAbstractionObserver]: Analyzing ICFG mix006_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 11:38:31,498 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:38:31,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-16 11:38:31,499 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:38:31,636 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:38:31,706 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 11:38:31,730 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 130 transitions, 275 flow [2022-11-16 11:38:31,736 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 130 transitions, 275 flow [2022-11-16 11:38:31,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 130 transitions, 275 flow [2022-11-16 11:38:31,839 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-11-16 11:38:31,842 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:38:31,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 127 events. 2/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-11-16 11:38:31,854 INFO L119 LiptonReduction]: Number of co-enabled transitions 2544 [2022-11-16 11:38:43,210 INFO L134 LiptonReduction]: Checked pairs total: 6895 [2022-11-16 11:38:43,211 INFO L136 LiptonReduction]: Total number of compositions: 125 [2022-11-16 11:38:43,222 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 37 transitions, 89 flow [2022-11-16 11:38:43,357 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1540 states, 1525 states have (on average 3.4072131147540983) internal successors, (5196), 1539 states have internal predecessors, (5196), 0 states have call successors, (0), 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 11:38:43,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:38:43,389 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;@6d3d4a1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:38:43,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-16 11:38:43,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 1540 states, 1525 states have (on average 3.4072131147540983) internal successors, (5196), 1539 states have internal predecessors, (5196), 0 states have call successors, (0), 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 11:38:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 11:38:43,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:43,405 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 11:38:43,406 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 11:38:43,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:43,412 INFO L85 PathProgramCache]: Analyzing trace with hash 555, now seen corresponding path program 1 times [2022-11-16 11:38:43,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:43,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033796103] [2022-11-16 11:38:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:43,429 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 11:38:43,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:43,439 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:43,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:43,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 11:38:43,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:43,567 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 11:38:43,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:43,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:43,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033796103] [2022-11-16 11:38:43,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033796103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:43,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:43,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 11:38:43,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100036082] [2022-11-16 11:38:43,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:43,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:38:43,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:43,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:38:43,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:38:43,636 INFO L87 Difference]: Start difference. First operand has 1540 states, 1525 states have (on average 3.4072131147540983) internal successors, (5196), 1539 states have internal predecessors, (5196), 0 states have call successors, (0), 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 11:38:43,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:43,984 INFO L93 Difference]: Finished difference Result 1454 states and 4764 transitions. [2022-11-16 11:38:44,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:38:44,002 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 11:38:44,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:44,055 INFO L225 Difference]: With dead ends: 1454 [2022-11-16 11:38:44,055 INFO L226 Difference]: Without dead ends: 1454 [2022-11-16 11:38:44,056 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 11:38:44,061 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:44,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:38:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-11-16 11:38:44,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1454. [2022-11-16 11:38:44,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1449 states have (on average 3.287784679089027) internal successors, (4764), 1453 states have internal predecessors, (4764), 0 states have call successors, (0), 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 11:38:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 4764 transitions. [2022-11-16 11:38:44,287 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 4764 transitions. Word has length 1 [2022-11-16 11:38:44,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:44,288 INFO L495 AbstractCegarLoop]: Abstraction has 1454 states and 4764 transitions. [2022-11-16 11:38:44,289 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 11:38:44,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 4764 transitions. [2022-11-16 11:38:44,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:38:44,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:44,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:38:44,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:44,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:44,504 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 11:38:44,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:44,505 INFO L85 PathProgramCache]: Analyzing trace with hash 545173, now seen corresponding path program 1 times [2022-11-16 11:38:44,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:44,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198135570] [2022-11-16 11:38:44,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:44,506 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 11:38:44,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:44,512 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:44,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:44,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:38:44,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:44,674 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 11:38:44,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:44,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:44,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198135570] [2022-11-16 11:38:44,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198135570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:44,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:44,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:38:44,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935116685] [2022-11-16 11:38:44,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:44,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:38:44,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:44,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:38:44,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:38:44,679 INFO L87 Difference]: Start difference. First operand 1454 states and 4764 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 11:38:44,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:44,849 INFO L93 Difference]: Finished difference Result 1188 states and 3838 transitions. [2022-11-16 11:38:44,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:38:44,851 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 11:38:44,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:44,861 INFO L225 Difference]: With dead ends: 1188 [2022-11-16 11:38:44,861 INFO L226 Difference]: Without dead ends: 1152 [2022-11-16 11:38:44,862 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 11:38:44,865 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:44,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:38:44,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-11-16 11:38:44,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2022-11-16 11:38:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1150 states have (on average 3.253913043478261) internal successors, (3742), 1151 states have internal predecessors, (3742), 0 states have call successors, (0), 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 11:38:44,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 3742 transitions. [2022-11-16 11:38:44,938 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 3742 transitions. Word has length 3 [2022-11-16 11:38:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:44,938 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 3742 transitions. [2022-11-16 11:38:44,938 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 11:38:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 3742 transitions. [2022-11-16 11:38:44,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 11:38:44,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:44,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:44,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:45,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:45,163 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 11:38:45,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:45,163 INFO L85 PathProgramCache]: Analyzing trace with hash 107577637, now seen corresponding path program 1 times [2022-11-16 11:38:45,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:45,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627308742] [2022-11-16 11:38:45,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:45,165 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 11:38:45,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:45,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:45,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:45,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:38:45,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:45,395 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 11:38:45,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:45,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:45,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627308742] [2022-11-16 11:38:45,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627308742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:45,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:45,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:45,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542995416] [2022-11-16 11:38:45,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:45,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:38:45,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:45,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:38:45,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:38:45,399 INFO L87 Difference]: Start difference. First operand 1152 states and 3742 transitions. Second operand has 4 states, 4 states have (on average 2.5) 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 11:38:45,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:45,668 INFO L93 Difference]: Finished difference Result 832 states and 2286 transitions. [2022-11-16 11:38:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:45,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) 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 11:38:45,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:45,674 INFO L225 Difference]: With dead ends: 832 [2022-11-16 11:38:45,674 INFO L226 Difference]: Without dead ends: 652 [2022-11-16 11:38:45,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 11:38:45,676 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 40 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:45,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 20 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:38:45,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-11-16 11:38:45,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2022-11-16 11:38:45,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 650 states have (on average 2.68) internal successors, (1742), 651 states have internal predecessors, (1742), 0 states have call successors, (0), 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 11:38:45,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1742 transitions. [2022-11-16 11:38:45,709 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1742 transitions. Word has length 10 [2022-11-16 11:38:45,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:45,710 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 1742 transitions. [2022-11-16 11:38:45,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) 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 11:38:45,711 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1742 transitions. [2022-11-16 11:38:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 11:38:45,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:45,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:45,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:45,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:45,940 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 11:38:45,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:45,941 INFO L85 PathProgramCache]: Analyzing trace with hash 439783962, now seen corresponding path program 1 times [2022-11-16 11:38:45,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:45,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034975230] [2022-11-16 11:38:45,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:45,943 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 11:38:45,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:45,945 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:45,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:46,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:38:46,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:46,201 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 11:38:46,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:46,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:46,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034975230] [2022-11-16 11:38:46,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034975230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:46,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:46,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:38:46,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327232777] [2022-11-16 11:38:46,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:46,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:38:46,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:46,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:38:46,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:46,207 INFO L87 Difference]: Start difference. First operand 652 states and 1742 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:46,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:46,540 INFO L93 Difference]: Finished difference Result 407 states and 976 transitions. [2022-11-16 11:38:46,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:38:46,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-16 11:38:46,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:46,544 INFO L225 Difference]: With dead ends: 407 [2022-11-16 11:38:46,544 INFO L226 Difference]: Without dead ends: 327 [2022-11-16 11:38:46,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:38:46,545 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 52 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:46,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 36 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:38:46,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-16 11:38:46,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2022-11-16 11:38:46,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 325 states have (on average 2.36) internal successors, (767), 326 states have internal predecessors, (767), 0 states have call successors, (0), 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 11:38:46,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 767 transitions. [2022-11-16 11:38:46,565 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 767 transitions. Word has length 14 [2022-11-16 11:38:46,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:46,567 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 767 transitions. [2022-11-16 11:38:46,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:46,576 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 767 transitions. [2022-11-16 11:38:46,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 11:38:46,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:46,579 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 11:38:46,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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)] Ended with exit code 0 [2022-11-16 11:38:46,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:46,794 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 11:38:46,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:46,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1117426638, now seen corresponding path program 1 times [2022-11-16 11:38:46,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:46,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051582948] [2022-11-16 11:38:46,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:46,796 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 11:38:46,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:46,798 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:46,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:46,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:38:46,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:47,062 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 11:38:47,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:47,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:47,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051582948] [2022-11-16 11:38:47,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051582948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:47,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:47,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:38:47,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143439117] [2022-11-16 11:38:47,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:47,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:38:47,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:47,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:38:47,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:38:47,066 INFO L87 Difference]: Start difference. First operand 327 states and 767 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 11:38:47,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:47,458 INFO L93 Difference]: Finished difference Result 272 states and 655 transitions. [2022-11-16 11:38:47,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:38:47,459 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 11:38:47,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:47,460 INFO L225 Difference]: With dead ends: 272 [2022-11-16 11:38:47,461 INFO L226 Difference]: Without dead ends: 257 [2022-11-16 11:38:47,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 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 11:38:47,462 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 47 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:47,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 60 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:38:47,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-11-16 11:38:47,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-11-16 11:38:47,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 255 states have (on average 2.458823529411765) internal successors, (627), 256 states have internal predecessors, (627), 0 states have call successors, (0), 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 11:38:47,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 627 transitions. [2022-11-16 11:38:47,474 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 627 transitions. Word has length 19 [2022-11-16 11:38:47,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:47,474 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 627 transitions. [2022-11-16 11:38:47,475 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 11:38:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 627 transitions. [2022-11-16 11:38:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:47,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:47,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:47,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:47,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:47,691 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 11:38:47,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:47,691 INFO L85 PathProgramCache]: Analyzing trace with hash 43433546, now seen corresponding path program 1 times [2022-11-16 11:38:47,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:47,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668221725] [2022-11-16 11:38:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:47,692 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 11:38:47,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:47,697 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:47,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:47,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 11:38:47,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:48,215 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 11:38:48,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:48,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:48,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668221725] [2022-11-16 11:38:48,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668221725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:48,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:48,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:38:48,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251280396] [2022-11-16 11:38:48,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:48,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:38:48,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:48,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:38:48,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:38:48,220 INFO L87 Difference]: Start difference. First operand 257 states and 627 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:48,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:48,664 INFO L93 Difference]: Finished difference Result 375 states and 863 transitions. [2022-11-16 11:38:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:38:48,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:38:48,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:48,668 INFO L225 Difference]: With dead ends: 375 [2022-11-16 11:38:48,668 INFO L226 Difference]: Without dead ends: 375 [2022-11-16 11:38:48,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:38:48,669 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 51 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:48,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 50 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:38:48,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-11-16 11:38:48,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 336. [2022-11-16 11:38:48,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 334 states have (on average 2.374251497005988) internal successors, (793), 335 states have internal predecessors, (793), 0 states have call successors, (0), 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 11:38:48,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 793 transitions. [2022-11-16 11:38:48,688 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 793 transitions. Word has length 24 [2022-11-16 11:38:48,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:48,689 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 793 transitions. [2022-11-16 11:38:48,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:48,689 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 793 transitions. [2022-11-16 11:38:48,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:48,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:48,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:48,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:48,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:48,907 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 11:38:48,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:48,908 INFO L85 PathProgramCache]: Analyzing trace with hash 43433584, now seen corresponding path program 1 times [2022-11-16 11:38:48,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:48,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441580812] [2022-11-16 11:38:48,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:48,909 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 11:38:48,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:48,910 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:48,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:49,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 11:38:49,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:49,640 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 11:38:49,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:49,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:49,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441580812] [2022-11-16 11:38:49,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441580812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:49,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:49,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:49,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734306668] [2022-11-16 11:38:49,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:49,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:38:49,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:49,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:38:49,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:49,643 INFO L87 Difference]: Start difference. First operand 336 states and 793 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:49,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:49,740 INFO L93 Difference]: Finished difference Result 589 states and 1395 transitions. [2022-11-16 11:38:49,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:49,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:38:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:49,745 INFO L225 Difference]: With dead ends: 589 [2022-11-16 11:38:49,745 INFO L226 Difference]: Without dead ends: 561 [2022-11-16 11:38:49,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:49,746 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:49,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 35 Unchecked, 0.1s Time] [2022-11-16 11:38:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-11-16 11:38:49,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 363. [2022-11-16 11:38:49,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 361 states have (on average 2.3047091412742384) internal successors, (832), 362 states have internal predecessors, (832), 0 states have call successors, (0), 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 11:38:49,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 832 transitions. [2022-11-16 11:38:49,764 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 832 transitions. Word has length 24 [2022-11-16 11:38:49,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:49,764 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 832 transitions. [2022-11-16 11:38:49,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 11:38:49,765 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 832 transitions. [2022-11-16 11:38:49,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:49,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:49,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:49,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:49,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:49,981 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 11:38:49,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:49,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1703123244, now seen corresponding path program 2 times [2022-11-16 11:38:49,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:49,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890101584] [2022-11-16 11:38:49,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:38:49,983 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 11:38:49,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:49,984 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:50,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (9)] Waiting until timeout for monitored process [2022-11-16 11:38:50,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:38:50,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:38:50,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:38:50,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:50,233 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 11:38:50,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:50,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:50,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890101584] [2022-11-16 11:38:50,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890101584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:50,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:50,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:38:50,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034539915] [2022-11-16 11:38:50,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:50,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:38:50,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:50,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:38:50,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:50,236 INFO L87 Difference]: Start difference. First operand 363 states and 832 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:50,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:50,469 INFO L93 Difference]: Finished difference Result 494 states and 1098 transitions. [2022-11-16 11:38:50,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:50,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:38:50,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:50,473 INFO L225 Difference]: With dead ends: 494 [2022-11-16 11:38:50,473 INFO L226 Difference]: Without dead ends: 475 [2022-11-16 11:38:50,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:38:50,474 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 30 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:50,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 18 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:38:50,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-11-16 11:38:50,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 390. [2022-11-16 11:38:50,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 388 states have (on average 2.3350515463917527) internal successors, (906), 389 states have internal predecessors, (906), 0 states have call successors, (0), 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 11:38:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 906 transitions. [2022-11-16 11:38:50,493 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 906 transitions. Word has length 24 [2022-11-16 11:38:50,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:50,493 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 906 transitions. [2022-11-16 11:38:50,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:50,494 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 906 transitions. [2022-11-16 11:38:50,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:50,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:50,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:50,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:38:50,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:50,711 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 11:38:50,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:50,711 INFO L85 PathProgramCache]: Analyzing trace with hash 78404820, now seen corresponding path program 3 times [2022-11-16 11:38:50,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:50,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034006889] [2022-11-16 11:38:50,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:38:50,712 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 11:38:50,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:50,713 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:50,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (10)] Waiting until timeout for monitored process [2022-11-16 11:38:50,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 11:38:50,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:38:50,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 11:38:50,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:51,309 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 11:38:51,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:51,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:51,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034006889] [2022-11-16 11:38:51,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034006889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:51,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:51,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:38:51,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110977124] [2022-11-16 11:38:51,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:51,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:38:51,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:51,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:38:51,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:38:51,311 INFO L87 Difference]: Start difference. First operand 390 states and 906 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:51,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:51,806 INFO L93 Difference]: Finished difference Result 445 states and 1005 transitions. [2022-11-16 11:38:51,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:38:51,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:38:51,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:51,809 INFO L225 Difference]: With dead ends: 445 [2022-11-16 11:38:51,809 INFO L226 Difference]: Without dead ends: 415 [2022-11-16 11:38:51,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:38:51,810 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 55 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:51,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 56 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:38:51,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-16 11:38:51,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 318. [2022-11-16 11:38:51,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 316 states have (on average 2.4050632911392404) internal successors, (760), 317 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:51,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 760 transitions. [2022-11-16 11:38:51,827 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 760 transitions. Word has length 24 [2022-11-16 11:38:51,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:51,828 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 760 transitions. [2022-11-16 11:38:51,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:51,828 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 760 transitions. [2022-11-16 11:38:51,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:51,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:51,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:51,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:38:52,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:52,046 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 11:38:52,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:52,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1260322458, now seen corresponding path program 2 times [2022-11-16 11:38:52,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:52,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351863754] [2022-11-16 11:38:52,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:38:52,048 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 11:38:52,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:52,049 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:52,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (11)] Waiting until timeout for monitored process [2022-11-16 11:38:52,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:38:52,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:38:52,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 11:38:52,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:52,688 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 11:38:52,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:52,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:52,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351863754] [2022-11-16 11:38:52,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351863754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:52,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:52,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:52,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609131900] [2022-11-16 11:38:52,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:52,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:38:52,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:52,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:38:52,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:52,691 INFO L87 Difference]: Start difference. First operand 318 states and 760 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:52,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:52,813 INFO L93 Difference]: Finished difference Result 519 states and 1247 transitions. [2022-11-16 11:38:52,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:52,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:38:52,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:52,817 INFO L225 Difference]: With dead ends: 519 [2022-11-16 11:38:52,817 INFO L226 Difference]: Without dead ends: 471 [2022-11-16 11:38:52,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:52,818 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:52,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 25 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 32 Unchecked, 0.1s Time] [2022-11-16 11:38:52,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-11-16 11:38:52,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 315. [2022-11-16 11:38:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 313 states have (on average 2.4089456869009584) internal successors, (754), 314 states have internal predecessors, (754), 0 states have call successors, (0), 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 11:38:52,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 754 transitions. [2022-11-16 11:38:52,833 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 754 transitions. Word has length 24 [2022-11-16 11:38:52,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:52,833 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 754 transitions. [2022-11-16 11:38:52,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 11:38:52,834 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 754 transitions. [2022-11-16 11:38:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:52,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:52,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:52,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:38:53,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:53,051 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 11:38:53,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:53,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1043636458, now seen corresponding path program 3 times [2022-11-16 11:38:53,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:53,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424494191] [2022-11-16 11:38:53,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:38:53,052 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 11:38:53,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:53,054 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:53,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (12)] Waiting until timeout for monitored process [2022-11-16 11:38:53,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 11:38:53,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:38:53,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 11:38:53,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:53,685 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 11:38:53,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:53,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:53,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424494191] [2022-11-16 11:38:53,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424494191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:53,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:53,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:53,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717662904] [2022-11-16 11:38:53,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:53,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:38:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:53,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:38:53,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:53,687 INFO L87 Difference]: Start difference. First operand 315 states and 754 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:53,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:53,786 INFO L93 Difference]: Finished difference Result 566 states and 1371 transitions. [2022-11-16 11:38:53,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:38:53,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:53,790 INFO L225 Difference]: With dead ends: 566 [2022-11-16 11:38:53,790 INFO L226 Difference]: Without dead ends: 488 [2022-11-16 11:38:53,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:53,791 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:53,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 25 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 29 Unchecked, 0.1s Time] [2022-11-16 11:38:53,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-16 11:38:53,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 310. [2022-11-16 11:38:53,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 308 states have (on average 2.3993506493506493) internal successors, (739), 309 states have internal predecessors, (739), 0 states have call successors, (0), 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 11:38:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 739 transitions. [2022-11-16 11:38:53,805 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 739 transitions. Word has length 24 [2022-11-16 11:38:53,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:53,806 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 739 transitions. [2022-11-16 11:38:53,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 11:38:53,806 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 739 transitions. [2022-11-16 11:38:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:53,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:53,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:53,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:38:54,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:54,029 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 11:38:54,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:54,030 INFO L85 PathProgramCache]: Analyzing trace with hash 112485888, now seen corresponding path program 4 times [2022-11-16 11:38:54,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:54,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464937600] [2022-11-16 11:38:54,030 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:38:54,030 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 11:38:54,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:54,033 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:54,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (13)] Waiting until timeout for monitored process [2022-11-16 11:38:54,259 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:38:54,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:38:54,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 11:38:54,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:54,704 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 11:38:54,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:54,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:54,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464937600] [2022-11-16 11:38:54,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464937600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:54,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:54,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:54,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826008177] [2022-11-16 11:38:54,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:54,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:38:54,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:54,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:38:54,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:54,706 INFO L87 Difference]: Start difference. First operand 310 states and 739 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:54,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:54,788 INFO L93 Difference]: Finished difference Result 511 states and 1226 transitions. [2022-11-16 11:38:54,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:54,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:38:54,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:54,791 INFO L225 Difference]: With dead ends: 511 [2022-11-16 11:38:54,791 INFO L226 Difference]: Without dead ends: 421 [2022-11-16 11:38:54,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:54,792 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:54,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2022-11-16 11:38:54,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-11-16 11:38:54,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 307. [2022-11-16 11:38:54,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 305 states have (on average 2.40327868852459) internal successors, (733), 306 states have internal predecessors, (733), 0 states have call successors, (0), 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 11:38:54,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 733 transitions. [2022-11-16 11:38:54,805 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 733 transitions. Word has length 24 [2022-11-16 11:38:54,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:54,805 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 733 transitions. [2022-11-16 11:38:54,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 11:38:54,806 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 733 transitions. [2022-11-16 11:38:54,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:54,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:54,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:54,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:38:55,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:55,022 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 11:38:55,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:55,023 INFO L85 PathProgramCache]: Analyzing trace with hash 858877488, now seen corresponding path program 5 times [2022-11-16 11:38:55,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:55,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687309873] [2022-11-16 11:38:55,024 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 11:38:55,024 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 11:38:55,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:55,026 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:55,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (14)] Waiting until timeout for monitored process [2022-11-16 11:38:55,237 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:38:55,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:38:55,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 11:38:55,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:38:55,705 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 11:38:55,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:38:55,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:38:55,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687309873] [2022-11-16 11:38:55,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687309873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:55,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:55,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:38:55,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744621853] [2022-11-16 11:38:55,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:55,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:38:55,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:38:55,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:38:55,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:55,708 INFO L87 Difference]: Start difference. First operand 307 states and 733 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:55,796 INFO L93 Difference]: Finished difference Result 579 states and 1387 transitions. [2022-11-16 11:38:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:38:55,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 11:38:55,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:55,800 INFO L225 Difference]: With dead ends: 579 [2022-11-16 11:38:55,800 INFO L226 Difference]: Without dead ends: 456 [2022-11-16 11:38:55,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:38:55,802 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:55,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 29 Unchecked, 0.1s Time] [2022-11-16 11:38:55,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-16 11:38:55,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 378. [2022-11-16 11:38:55,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 376 states have (on average 2.3404255319148937) internal successors, (880), 377 states have internal predecessors, (880), 0 states have call successors, (0), 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 11:38:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 880 transitions. [2022-11-16 11:38:55,816 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 880 transitions. Word has length 24 [2022-11-16 11:38:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:55,817 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 880 transitions. [2022-11-16 11:38:55,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 11:38:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 880 transitions. [2022-11-16 11:38:55,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 11:38:55,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:55,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:55,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (14)] Forceful destruction successful, exit code 0 [2022-11-16 11:38:56,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:56,034 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-16 11:38:56,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1251489000, now seen corresponding path program 4 times [2022-11-16 11:38:56,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:38:56,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24671556] [2022-11-16 11:38:56,035 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:38:56,035 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 11:38:56,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:38:56,036 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:56,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (15)] Waiting until timeout for monitored process [2022-11-16 11:38:56,238 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:38:56,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-16 11:38:56,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:38:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:38:56,432 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-16 11:38:56,432 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:38:56,433 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-16 11:38:56,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-16 11:38:56,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-16 11:38:56,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-16 11:38:56,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-16 11:38:56,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-16 11:38:56,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-16 11:38:56,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-16 11:38:56,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-16 11:38:56,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-16 11:38:56,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-16 11:38:56,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-16 11:38:56,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-16 11:38:56,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 (15)] Forceful destruction successful, exit code 0 [2022-11-16 11:38:56,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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 11:38:56,657 INFO L444 BasicCegarLoop]: Path program histogram: [5, 4, 1, 1, 1, 1, 1] [2022-11-16 11:38:56,663 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:38:56,664 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:38:56,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:38:56 BasicIcfg [2022-11-16 11:38:56,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:38:56,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:38:56,741 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:38:56,741 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:38:56,741 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:38:31" (3/4) ... [2022-11-16 11:38:56,744 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:38:56,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:38:56,745 INFO L158 Benchmark]: Toolchain (without parser) took 27643.78ms. Allocated memory was 60.8MB in the beginning and 142.6MB in the end (delta: 81.8MB). Free memory was 38.0MB in the beginning and 89.7MB in the end (delta: -51.7MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2022-11-16 11:38:56,745 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 60.8MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:38:56,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 937.41ms. Allocated memory is still 60.8MB. Free memory was 37.8MB in the beginning and 31.6MB in the end (delta: 6.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:38:56,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.62ms. Allocated memory is still 60.8MB. Free memory was 31.6MB in the beginning and 29.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:38:56,746 INFO L158 Benchmark]: Boogie Preprocessor took 73.75ms. Allocated memory is still 60.8MB. Free memory was 29.0MB in the beginning and 27.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:38:56,747 INFO L158 Benchmark]: RCFGBuilder took 1226.19ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 26.8MB in the beginning and 51.7MB in the end (delta: -24.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-16 11:38:56,747 INFO L158 Benchmark]: TraceAbstraction took 25276.29ms. Allocated memory was 88.1MB in the beginning and 142.6MB in the end (delta: 54.5MB). Free memory was 51.2MB in the beginning and 90.7MB in the end (delta: -39.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-11-16 11:38:56,747 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 89.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:38:56,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 60.8MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 937.41ms. Allocated memory is still 60.8MB. Free memory was 37.8MB in the beginning and 31.6MB in the end (delta: 6.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.62ms. Allocated memory is still 60.8MB. Free memory was 31.6MB in the beginning and 29.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.75ms. Allocated memory is still 60.8MB. Free memory was 29.0MB in the beginning and 27.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1226.19ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 26.8MB in the beginning and 51.7MB in the end (delta: -24.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 25276.29ms. Allocated memory was 88.1MB in the beginning and 142.6MB in the end (delta: 54.5MB). Free memory was 51.2MB in the beginning and 90.7MB in the end (delta: -39.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 89.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5s, 138 PlacesBefore, 46 PlacesAfterwards, 130 TransitionsBefore, 37 TransitionsAfterwards, 2544 CoEnabledTransitionPairs, 6 FixpointIterations, 51 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 125 TotalNumberOfCompositions, 6895 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3863, independent: 3689, independent conditional: 0, independent unconditional: 3689, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1846, independent: 1796, independent conditional: 0, independent unconditional: 1796, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1846, independent: 1768, independent conditional: 0, independent unconditional: 1768, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 78, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 510, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 448, dependent conditional: 0, dependent unconditional: 448, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3863, independent: 1893, independent conditional: 0, independent unconditional: 1893, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 1846, unknown conditional: 0, unknown unconditional: 1846] , Statistics on independence cache: Total cache size (in pairs): 267, Positive cache size: 244, Positive conditional cache size: 0, Positive unconditional cache size: 244, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, 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: [L717] 0 int __unbuffered_p2_EBX = 0; [L734] 0 _Bool z$r_buff1_thd2; [L735] 0 _Bool z$r_buff1_thd3; [L732] 0 _Bool z$r_buff1_thd0; [L733] 0 _Bool z$r_buff1_thd1; [L742] 0 _Bool weak$$choice0; [L740] 0 int z$w_buff1; [L743] 0 _Bool weak$$choice2; [L726] 0 _Bool z$flush_delayed; [L738] 0 int z$w_buff0; [L729] 0 _Bool z$r_buff0_thd1; [L730] 0 _Bool z$r_buff0_thd2; [L711] 0 int __unbuffered_p1_EAX = 0; [L728] 0 _Bool z$r_buff0_thd0; [L731] 0 _Bool z$r_buff0_thd3; [L727] 0 int z$mem_tmp; [L736] 0 _Bool z$read_delayed; [L715] 0 int __unbuffered_p2_EAX = 0; [L737] 0 int *z$read_delayed_var; [L741] 0 _Bool z$w_buff1_used; [L709] 0 int __unbuffered_cnt = 0; [L719] 0 _Bool main$tmp_guard1; [L718] 0 _Bool main$tmp_guard0; [L713] 0 int __unbuffered_p1_EBX = 0; [L739] 0 _Bool z$w_buff0_used; [L721] 0 int x = 0; [L723] 0 int y = 0; [L725] 0 int z = 0; [L843] 0 pthread_t t153; [L844] FCALL, FORK 0 pthread_create(&t153, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t153, ((void *)0), P0, ((void *)0))=0, t153={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L845] 0 pthread_t t154; [L747] 1 z$w_buff1 = z$w_buff0 [L748] 1 z$w_buff0 = 1 [L749] 1 z$w_buff1_used = z$w_buff0_used [L750] 1 z$w_buff0_used = (_Bool)1 [L751] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L751] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L752] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L753] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L754] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L755] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L756] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L759] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L846] FCALL, FORK 0 pthread_create(&t154, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t154, ((void *)0), P1, ((void *)0))=1, t153={3:0}, t154={7:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L847] 0 pthread_t t155; [L848] FCALL, FORK 0 pthread_create(&t155, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t155, ((void *)0), P2, ((void *)0))=2, t153={3:0}, t154={7:0}, t155={11:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L799] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L802] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L805] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L806] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L807] 3 z$flush_delayed = weak$$choice2 [L808] 3 z$mem_tmp = z [L809] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L810] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L811] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L812] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L813] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L814] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L815] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L816] 3 __unbuffered_p2_EBX = z [L817] 3 z = z$flush_delayed ? z$mem_tmp : z [L818] 3 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=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=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L822] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L823] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L824] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L825] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=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=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L762] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L763] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L764] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L765] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L766] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=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=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L769] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 1 return 0; [L828] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L830] 3 return 0; [L785] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L786] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L787] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L788] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L789] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=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=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L794] 2 return 0; [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L852] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L852] RET 0 assume_abort_if_not(main$tmp_guard0) [L854] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L855] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L856] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L857] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L858] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t153={3:0}, t154={7:0}, t155={11:0}, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L861] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L863] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - 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: 841]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 848]: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 159 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 25.0s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 334 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 334 mSDsluCounter, 377 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 155 IncrementalHoareTripleChecker+Unchecked, 263 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1251 IncrementalHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 114 mSDtfsCounter, 1251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1540occurred in iteration=0, InterpolantAutomatonStates: 69, 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, 13 MinimizatonAttempts, 945 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 263 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 226 ConstructedInterpolants, 76 QuantifiedInterpolants, 4300 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1828 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 11:38:56,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32dd642-7b0b-46a1-8399-7b4171748198/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