./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro --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 fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 --- 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-8393723 [2022-11-18 19:47:21,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:47:21,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:47:21,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:47:21,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:47:21,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:47:21,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:47:21,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:47:21,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:47:21,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:47:21,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:47:21,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:47:21,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:47:21,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:47:21,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:47:21,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:47:21,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:47:21,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:47:21,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:47:21,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:47:21,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:47:21,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:47:21,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:47:21,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:47:21,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:47:21,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:47:21,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:47:21,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:47:21,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:47:21,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:47:21,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:47:21,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:47:21,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:47:21,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:47:21,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:47:21,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:47:21,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:47:21,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:47:21,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:47:21,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:47:21,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:47:21,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 19:47:21,243 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:47:21,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:47:21,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:47:21,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:47:21,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:47:21,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:47:21,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:47:21,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:47:21,247 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:47:21,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:47:21,248 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:47:21,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:47:21,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:47:21,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:47:21,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:47:21,249 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 19:47:21,250 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 19:47:21,250 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 19:47:21,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:47:21,250 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:47:21,250 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:47:21,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:47:21,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:47:21,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:47:21,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:47:21,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:47:21,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:47:21,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:47:21,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:47:21,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:47:21,253 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_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 [2022-11-18 19:47:21,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:47:21,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:47:21,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:47:21,616 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:47:21,619 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:47:21,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-18 19:47:21,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/data/cc728c7f1/71035bc8758842688c4116bf2e57c6b5/FLAGacd1e6ed4 [2022-11-18 19:47:22,273 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:47:22,274 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-18 19:47:22,295 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/data/cc728c7f1/71035bc8758842688c4116bf2e57c6b5/FLAGacd1e6ed4 [2022-11-18 19:47:22,549 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/data/cc728c7f1/71035bc8758842688c4116bf2e57c6b5 [2022-11-18 19:47:22,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:47:22,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:47:22,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:47:22,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:47:22,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:47:22,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:47:22" (1/1) ... [2022-11-18 19:47:22,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6cb72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:22, skipping insertion in model container [2022-11-18 19:47:22,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:47:22" (1/1) ... [2022-11-18 19:47:22,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:47:22,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:47:22,844 WARN L234 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_067bd006-062b-4bce-821f-07846be42320/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-18 19:47:23,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:47:23,052 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:47:23,070 WARN L234 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_067bd006-062b-4bce-821f-07846be42320/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-18 19:47:23,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:47:23,198 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:47:23,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23 WrapperNode [2022-11-18 19:47:23,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:47:23,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:47:23,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:47:23,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:47:23,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,272 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2022-11-18 19:47:23,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:47:23,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:47:23,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:47:23,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:47:23,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,296 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:47:23,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:47:23,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:47:23,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:47:23,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (1/1) ... [2022-11-18 19:47:23,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:47:23,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:23,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:47:23,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:47:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:47:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:47:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:47:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:47:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:47:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 19:47:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 19:47:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 19:47:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 19:47:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:47:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:47:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:47:23,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:47:23,407 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:47:23,632 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:47:23,634 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:47:24,017 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:47:24,314 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:47:24,314 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:47:24,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:24 BoogieIcfgContainer [2022-11-18 19:47:24,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:47:24,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:47:24,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:47:24,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:47:24,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:47:22" (1/3) ... [2022-11-18 19:47:24,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca99bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:47:24, skipping insertion in model container [2022-11-18 19:47:24,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:23" (2/3) ... [2022-11-18 19:47:24,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca99bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:47:24, skipping insertion in model container [2022-11-18 19:47:24,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:24" (3/3) ... [2022-11-18 19:47:24,343 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-18 19:47:24,365 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:47:24,365 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-18 19:47:24,365 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:47:24,431 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:47:24,467 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 19:47:24,483 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 103 transitions, 216 flow [2022-11-18 19:47:24,486 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 103 transitions, 216 flow [2022-11-18 19:47:24,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 103 transitions, 216 flow [2022-11-18 19:47:24,536 INFO L130 PetriNetUnfolder]: 2/101 cut-off events. [2022-11-18 19:47:24,536 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:47:24,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-11-18 19:47:24,543 INFO L119 LiptonReduction]: Number of co-enabled transitions 1276 [2022-11-18 19:47:29,308 INFO L134 LiptonReduction]: Checked pairs total: 3222 [2022-11-18 19:47:29,309 INFO L136 LiptonReduction]: Total number of compositions: 108 [2022-11-18 19:47:29,318 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 26 transitions, 62 flow [2022-11-18 19:47:29,352 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:29,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:47:29,378 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;@4e236254, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:47:29,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 19:47:29,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:29,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 19:47:29,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:29,388 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 19:47:29,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:29,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:29,394 INFO L85 PathProgramCache]: Analyzing trace with hash 465, now seen corresponding path program 1 times [2022-11-18 19:47:29,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:29,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40563649] [2022-11-18 19:47:29,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:29,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:29,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:29,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:29,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40563649] [2022-11-18 19:47:29,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40563649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:29,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:29,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 19:47:29,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131632383] [2022-11-18 19:47:29,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:29,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:47:29,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:29,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:47:29,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:47:29,552 INFO L87 Difference]: Start difference. First operand has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 0 states have call successors, (0), 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) [2022-11-18 19:47:29,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:29,629 INFO L93 Difference]: Finished difference Result 204 states and 491 transitions. [2022-11-18 19:47:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:47:29,633 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 [2022-11-18 19:47:29,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:29,649 INFO L225 Difference]: With dead ends: 204 [2022-11-18 19:47:29,649 INFO L226 Difference]: Without dead ends: 204 [2022-11-18 19:47:29,650 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 [2022-11-18 19:47:29,655 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:29,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:29,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-18 19:47:29,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-11-18 19:47:29,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 2.4673366834170856) internal successors, (491), 203 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:29,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 491 transitions. [2022-11-18 19:47:29,747 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 491 transitions. Word has length 1 [2022-11-18 19:47:29,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:29,748 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 491 transitions. [2022-11-18 19:47:29,748 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) [2022-11-18 19:47:29,749 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 491 transitions. [2022-11-18 19:47:29,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 19:47:29,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:29,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 19:47:29,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:47:29,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:29,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:29,753 INFO L85 PathProgramCache]: Analyzing trace with hash 456404, now seen corresponding path program 1 times [2022-11-18 19:47:29,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:29,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886990090] [2022-11-18 19:47:29,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:29,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:30,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:30,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:30,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886990090] [2022-11-18 19:47:30,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886990090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:30,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:30,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:47:30,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921451362] [2022-11-18 19:47:30,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:30,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:47:30,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:30,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:47:30,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:30,135 INFO L87 Difference]: Start difference. First operand 204 states and 491 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) [2022-11-18 19:47:30,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:30,223 INFO L93 Difference]: Finished difference Result 167 states and 394 transitions. [2022-11-18 19:47:30,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:47:30,223 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 [2022-11-18 19:47:30,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:30,226 INFO L225 Difference]: With dead ends: 167 [2022-11-18 19:47:30,227 INFO L226 Difference]: Without dead ends: 162 [2022-11-18 19:47:30,229 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 [2022-11-18 19:47:30,231 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:30,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-18 19:47:30,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-18 19:47:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 2.40625) internal successors, (385), 161 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:30,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 385 transitions. [2022-11-18 19:47:30,251 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 385 transitions. Word has length 3 [2022-11-18 19:47:30,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:30,252 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 385 transitions. [2022-11-18 19:47:30,252 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) [2022-11-18 19:47:30,252 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 385 transitions. [2022-11-18 19:47:30,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:47:30,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:30,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:30,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:47:30,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:30,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:30,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1411025385, now seen corresponding path program 1 times [2022-11-18 19:47:30,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:30,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366773585] [2022-11-18 19:47:30,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:30,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:30,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:30,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:30,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366773585] [2022-11-18 19:47:30,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366773585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:30,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:30,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:47:30,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423292018] [2022-11-18 19:47:30,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:30,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:47:30,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:30,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:47:30,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:47:30,463 INFO L87 Difference]: Start difference. First operand 162 states and 385 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:30,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:30,572 INFO L93 Difference]: Finished difference Result 197 states and 453 transitions. [2022-11-18 19:47:30,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:47:30,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 19:47:30,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:30,574 INFO L225 Difference]: With dead ends: 197 [2022-11-18 19:47:30,574 INFO L226 Difference]: Without dead ends: 197 [2022-11-18 19:47:30,574 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 [2022-11-18 19:47:30,575 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:30,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 5 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:30,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-18 19:47:30,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 177. [2022-11-18 19:47:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 2.4114285714285715) internal successors, (422), 176 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:30,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 422 transitions. [2022-11-18 19:47:30,601 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 422 transitions. Word has length 8 [2022-11-18 19:47:30,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:30,601 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 422 transitions. [2022-11-18 19:47:30,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:30,601 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 422 transitions. [2022-11-18 19:47:30,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:47:30,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:30,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:30,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:47:30,602 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:30,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:30,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1411025349, now seen corresponding path program 1 times [2022-11-18 19:47:30,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:30,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394839906] [2022-11-18 19:47:30,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:30,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:30,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:30,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394839906] [2022-11-18 19:47:30,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394839906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:30,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:30,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:47:30,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920737124] [2022-11-18 19:47:30,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:30,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:47:30,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:30,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:47:30,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:47:30,983 INFO L87 Difference]: Start difference. First operand 177 states and 422 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:31,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:31,071 INFO L93 Difference]: Finished difference Result 152 states and 337 transitions. [2022-11-18 19:47:31,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:47:31,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 19:47:31,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:31,076 INFO L225 Difference]: With dead ends: 152 [2022-11-18 19:47:31,076 INFO L226 Difference]: Without dead ends: 127 [2022-11-18 19:47:31,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:47:31,079 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 28 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:31,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 5 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:31,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-18 19:47:31,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-11-18 19:47:31,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 2.3174603174603177) internal successors, (292), 126 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:31,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 292 transitions. [2022-11-18 19:47:31,093 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 292 transitions. Word has length 8 [2022-11-18 19:47:31,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:31,093 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 292 transitions. [2022-11-18 19:47:31,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:31,093 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 292 transitions. [2022-11-18 19:47:31,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:47:31,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:31,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:31,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:47:31,094 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:31,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:31,095 INFO L85 PathProgramCache]: Analyzing trace with hash -792141697, now seen corresponding path program 1 times [2022-11-18 19:47:31,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:31,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981401754] [2022-11-18 19:47:31,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:31,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:31,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:31,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981401754] [2022-11-18 19:47:31,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981401754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:31,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:31,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:47:31,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644221032] [2022-11-18 19:47:31,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:31,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:47:31,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:31,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:47:31,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:47:31,258 INFO L87 Difference]: Start difference. First operand 127 states and 292 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:31,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:31,422 INFO L93 Difference]: Finished difference Result 152 states and 337 transitions. [2022-11-18 19:47:31,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:47:31,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 19:47:31,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:31,424 INFO L225 Difference]: With dead ends: 152 [2022-11-18 19:47:31,425 INFO L226 Difference]: Without dead ends: 132 [2022-11-18 19:47:31,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:47:31,426 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 38 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:31,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 5 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:31,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-18 19:47:31,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-11-18 19:47:31,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 2.2977099236641223) internal successors, (301), 131 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:31,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 301 transitions. [2022-11-18 19:47:31,432 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 301 transitions. Word has length 9 [2022-11-18 19:47:31,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:31,432 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 301 transitions. [2022-11-18 19:47:31,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:31,432 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 301 transitions. [2022-11-18 19:47:31,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 19:47:31,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:31,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:31,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:47:31,434 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:31,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:31,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1213345968, now seen corresponding path program 1 times [2022-11-18 19:47:31,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:31,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668854339] [2022-11-18 19:47:31,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:31,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:31,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:31,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:31,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668854339] [2022-11-18 19:47:31,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668854339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:31,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:31,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:47:31,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778714754] [2022-11-18 19:47:31,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:31,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:47:31,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:31,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:47:31,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:47:31,606 INFO L87 Difference]: Start difference. First operand 132 states and 301 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:31,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:31,747 INFO L93 Difference]: Finished difference Result 162 states and 360 transitions. [2022-11-18 19:47:31,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:47:31,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-18 19:47:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:31,751 INFO L225 Difference]: With dead ends: 162 [2022-11-18 19:47:31,751 INFO L226 Difference]: Without dead ends: 87 [2022-11-18 19:47:31,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:47:31,752 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 35 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:31,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:31,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-18 19:47:31,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-18 19:47:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 2.13953488372093) internal successors, (184), 86 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 184 transitions. [2022-11-18 19:47:31,755 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 184 transitions. Word has length 10 [2022-11-18 19:47:31,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:31,756 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 184 transitions. [2022-11-18 19:47:31,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:31,756 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 184 transitions. [2022-11-18 19:47:31,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:47:31,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:31,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:31,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:47:31,757 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:31,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:31,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1204854925, now seen corresponding path program 1 times [2022-11-18 19:47:31,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:31,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291079763] [2022-11-18 19:47:31,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:31,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:32,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:32,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291079763] [2022-11-18 19:47:32,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291079763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:32,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:32,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:47:32,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295725495] [2022-11-18 19:47:32,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:32,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:47:32,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:32,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:47:32,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:47:32,002 INFO L87 Difference]: Start difference. First operand 87 states and 184 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:32,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:32,092 INFO L93 Difference]: Finished difference Result 72 states and 126 transitions. [2022-11-18 19:47:32,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:47:32,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 19:47:32,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:32,095 INFO L225 Difference]: With dead ends: 72 [2022-11-18 19:47:32,095 INFO L226 Difference]: Without dead ends: 55 [2022-11-18 19:47:32,095 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 [2022-11-18 19:47:32,096 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:32,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:32,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-18 19:47:32,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-11-18 19:47:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.7037037037037037) internal successors, (92), 54 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 92 transitions. [2022-11-18 19:47:32,100 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 92 transitions. Word has length 11 [2022-11-18 19:47:32,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:32,100 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 92 transitions. [2022-11-18 19:47:32,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:32,101 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 92 transitions. [2022-11-18 19:47:32,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:47:32,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:32,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:32,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:47:32,102 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:32,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:32,103 INFO L85 PathProgramCache]: Analyzing trace with hash -332231328, now seen corresponding path program 1 times [2022-11-18 19:47:32,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:32,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758734254] [2022-11-18 19:47:32,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:32,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:32,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:32,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:32,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758734254] [2022-11-18 19:47:32,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758734254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:32,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:32,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:47:32,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371026749] [2022-11-18 19:47:32,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:32,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:47:32,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:32,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:47:32,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:47:32,413 INFO L87 Difference]: Start difference. First operand 55 states and 92 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:32,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:32,524 INFO L93 Difference]: Finished difference Result 40 states and 60 transitions. [2022-11-18 19:47:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:47:32,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 19:47:32,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:32,525 INFO L225 Difference]: With dead ends: 40 [2022-11-18 19:47:32,525 INFO L226 Difference]: Without dead ends: 33 [2022-11-18 19:47:32,525 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 [2022-11-18 19:47:32,526 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 23 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:32,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:32,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-18 19:47:32,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-18 19:47:32,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.5) internal successors, (48), 32 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:32,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 48 transitions. [2022-11-18 19:47:32,528 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 48 transitions. Word has length 13 [2022-11-18 19:47:32,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:32,528 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 48 transitions. [2022-11-18 19:47:32,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:32,529 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2022-11-18 19:47:32,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:47:32,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:32,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:32,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:47:32,530 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:32,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:32,530 INFO L85 PathProgramCache]: Analyzing trace with hash -117177433, now seen corresponding path program 1 times [2022-11-18 19:47:32,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:32,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422814625] [2022-11-18 19:47:32,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:32,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:33,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:33,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:33,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422814625] [2022-11-18 19:47:33,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422814625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:33,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:33,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:47:33,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107184660] [2022-11-18 19:47:33,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:33,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:47:33,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:33,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:47:33,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:47:33,171 INFO L87 Difference]: Start difference. First operand 33 states and 48 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:33,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:33,348 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2022-11-18 19:47:33,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:47:33,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 19:47:33,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:33,349 INFO L225 Difference]: With dead ends: 42 [2022-11-18 19:47:33,349 INFO L226 Difference]: Without dead ends: 25 [2022-11-18 19:47:33,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:47:33,350 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 26 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:33,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 4 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:33,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-18 19:47:33,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-18 19:47:33,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:33,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2022-11-18 19:47:33,353 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2022-11-18 19:47:33,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:33,353 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2022-11-18 19:47:33,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:33,353 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-11-18 19:47:33,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:47:33,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:33,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:33,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:47:33,355 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:33,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:33,355 INFO L85 PathProgramCache]: Analyzing trace with hash -147890329, now seen corresponding path program 2 times [2022-11-18 19:47:33,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:33,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125364277] [2022-11-18 19:47:33,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:33,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:33,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:33,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:33,522 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:47:33,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-18 19:47:33,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-11-18 19:47:33,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-18 19:47:33,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-18 19:47:33,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-18 19:47:33,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-11-18 19:47:33,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-11-18 19:47:33,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-11-18 19:47:33,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-11-18 19:47:33,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-18 19:47:33,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:47:33,529 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:33,534 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:47:33,534 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:47:33,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:47:33 BasicIcfg [2022-11-18 19:47:33,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:47:33,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:47:33,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:47:33,593 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:47:33,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:24" (3/4) ... [2022-11-18 19:47:33,596 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:47:33,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:47:33,597 INFO L158 Benchmark]: Toolchain (without parser) took 11041.98ms. Allocated memory was 98.6MB in the beginning and 192.9MB in the end (delta: 94.4MB). Free memory was 64.2MB in the beginning and 131.9MB in the end (delta: -67.7MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2022-11-18 19:47:33,597 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 98.6MB. Free memory was 70.2MB in the beginning and 70.2MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:47:33,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 642.27ms. Allocated memory is still 98.6MB. Free memory was 63.9MB in the beginning and 62.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:47:33,598 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.98ms. Allocated memory is still 98.6MB. Free memory was 62.5MB in the beginning and 59.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:47:33,598 INFO L158 Benchmark]: Boogie Preprocessor took 28.03ms. Allocated memory is still 98.6MB. Free memory was 59.8MB in the beginning and 58.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:47:33,598 INFO L158 Benchmark]: RCFGBuilder took 1015.79ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 58.3MB in the beginning and 87.8MB in the end (delta: -29.5MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:33,599 INFO L158 Benchmark]: TraceAbstraction took 9271.64ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 86.9MB in the beginning and 131.9MB in the end (delta: -45.0MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-11-18 19:47:33,599 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 192.9MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:47:33,601 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 98.6MB. Free memory was 70.2MB in the beginning and 70.2MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 642.27ms. Allocated memory is still 98.6MB. Free memory was 63.9MB in the beginning and 62.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.98ms. Allocated memory is still 98.6MB. Free memory was 62.5MB in the beginning and 59.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.03ms. Allocated memory is still 98.6MB. Free memory was 59.8MB in the beginning and 58.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1015.79ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 58.3MB in the beginning and 87.8MB in the end (delta: -29.5MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9271.64ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 86.9MB in the beginning and 131.9MB in the end (delta: -45.0MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 192.9MB. Free memory is still 131.9MB. 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: 4.8s, 108 PlacesBefore, 32 PlacesAfterwards, 103 TransitionsBefore, 26 TransitionsAfterwards, 1276 CoEnabledTransitionPairs, 7 FixpointIterations, 49 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 108 TotalNumberOfCompositions, 3222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1669, independent: 1549, independent conditional: 0, independent unconditional: 1549, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 853, independent: 821, independent conditional: 0, independent unconditional: 821, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 853, independent: 809, independent conditional: 0, independent unconditional: 809, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 320, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 301, dependent conditional: 0, dependent unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1669, independent: 728, independent conditional: 0, independent unconditional: 728, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 853, unknown conditional: 0, unknown unconditional: 853] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 93, Positive conditional cache size: 0, Positive unconditional cache size: 93, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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: [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L729] 0 int y$w_buff0; [L731] 0 int y$w_buff1; [L723] 0 _Bool y$r_buff0_thd2; [L720] 0 int y$mem_tmp; [L710] 0 int __unbuffered_p1_EAX = 0; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L727] 0 _Bool y$read_delayed; [L708] 0 int __unbuffered_cnt = 0; [L719] 0 _Bool y$flush_delayed; [L732] 0 _Bool y$w_buff1_used; [L714] 0 _Bool main$tmp_guard1; [L713] 0 _Bool main$tmp_guard0; [L712] 0 int __unbuffered_p1_EBX = 0; [L728] 0 int *y$read_delayed_var; [L730] 0 _Bool y$w_buff0_used; [L716] 0 int x = 0; [L724] 0 _Bool y$r_buff1_thd0; [L718] 0 int y = 0; [L726] 0 _Bool y$r_buff1_thd2; [L725] 0 _Bool y$r_buff1_thd1; [L807] 0 pthread_t t2305; [L808] FCALL, FORK 0 pthread_create(&t2305, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2305, ((void *)0), P0, ((void *)0))=-1, t2305={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L738] 1 y$w_buff1 = y$w_buff0 [L739] 1 y$w_buff0 = 1 [L740] 1 y$w_buff1_used = y$w_buff0_used [L741] 1 y$w_buff0_used = (_Bool)1 [L742] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L742] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L743] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L744] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L745] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L746] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L809] 0 pthread_t t2306; [L810] FCALL, FORK 0 pthread_create(&t2306, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2306, ((void *)0), P1, ((void *)0))=0, t2305={5:0}, t2306={3:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L766] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 y$flush_delayed = weak$$choice2 [L772] 2 y$mem_tmp = y [L773] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L774] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L775] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L776] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L777] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L779] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EBX = y [L781] 2 y = y$flush_delayed ? y$mem_tmp : y [L782] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L786] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L787] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L788] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L789] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L794] 2 return 0; [L752] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L753] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L754] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L755] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L756] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L812] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L814] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L814] RET 0 assume_abort_if_not(main$tmp_guard0) [L816] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L817] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L818] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L819] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L820] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2305={5:0}, t2306={3:0}, weak$$choice0=66, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L823] 0 main$tmp_guard1 = !(__unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L825] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$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: 805]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 808]: 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: 810]: 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 5 procedures, 121 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 518 IncrementalHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 14 mSDtfsCounter, 518 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=0, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 20 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 404 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 19:47:33,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro --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 fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 --- 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-8393723 [2022-11-18 19:47:35,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:47:35,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:47:35,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:47:35,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:47:35,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:47:35,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:47:35,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:47:35,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:47:35,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:47:35,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:47:35,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:47:35,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:47:35,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:47:35,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:47:35,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:47:35,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:47:35,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:47:35,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:47:35,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:47:35,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:47:35,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:47:35,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:47:35,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:47:35,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:47:35,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:47:35,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:47:35,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:47:35,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:47:35,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:47:35,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:47:35,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:47:35,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:47:35,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:47:35,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:47:35,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:47:35,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:47:35,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:47:35,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:47:35,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:47:35,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:47:35,942 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 19:47:35,966 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:47:35,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:47:35,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:47:35,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:47:35,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:47:35,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:47:35,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:47:35,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:47:35,969 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:47:35,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:47:35,970 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:47:35,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:47:35,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:47:35,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:47:35,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:47:35,971 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 19:47:35,971 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 19:47:35,971 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 19:47:35,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:47:35,971 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:47:35,972 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 19:47:35,972 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 19:47:35,972 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:47:35,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:47:35,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:47:35,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:47:35,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:47:35,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:47:35,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:47:35,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:47:35,974 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 19:47:35,974 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 19:47:35,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 19:47:35,974 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_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro 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 -> fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 [2022-11-18 19:47:36,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:47:36,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:47:36,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:47:36,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:47:36,470 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:47:36,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-18 19:47:36,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/data/fff2baaf7/12ce4dc8ec774110a4ebb7e309cae5ae/FLAGbc43019f8 [2022-11-18 19:47:37,214 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:47:37,215 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-18 19:47:37,235 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/data/fff2baaf7/12ce4dc8ec774110a4ebb7e309cae5ae/FLAGbc43019f8 [2022-11-18 19:47:37,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/data/fff2baaf7/12ce4dc8ec774110a4ebb7e309cae5ae [2022-11-18 19:47:37,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:47:37,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:47:37,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:47:37,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:47:37,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:47:37,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:47:37" (1/1) ... [2022-11-18 19:47:37,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a73c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:37, skipping insertion in model container [2022-11-18 19:47:37,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:47:37" (1/1) ... [2022-11-18 19:47:37,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:47:37,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:47:37,673 WARN L234 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_067bd006-062b-4bce-821f-07846be42320/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-18 19:47:37,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:47:38,018 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:47:38,033 WARN L234 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_067bd006-062b-4bce-821f-07846be42320/sv-benchmarks/c/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-18 19:47:38,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:47:38,137 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:47:38,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38 WrapperNode [2022-11-18 19:47:38,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:47:38,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:47:38,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:47:38,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:47:38,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,211 INFO L138 Inliner]: procedures = 178, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 114 [2022-11-18 19:47:38,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:47:38,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:47:38,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:47:38,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:47:38,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,268 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:47:38,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:47:38,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:47:38,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:47:38,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (1/1) ... [2022-11-18 19:47:38,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:47:38,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:38,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:47:38,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:47:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:47:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:47:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:47:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:47:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 19:47:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 19:47:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 19:47:38,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 19:47:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 19:47:38,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 19:47:38,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:47:38,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:47:38,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:47:38,393 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:47:38,636 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:47:38,638 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:47:39,054 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:47:39,260 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:47:39,260 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:47:39,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:39 BoogieIcfgContainer [2022-11-18 19:47:39,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:47:39,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:47:39,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:47:39,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:47:39,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:47:37" (1/3) ... [2022-11-18 19:47:39,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfd7af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:47:39, skipping insertion in model container [2022-11-18 19:47:39,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:38" (2/3) ... [2022-11-18 19:47:39,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfd7af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:47:39, skipping insertion in model container [2022-11-18 19:47:39,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:39" (3/3) ... [2022-11-18 19:47:39,279 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-18 19:47:39,297 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:47:39,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-18 19:47:39,298 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:47:39,390 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:47:39,434 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 19:47:39,453 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 104 transitions, 218 flow [2022-11-18 19:47:39,463 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 104 transitions, 218 flow [2022-11-18 19:47:39,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 104 transitions, 218 flow [2022-11-18 19:47:39,532 INFO L130 PetriNetUnfolder]: 2/102 cut-off events. [2022-11-18 19:47:39,533 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:47:39,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-11-18 19:47:39,543 INFO L119 LiptonReduction]: Number of co-enabled transitions 1276 [2022-11-18 19:47:47,575 INFO L134 LiptonReduction]: Checked pairs total: 3222 [2022-11-18 19:47:47,576 INFO L136 LiptonReduction]: Total number of compositions: 107 [2022-11-18 19:47:47,584 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 26 transitions, 62 flow [2022-11-18 19:47:47,617 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:47,636 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:47:47,642 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;@67702ce1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:47:47,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 19:47:47,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:47,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 19:47:47,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:47,652 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 19:47:47,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:47,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:47,659 INFO L85 PathProgramCache]: Analyzing trace with hash 466, now seen corresponding path program 1 times [2022-11-18 19:47:47,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:47:47,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853569810] [2022-11-18 19:47:47,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:47,674 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 [2022-11-18 19:47:47,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:47:47,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:47:47,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:47,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 19:47:47,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:47,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:47,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:47:47,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853569810] [2022-11-18 19:47:47,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853569810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:47,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:47,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 19:47:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096672757] [2022-11-18 19:47:47,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:47,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:47:47,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:47:47,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:47:47,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:47:47,848 INFO L87 Difference]: Start difference. First operand has 218 states, 207 states have (on average 2.632850241545894) internal successors, (545), 217 states have internal predecessors, (545), 0 states have call successors, (0), 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) [2022-11-18 19:47:47,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:47,963 INFO L93 Difference]: Finished difference Result 204 states and 491 transitions. [2022-11-18 19:47:47,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:47:47,966 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 [2022-11-18 19:47:47,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:47,979 INFO L225 Difference]: With dead ends: 204 [2022-11-18 19:47:47,995 INFO L226 Difference]: Without dead ends: 204 [2022-11-18 19:47:47,996 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 [2022-11-18 19:47:47,999 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:48,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:48,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-18 19:47:48,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-11-18 19:47:48,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 2.4673366834170856) internal successors, (491), 203 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:48,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 491 transitions. [2022-11-18 19:47:48,077 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 491 transitions. Word has length 1 [2022-11-18 19:47:48,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:48,077 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 491 transitions. [2022-11-18 19:47:48,078 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) [2022-11-18 19:47:48,078 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 491 transitions. [2022-11-18 19:47:48,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 19:47:48,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:48,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 19:47:48,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:48,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:48,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:48,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:48,292 INFO L85 PathProgramCache]: Analyzing trace with hash 457429, now seen corresponding path program 1 times [2022-11-18 19:47:48,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:47:48,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281637261] [2022-11-18 19:47:48,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:48,293 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 [2022-11-18 19:47:48,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:47:48,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:47:48,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:48,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:47:48,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:48,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:48,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:48,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:47:48,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281637261] [2022-11-18 19:47:48,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281637261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:48,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:48,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:47:48,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73461888] [2022-11-18 19:47:48,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:48,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:47:48,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:47:48,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:47:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:48,467 INFO L87 Difference]: Start difference. First operand 204 states and 491 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) [2022-11-18 19:47:48,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:48,577 INFO L93 Difference]: Finished difference Result 167 states and 394 transitions. [2022-11-18 19:47:48,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:47:48,578 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 [2022-11-18 19:47:48,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:48,580 INFO L225 Difference]: With dead ends: 167 [2022-11-18 19:47:48,581 INFO L226 Difference]: Without dead ends: 162 [2022-11-18 19:47:48,581 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 [2022-11-18 19:47:48,582 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:48,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:48,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-18 19:47:48,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-18 19:47:48,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 2.40625) internal successors, (385), 161 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:48,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 385 transitions. [2022-11-18 19:47:48,614 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 385 transitions. Word has length 3 [2022-11-18 19:47:48,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:48,614 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 385 transitions. [2022-11-18 19:47:48,614 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) [2022-11-18 19:47:48,623 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 385 transitions. [2022-11-18 19:47:48,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:47:48,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:48,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:48,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:48,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:48,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:48,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:48,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2043147492, now seen corresponding path program 1 times [2022-11-18 19:47:48,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:47:48,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328798503] [2022-11-18 19:47:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:48,842 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 [2022-11-18 19:47:48,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:47:48,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:47:48,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:48,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:47:48,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:49,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:49,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:49,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:47:49,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328798503] [2022-11-18 19:47:49,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328798503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:49,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:49,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:47:49,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853942483] [2022-11-18 19:47:49,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:49,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:47:49,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:47:49,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:47:49,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:47:49,062 INFO L87 Difference]: Start difference. First operand 162 states and 385 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:49,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:49,250 INFO L93 Difference]: Finished difference Result 107 states and 201 transitions. [2022-11-18 19:47:49,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:47:49,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 19:47:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:49,252 INFO L225 Difference]: With dead ends: 107 [2022-11-18 19:47:49,252 INFO L226 Difference]: Without dead ends: 82 [2022-11-18 19:47:49,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:47:49,254 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:49,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:47:49,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-18 19:47:49,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-11-18 19:47:49,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.8125) internal successors, (145), 81 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:49,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 145 transitions. [2022-11-18 19:47:49,274 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 145 transitions. Word has length 8 [2022-11-18 19:47:49,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:49,275 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 145 transitions. [2022-11-18 19:47:49,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:49,275 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 145 transitions. [2022-11-18 19:47:49,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 19:47:49,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:49,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:49,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:49,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:49,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:49,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:49,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1361947637, now seen corresponding path program 1 times [2022-11-18 19:47:49,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:47:49,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972390236] [2022-11-18 19:47:49,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:49,508 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 [2022-11-18 19:47:49,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:47:49,509 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:47:49,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:49,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:47:49,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:49,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:49,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:49,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:47:49,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972390236] [2022-11-18 19:47:49,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972390236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:49,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:49,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:47:49,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152695771] [2022-11-18 19:47:49,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:49,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:47:49,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:47:49,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:47:49,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:47:49,727 INFO L87 Difference]: Start difference. First operand 82 states and 145 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2022-11-18 19:47:49,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:49,906 INFO L93 Difference]: Finished difference Result 51 states and 81 transitions. [2022-11-18 19:47:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:47:49,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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 [2022-11-18 19:47:49,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:49,908 INFO L225 Difference]: With dead ends: 51 [2022-11-18 19:47:49,908 INFO L226 Difference]: Without dead ends: 42 [2022-11-18 19:47:49,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:47:49,909 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:49,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 8 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:47:49,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-18 19:47:49,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-18 19:47:49,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.625) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:49,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 65 transitions. [2022-11-18 19:47:49,913 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 65 transitions. Word has length 12 [2022-11-18 19:47:49,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:49,914 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 65 transitions. [2022-11-18 19:47:49,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2022-11-18 19:47:49,914 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2022-11-18 19:47:49,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:47:49,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:49,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:49,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:50,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:50,121 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:50,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:50,122 INFO L85 PathProgramCache]: Analyzing trace with hash -2001129906, now seen corresponding path program 1 times [2022-11-18 19:47:50,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:47:50,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413667425] [2022-11-18 19:47:50,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:50,122 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 [2022-11-18 19:47:50,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:47:50,124 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:47:50,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:50,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 19:47:50,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:50,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:50,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:50,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:47:50,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413667425] [2022-11-18 19:47:50,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413667425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:50,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:50,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:47:50,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339039794] [2022-11-18 19:47:50,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:50,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:47:50,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:47:50,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:47:50,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:47:50,601 INFO L87 Difference]: Start difference. First operand 42 states and 65 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:50,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:50,627 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2022-11-18 19:47:50,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:47:50,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 19:47:50,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:50,631 INFO L225 Difference]: With dead ends: 41 [2022-11-18 19:47:50,631 INFO L226 Difference]: Without dead ends: 41 [2022-11-18 19:47:50,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:47:50,635 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:50,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-11-18 19:47:50,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-18 19:47:50,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-18 19:47:50,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.6) internal successors, (64), 40 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:50,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 64 transitions. [2022-11-18 19:47:50,657 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 64 transitions. Word has length 16 [2022-11-18 19:47:50,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:50,658 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 64 transitions. [2022-11-18 19:47:50,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:50,658 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2022-11-18 19:47:50,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:47:50,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:50,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:50,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:50,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:50,873 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:50,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:50,874 INFO L85 PathProgramCache]: Analyzing trace with hash -2001129935, now seen corresponding path program 1 times [2022-11-18 19:47:50,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:47:50,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749962315] [2022-11-18 19:47:50,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:50,874 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 [2022-11-18 19:47:50,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:47:50,875 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:47:50,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:51,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:47:51,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:51,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:51,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:47:51,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749962315] [2022-11-18 19:47:51,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749962315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:51,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:51,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:47:51,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169778023] [2022-11-18 19:47:51,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:51,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:47:51,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:47:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:47:51,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:47:51,061 INFO L87 Difference]: Start difference. First operand 41 states and 64 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:51,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:51,176 INFO L93 Difference]: Finished difference Result 56 states and 84 transitions. [2022-11-18 19:47:51,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:47:51,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 19:47:51,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:51,177 INFO L225 Difference]: With dead ends: 56 [2022-11-18 19:47:51,177 INFO L226 Difference]: Without dead ends: 33 [2022-11-18 19:47:51,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:47:51,178 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:51,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:51,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-18 19:47:51,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-18 19:47:51,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.5) internal successors, (48), 32 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 48 transitions. [2022-11-18 19:47:51,181 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 48 transitions. Word has length 16 [2022-11-18 19:47:51,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:51,181 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 48 transitions. [2022-11-18 19:47:51,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:47:51,182 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2022-11-18 19:47:51,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:47:51,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:51,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:51,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:51,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:51,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 19:47:51,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:51,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1893902351, now seen corresponding path program 2 times [2022-11-18 19:47:51,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:47:51,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491556091] [2022-11-18 19:47:51,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:47:51,393 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 [2022-11-18 19:47:51,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:47:51,395 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 19:47:51,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:51,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:47:51,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-18 19:47:51,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:51,663 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 19:47:51,663 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:47:51,665 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-18 19:47:51,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-11-18 19:47:51,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-18 19:47:51,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-18 19:47:51,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-18 19:47:51,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-11-18 19:47:51,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-11-18 19:47:51,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-11-18 19:47:51,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-11-18 19:47:51,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-18 19:47:51,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:51,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 19:47:51,881 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-11-18 19:47:51,886 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:47:51,887 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:47:51,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:47:51 BasicIcfg [2022-11-18 19:47:51,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:47:51,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:47:51,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:47:51,975 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:47:51,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:39" (3/4) ... [2022-11-18 19:47:51,979 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:47:51,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:47:51,980 INFO L158 Benchmark]: Toolchain (without parser) took 14535.90ms. Allocated memory was 62.9MB in the beginning and 121.6MB in the end (delta: 58.7MB). Free memory was 42.5MB in the beginning and 84.8MB in the end (delta: -42.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2022-11-18 19:47:51,981 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 62.9MB. Free memory was 45.4MB in the beginning and 45.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:47:51,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 692.78ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 34.7MB in the end (delta: 7.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 19:47:51,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.59ms. Allocated memory is still 62.9MB. Free memory was 34.5MB in the beginning and 32.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:51,982 INFO L158 Benchmark]: Boogie Preprocessor took 60.61ms. Allocated memory is still 62.9MB. Free memory was 32.0MB in the beginning and 30.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:51,983 INFO L158 Benchmark]: RCFGBuilder took 994.09ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 30.1MB in the beginning and 63.6MB in the end (delta: -33.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-11-18 19:47:51,983 INFO L158 Benchmark]: TraceAbstraction took 12702.74ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 63.1MB in the beginning and 84.8MB in the end (delta: -21.7MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-11-18 19:47:51,984 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 121.6MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:47:51,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 62.9MB. Free memory was 45.4MB in the beginning and 45.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 692.78ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 34.7MB in the end (delta: 7.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.59ms. Allocated memory is still 62.9MB. Free memory was 34.5MB in the beginning and 32.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.61ms. Allocated memory is still 62.9MB. Free memory was 32.0MB in the beginning and 30.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 994.09ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 30.1MB in the beginning and 63.6MB in the end (delta: -33.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12702.74ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 63.1MB in the beginning and 84.8MB in the end (delta: -21.7MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 121.6MB. Free memory is still 84.8MB. 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: 8.1s, 109 PlacesBefore, 32 PlacesAfterwards, 104 TransitionsBefore, 26 TransitionsAfterwards, 1276 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 107 TotalNumberOfCompositions, 3222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1663, independent: 1543, independent conditional: 0, independent unconditional: 1543, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 855, independent: 821, independent conditional: 0, independent unconditional: 821, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 855, independent: 809, independent conditional: 0, independent unconditional: 809, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 430, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 404, dependent conditional: 0, dependent unconditional: 404, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1663, independent: 722, independent conditional: 0, independent unconditional: 722, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 855, unknown conditional: 0, unknown unconditional: 855] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 90, Positive conditional cache size: 0, Positive unconditional cache size: 90, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, 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: [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L729] 0 int y$w_buff0; [L731] 0 int y$w_buff1; [L723] 0 _Bool y$r_buff0_thd2; [L720] 0 int y$mem_tmp; [L710] 0 int __unbuffered_p1_EAX = 0; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L727] 0 _Bool y$read_delayed; [L708] 0 int __unbuffered_cnt = 0; [L719] 0 _Bool y$flush_delayed; [L732] 0 _Bool y$w_buff1_used; [L714] 0 _Bool main$tmp_guard1; [L713] 0 _Bool main$tmp_guard0; [L712] 0 int __unbuffered_p1_EBX = 0; [L728] 0 int *y$read_delayed_var; [L730] 0 _Bool y$w_buff0_used; [L716] 0 int x = 0; [L724] 0 _Bool y$r_buff1_thd0; [L718] 0 int y = 0; [L726] 0 _Bool y$r_buff1_thd2; [L725] 0 _Bool y$r_buff1_thd1; [L807] 0 pthread_t t2305; [L808] FCALL, FORK 0 pthread_create(&t2305, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2305, ((void *)0), P0, ((void *)0))=-1, t2305={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L809] 0 pthread_t t2306; [L810] FCALL, FORK 0 pthread_create(&t2306, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2306, ((void *)0), P1, ((void *)0))=0, t2305={3:0}, t2306={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L738] 1 y$w_buff1 = y$w_buff0 [L739] 1 y$w_buff0 = 1 [L740] 1 y$w_buff1_used = y$w_buff0_used [L741] 1 y$w_buff0_used = (_Bool)1 [L742] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L742] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L743] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L744] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L745] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L746] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L766] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 y$flush_delayed = weak$$choice2 [L772] 2 y$mem_tmp = y [L773] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L774] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L775] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L776] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L777] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L779] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EBX = y [L781] 2 y = y$flush_delayed ? y$mem_tmp : y [L782] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L786] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L787] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L788] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L789] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L794] 2 return 0; [L752] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L753] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L754] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L755] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L756] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_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=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L812] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L814] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L814] RET 0 assume_abort_if_not(main$tmp_guard0) [L816] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L817] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L818] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L819] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L820] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2305={3:0}, t2306={7:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L823] 0 main$tmp_guard1 = !(__unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L825] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=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=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$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: 805]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 810]: 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: 808]: 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 5 procedures, 122 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 17 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 267 IncrementalHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 10 mSDtfsCounter, 267 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 50 ConstructedInterpolants, 13 QuantifiedInterpolants, 433 SizeOfPredicates, 11 NumberOfNonLiveVariables, 530 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 19:47:52,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_067bd006-062b-4bce-821f-07846be42320/bin/uautomizer-TMbwUNV5ro/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