./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/clever.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/clever.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93a2fdd4bcf1d0c2ab8b4e49feeb28ec4b1782148939310f1cb0ffe97948195e --- 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-2329fc7 [2022-12-13 09:11:16,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:11:16,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:11:16,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:11:16,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:11:16,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:11:16,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:11:16,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:11:16,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:11:16,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:11:16,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:11:16,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:11:16,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:11:16,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:11:16,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:11:16,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:11:16,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:11:16,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:11:16,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:11:16,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:11:16,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:11:16,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:11:16,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:11:16,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:11:16,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:11:16,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:11:16,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:11:16,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:11:16,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:11:16,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:11:16,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:11:16,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:11:16,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:11:16,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:11:16,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:11:16,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:11:16,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:11:16,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:11:16,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:11:16,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:11:16,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:11:16,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-12-13 09:11:16,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:11:16,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:11:16,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 09:11:16,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 09:11:16,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 09:11:16,188 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 09:11:16,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:11:16,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:11:16,189 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:11:16,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:11:16,189 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:11:16,189 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 09:11:16,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:11:16,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:11:16,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:11:16,190 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 09:11:16,190 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 09:11:16,190 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 09:11:16,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:11:16,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 09:11:16,190 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:11:16,191 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:11:16,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:11:16,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:11:16,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:11:16,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:11:16,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:11:16,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:11:16,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:11:16,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:11:16,192 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 09:11:16,192 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-12-13 09:11:16,192 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 09:11:16,192 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 09:11:16,192 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 09:11:16,192 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_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93a2fdd4bcf1d0c2ab8b4e49feeb28ec4b1782148939310f1cb0ffe97948195e [2022-12-13 09:11:16,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:11:16,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:11:16,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:11:16,385 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:11:16,385 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:11:16,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/weaver/clever.wvr.c [2022-12-13 09:11:18,995 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:11:19,150 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:11:19,151 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/sv-benchmarks/c/weaver/clever.wvr.c [2022-12-13 09:11:19,155 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/data/f6fb21804/0586dda2e4344f10b462e81b675b83da/FLAG3d8f98648 [2022-12-13 09:11:19,167 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/data/f6fb21804/0586dda2e4344f10b462e81b675b83da [2022-12-13 09:11:19,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:11:19,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 09:11:19,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:11:19,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:11:19,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:11:19,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385b35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19, skipping insertion in model container [2022-12-13 09:11:19,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:11:19,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:11:19,345 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/sv-benchmarks/c/weaver/clever.wvr.c[2133,2146] [2022-12-13 09:11:19,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:11:19,359 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:11:19,378 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/sv-benchmarks/c/weaver/clever.wvr.c[2133,2146] [2022-12-13 09:11:19,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:11:19,390 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:11:19,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19 WrapperNode [2022-12-13 09:11:19,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:11:19,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:11:19,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:11:19,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:11:19,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,427 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78 [2022-12-13 09:11:19,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:11:19,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:11:19,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:11:19,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:11:19,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:11:19,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:11:19,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:11:19,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:11:19,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (1/1) ... [2022-12-13 09:11:19,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:11:19,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:11:19,483 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 09:11:19,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 09:11:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:11:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 09:11:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 09:11:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 09:11:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 09:11:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:11:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:11:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:11:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:11:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:11:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 09:11:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:11:19,523 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 09:11:19,616 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 09:11:19,618 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:11:19,855 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 09:11:19,863 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:11:19,863 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 09:11:19,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:11:19 BoogieIcfgContainer [2022-12-13 09:11:19,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:11:19,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:11:19,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:11:19,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:11:19,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:11:19" (1/3) ... [2022-12-13 09:11:19,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1ae86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:11:19, skipping insertion in model container [2022-12-13 09:11:19,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:11:19" (2/3) ... [2022-12-13 09:11:19,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1ae86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:11:19, skipping insertion in model container [2022-12-13 09:11:19,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:11:19" (3/3) ... [2022-12-13 09:11:19,874 INFO L112 eAbstractionObserver]: Analyzing ICFG clever.wvr.c [2022-12-13 09:11:19,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:11:19,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-12-13 09:11:19,891 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:11:19,951 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 09:11:19,995 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:11:19,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 09:11:19,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:11:19,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 09:11:19,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 09:11:20,033 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 09:11:20,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 09:11:20,045 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=PARTIAL_ORDER_FA, 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;@5ee9907b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:11:20,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-13 09:11:20,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 09:11:20,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:11:20,231 INFO L85 PathProgramCache]: Analyzing trace with hash 600616548, now seen corresponding path program 1 times [2022-12-13 09:11:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:11:20,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850008144] [2022-12-13 09:11:20,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:11:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:11:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:11:20,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:11:20,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:11:20,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850008144] [2022-12-13 09:11:20,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850008144] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:11:20,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:11:20,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:11:20,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166007688] [2022-12-13 09:11:20,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:11:20,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 09:11:20,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:11:20,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 09:11:20,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 09:11:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:20,409 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:11:20,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:11:20,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:20,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:11:20,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 09:11:20,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:11:20,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1970079253, now seen corresponding path program 1 times [2022-12-13 09:11:20,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:11:20,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549819074] [2022-12-13 09:11:20,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:11:20,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:11:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:11:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:11:20,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:11:20,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549819074] [2022-12-13 09:11:20,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549819074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:11:20,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:11:20,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 09:11:20,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373443647] [2022-12-13 09:11:20,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:11:20,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 09:11:20,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:11:20,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 09:11:20,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 09:11:20,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:20,937 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:11:20,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:11:20,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:20,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:21,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:21,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:21,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 09:11:21,095 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 09:11:21,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:11:21,095 INFO L85 PathProgramCache]: Analyzing trace with hash 246119813, now seen corresponding path program 1 times [2022-12-13 09:11:21,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:11:21,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523742133] [2022-12-13 09:11:21,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:11:21,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:11:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:11:21,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:11:21,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:11:21,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523742133] [2022-12-13 09:11:21,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523742133] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:11:21,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751599616] [2022-12-13 09:11:21,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:11:21,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:11:21,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:11:21,472 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:11:21,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 09:11:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:11:21,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 09:11:21,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:11:21,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 09:11:21,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:11:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 09:11:21,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751599616] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:11:21,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:11:21,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-12-13 09:11:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337651302] [2022-12-13 09:11:21,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:11:21,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 09:11:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:11:21,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 09:11:21,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-12-13 09:11:21,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:21,932 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:11:21,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.071428571428571) internal successors, (169), 14 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:11:21,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:21,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:21,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:22,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 09:11:22,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 09:11:22,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:11:22,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 09:11:22,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:11:22,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1467421395, now seen corresponding path program 1 times [2022-12-13 09:11:22,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:11:22,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575863013] [2022-12-13 09:11:22,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:11:22,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:11:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:11:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:11:23,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:11:23,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575863013] [2022-12-13 09:11:23,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575863013] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:11:23,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342072449] [2022-12-13 09:11:23,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:11:23,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:11:23,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:11:23,630 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:11:23,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 09:11:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:11:23,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 09:11:23,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:11:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:11:29,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:11:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:11:30,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342072449] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:11:30,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:11:30,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 15] total 39 [2022-12-13 09:11:30,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812325718] [2022-12-13 09:11:30,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:11:30,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-12-13 09:11:30,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:11:30,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-12-13 09:11:30,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1301, Unknown=1, NotChecked=0, Total=1482 [2022-12-13 09:11:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:30,268 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:11:30,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.615384615384615) internal successors, (219), 39 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:11:30,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:30,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:30,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-12-13 09:11:30,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:33,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:33,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 09:11:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 09:11:33,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 09:11:33,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:11:33,866 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 09:11:33,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:11:33,867 INFO L85 PathProgramCache]: Analyzing trace with hash -5251251, now seen corresponding path program 2 times [2022-12-13 09:11:33,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:11:33,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076692771] [2022-12-13 09:11:33,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:11:33,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:11:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:11:34,741 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 09:11:34,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:11:34,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076692771] [2022-12-13 09:11:34,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076692771] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:11:34,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376077153] [2022-12-13 09:11:34,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 09:11:34,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:11:34,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:11:34,742 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:11:34,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 09:11:35,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 09:11:35,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:11:35,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-13 09:11:35,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:11:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:11:36,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:11:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:11:37,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376077153] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:11:37,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:11:37,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25, 23] total 59 [2022-12-13 09:11:37,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870445754] [2022-12-13 09:11:37,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:11:37,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-12-13 09:11:37,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:11:37,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-12-13 09:11:37,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=3144, Unknown=0, NotChecked=0, Total=3422 [2022-12-13 09:11:37,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:37,364 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:11:37,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 4.220338983050848) internal successors, (249), 59 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:11:37,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:37,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:37,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-12-13 09:11:37,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-12-13 09:11:37,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:41,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 09:11:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 09:11:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 09:11:41,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 09:11:41,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:11:41,854 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 09:11:41,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:11:41,856 INFO L85 PathProgramCache]: Analyzing trace with hash 471626198, now seen corresponding path program 3 times [2022-12-13 09:11:41,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:11:41,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035228688] [2022-12-13 09:11:41,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:11:41,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:11:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:11:42,056 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 30 proven. 58 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 09:11:42,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:11:42,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035228688] [2022-12-13 09:11:42,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035228688] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:11:42,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153634763] [2022-12-13 09:11:42,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 09:11:42,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:11:42,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:11:42,059 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:11:42,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 09:11:42,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 09:11:42,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:11:42,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 09:11:42,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:11:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-12-13 09:11:42,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:11:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 1 proven. 41 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-12-13 09:11:42,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153634763] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:11:42,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:11:42,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 29 [2022-12-13 09:11:42,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703642613] [2022-12-13 09:11:42,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:11:42,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-13 09:11:42,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:11:42,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-13 09:11:42,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-12-13 09:11:42,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:42,614 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:11:42,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.96551724137931) internal successors, (260), 29 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:11:42,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:42,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:42,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-12-13 09:11:42,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-12-13 09:11:42,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 09:11:42,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 09:11:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 09:11:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 09:11:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-13 09:11:43,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 09:11:43,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 09:11:43,998 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 09:11:43,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:11:44,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1219565284, now seen corresponding path program 4 times [2022-12-13 09:11:44,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:11:44,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893706151] [2022-12-13 09:11:44,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:11:44,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:11:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:11:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 30 proven. 139 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 09:11:44,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:11:44,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893706151] [2022-12-13 09:11:44,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893706151] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:11:44,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623738785] [2022-12-13 09:11:44,234 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 09:11:44,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:11:44,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:11:44,235 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:11:44,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 09:11:44,297 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 09:11:44,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:11:44,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 09:11:44,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:11:44,475 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 53 proven. 116 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 09:11:44,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:11:44,629 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 31 proven. 138 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 09:11:44,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623738785] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:11:44,629 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:11:44,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 28 [2022-12-13 09:11:44,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104308498] [2022-12-13 09:11:44,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:11:44,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 09:11:44,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:11:44,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 09:11:44,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=631, Unknown=0, NotChecked=0, Total=756 [2022-12-13 09:11:44,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:44,631 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:11:44,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.678571428571429) internal successors, (187), 28 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:11:44,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:44,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:44,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-12-13 09:11:44,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-12-13 09:11:44,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 09:11:44,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-12-13 09:11:44,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:11:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 09:11:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 09:11:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 09:11:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 09:11:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-13 09:11:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-13 09:11:44,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 09:11:45,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:11:45,157 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 09:11:45,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:11:45,157 INFO L85 PathProgramCache]: Analyzing trace with hash -26153945, now seen corresponding path program 5 times [2022-12-13 09:11:45,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:11:45,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986821369] [2022-12-13 09:11:45,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:11:45,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:11:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:11:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:11:48,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:11:48,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986821369] [2022-12-13 09:11:48,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986821369] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:11:48,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528447376] [2022-12-13 09:11:48,881 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 09:11:48,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:11:48,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:11:48,882 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:11:48,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f8736d-657c-4e24-bb90-8a043364f38e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 09:11:49,001 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-12-13 09:11:49,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:11:49,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 66 conjunts are in the unsatisfiable core [2022-12-13 09:11:49,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:11:53,304 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:11:53,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:23:06,886 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~j1~0 1)) (.cse3 (+ c_~j1~0 2)) (.cse0 (* 4294967296 (div (+ 6 c_~k1~0) 4294967296)))) (and (forall ((~m~0 Int)) (or (let ((.cse1 (* 2 ~m~0))) (< (+ .cse0 c_~k2~0 .cse1) (+ 7 c_~k1~0 (* (div (+ c_~k2~0 .cse1) 4294967296) 4294967296)))) (not (< .cse2 ~m~0)) (< .cse3 ~m~0))) (forall ((~m~0 Int)) (or (not (< .cse2 ~m~0)) (< .cse3 ~m~0) (let ((.cse4 (* 2 ~m~0))) (<= (+ 6 c_~k1~0 (* (div (+ c_~k2~0 .cse4) 4294967296) 4294967296)) (+ .cse0 c_~k2~0 .cse4))))))) is different from false [2022-12-13 09:25:55,047 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (* 4294967296 (div (+ 6 c_~k1~0) 4294967296))) (.cse0 (+ c_~j1~0 3)) (.cse1 (+ c_~j1~0 2))) (and (forall ((~m~0 Int)) (or (< .cse0 ~m~0) (not (< .cse1 ~m~0)) (let ((.cse2 (* 2 ~m~0))) (<= (+ 6 c_~k1~0 (* (div (+ c_~k2~0 .cse2) 4294967296) 4294967296)) (+ .cse3 c_~k2~0 .cse2))))) (forall ((~m~0 Int)) (or (let ((.cse4 (* 2 ~m~0))) (< (+ .cse3 c_~k2~0 .cse4) (+ 7 c_~k1~0 (* (div (+ c_~k2~0 .cse4) 4294967296) 4294967296)))) (< .cse0 ~m~0) (not (< .cse1 ~m~0)))))) is different from false