./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k --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 753355d7d8c08568df49ed9a7977f84d185e0dbf04984bcb7908b11aa84a04b9 --- 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 01:52:12,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 01:52:12,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 01:52:12,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 01:52:12,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 01:52:12,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 01:52:12,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 01:52:12,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 01:52:12,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 01:52:12,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 01:52:12,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 01:52:12,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 01:52:12,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 01:52:12,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 01:52:12,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 01:52:12,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 01:52:12,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 01:52:12,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 01:52:12,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 01:52:12,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 01:52:12,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 01:52:12,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 01:52:12,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 01:52:12,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 01:52:12,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 01:52:12,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 01:52:12,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 01:52:12,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 01:52:12,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 01:52:12,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 01:52:12,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 01:52:12,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 01:52:12,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 01:52:12,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 01:52:12,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 01:52:12,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 01:52:12,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 01:52:12,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 01:52:12,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 01:52:12,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 01:52:12,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 01:52:12,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-18 01:52:12,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 01:52:12,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 01:52:12,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 01:52:12,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 01:52:12,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 01:52:12,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 01:52:12,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 01:52:12,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 01:52:12,238 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 01:52:12,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 01:52:12,239 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 01:52:12,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 01:52:12,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 01:52:12,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 01:52:12,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 01:52:12,240 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 01:52:12,241 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 01:52:12,241 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 01:52:12,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 01:52:12,241 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 01:52:12,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 01:52:12,242 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 01:52:12,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 01:52:12,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 01:52:12,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 01:52:12,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 01:52:12,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 01:52:12,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 01:52:12,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 01:52:12,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 01:52:12,244 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 01:52:12,244 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-18 01:52:12,244 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-18 01:52:12,245 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-18 01:52:12,245 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-18 01:52:12,245 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_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 753355d7d8c08568df49ed9a7977f84d185e0dbf04984bcb7908b11aa84a04b9 [2022-11-18 01:52:12,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 01:52:12,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 01:52:12,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 01:52:12,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 01:52:12,602 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 01:52:12,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2022-11-18 01:52:12,683 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/data/1aeeff0dd/7b82749f690245b184d2acbeccdf6592/FLAG9384e6cf1 [2022-11-18 01:52:13,242 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 01:52:13,248 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2022-11-18 01:52:13,258 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/data/1aeeff0dd/7b82749f690245b184d2acbeccdf6592/FLAG9384e6cf1 [2022-11-18 01:52:13,595 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/data/1aeeff0dd/7b82749f690245b184d2acbeccdf6592 [2022-11-18 01:52:13,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 01:52:13,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 01:52:13,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 01:52:13,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 01:52:13,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 01:52:13,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:13,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e7fbd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13, skipping insertion in model container [2022-11-18 01:52:13,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:13,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 01:52:13,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 01:52:13,929 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_ad0baabd-5d03-4f2e-879d-7db64176509d/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c[2625,2638] [2022-11-18 01:52:13,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 01:52:13,942 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 01:52:13,968 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_ad0baabd-5d03-4f2e-879d-7db64176509d/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c[2625,2638] [2022-11-18 01:52:13,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 01:52:13,984 INFO L208 MainTranslator]: Completed translation [2022-11-18 01:52:13,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13 WrapperNode [2022-11-18 01:52:13,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 01:52:13,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 01:52:13,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 01:52:13,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 01:52:13,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,023 INFO L138 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 125 [2022-11-18 01:52:14,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 01:52:14,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 01:52:14,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 01:52:14,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 01:52:14,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,051 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 01:52:14,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 01:52:14,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 01:52:14,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 01:52:14,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (1/1) ... [2022-11-18 01:52:14,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 01:52:14,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:14,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 01:52:14,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 01:52:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 01:52:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 01:52:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 01:52:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 01:52:14,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 01:52:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 01:52:14,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 01:52:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 01:52:14,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 01:52:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 01:52:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-18 01:52:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-18 01:52:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-18 01:52:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-18 01:52:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 01:52:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 01:52:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 01:52:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 01:52:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 01:52:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 01:52:14,171 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 01:52:14,328 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 01:52:14,330 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 01:52:14,690 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 01:52:14,699 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 01:52:14,699 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 01:52:14,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:52:14 BoogieIcfgContainer [2022-11-18 01:52:14,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 01:52:14,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 01:52:14,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 01:52:14,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 01:52:14,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:52:13" (1/3) ... [2022-11-18 01:52:14,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef8a8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:52:14, skipping insertion in model container [2022-11-18 01:52:14,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:52:13" (2/3) ... [2022-11-18 01:52:14,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef8a8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:52:14, skipping insertion in model container [2022-11-18 01:52:14,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:52:14" (3/3) ... [2022-11-18 01:52:14,717 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2022-11-18 01:52:14,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 01:52:14,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-18 01:52:14,739 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 01:52:14,929 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-11-18 01:52:14,994 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:52:14,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:52:14,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:15,003 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:52:15,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-18 01:52:15,075 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:52:15,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:52:15,102 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;@6d8a2fd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:52:15,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-11-18 01:52:15,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-18 01:52:15,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:15,780 INFO L85 PathProgramCache]: Analyzing trace with hash 908700145, now seen corresponding path program 1 times [2022-11-18 01:52:15,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:15,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582649029] [2022-11-18 01:52:15,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:15,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:16,177 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 01:52:16,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:16,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582649029] [2022-11-18 01:52:16,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582649029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:16,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:16,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:52:16,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341978993] [2022-11-18 01:52:16,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:16,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:52:16,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:16,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:52:16,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:52:16,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:16,228 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:16,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 01:52:16,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:16,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 01:52:16,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-18 01:52:16,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:16,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1472880691, now seen corresponding path program 1 times [2022-11-18 01:52:16,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:16,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308245404] [2022-11-18 01:52:16,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:16,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:18,209 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 01:52:18,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:18,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308245404] [2022-11-18 01:52:18,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308245404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:18,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:18,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 01:52:18,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353207945] [2022-11-18 01:52:18,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:18,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 01:52:18,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:18,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 01:52:18,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 01:52:18,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:18,215 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:18,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 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 01:52:18,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:18,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:18,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:18,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 01:52:18,851 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-18 01:52:18,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:18,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1400323249, now seen corresponding path program 1 times [2022-11-18 01:52:18,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:18,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183514679] [2022-11-18 01:52:18,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:18,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:19,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:19,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:19,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183514679] [2022-11-18 01:52:19,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183514679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:19,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:19,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 01:52:19,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185910244] [2022-11-18 01:52:19,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:19,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 01:52:19,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:19,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 01:52:19,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-18 01:52:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:19,894 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:19,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 01:52:19,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:19,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:19,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:20,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:20,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 01:52:20,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-18 01:52:20,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:20,168 INFO L85 PathProgramCache]: Analyzing trace with hash 687120563, now seen corresponding path program 1 times [2022-11-18 01:52:20,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:20,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173101049] [2022-11-18 01:52:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:20,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:20,260 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 01:52:20,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:20,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173101049] [2022-11-18 01:52:20,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173101049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:20,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:20,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:52:20,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141025033] [2022-11-18 01:52:20,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:20,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:52:20,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:20,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:52:20,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:52:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,265 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:20,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 01:52:20,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:20,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:20,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:20,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 01:52:20,421 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-18 01:52:20,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:20,422 INFO L85 PathProgramCache]: Analyzing trace with hash 687120564, now seen corresponding path program 1 times [2022-11-18 01:52:20,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:20,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355026575] [2022-11-18 01:52:20,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:20,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:20,561 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 01:52:20,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:20,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355026575] [2022-11-18 01:52:20,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355026575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:20,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:20,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:52:20,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385683782] [2022-11-18 01:52:20,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:20,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 01:52:20,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:20,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 01:52:20,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 01:52:20,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,572 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:20,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 37.666666666666664) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 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 01:52:20,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:20,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:20,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:20,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:20,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 01:52:20,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:20,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:20,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 01:52:20,809 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-18 01:52:20,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:20,810 INFO L85 PathProgramCache]: Analyzing trace with hash 813349135, now seen corresponding path program 1 times [2022-11-18 01:52:20,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:20,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624675972] [2022-11-18 01:52:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:20,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:21,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:21,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624675972] [2022-11-18 01:52:21,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624675972] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:52:21,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665472615] [2022-11-18 01:52:21,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:21,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:52:21,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:21,646 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:52:21,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 01:52:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:21,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 01:52:21,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:52:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:22,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:52:22,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:22,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665472615] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:52:22,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:52:22,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-11-18 01:52:22,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477406381] [2022-11-18 01:52:22,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:52:22,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 01:52:22,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:22,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 01:52:22,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-18 01:52:22,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:22,988 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:22,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.285714285714285) internal successors, (270), 14 states have internal predecessors, (270), 0 states have call successors, (0), 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 01:52:22,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:22,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:22,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-18 01:52:22,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:22,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:22,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:24,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:24,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:24,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 01:52:24,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:24,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:24,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 01:52:24,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 01:52:24,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 01:52:24,214 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-18 01:52:24,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:24,214 INFO L85 PathProgramCache]: Analyzing trace with hash 938251281, now seen corresponding path program 1 times [2022-11-18 01:52:24,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:24,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793289255] [2022-11-18 01:52:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:24,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:26,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:26,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793289255] [2022-11-18 01:52:26,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793289255] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:52:26,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291940021] [2022-11-18 01:52:26,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:26,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:52:26,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:26,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:52:26,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 01:52:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:26,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 68 conjunts are in the unsatisfiable core [2022-11-18 01:52:26,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:52:30,218 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 01:52:30,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 43 treesize of output 151 [2022-11-18 01:52:57,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-18 01:53:36,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:53:36,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:54:59,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-18 01:57:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:57:13,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291940021] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:57:13,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:57:13,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 33, 42] total 78 [2022-11-18 01:57:13,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130428799] [2022-11-18 01:57:13,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:57:13,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-11-18 01:57:13,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:57:13,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-11-18 01:57:13,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1445, Invalid=4501, Unknown=60, NotChecked=0, Total=6006 [2022-11-18 01:57:13,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:57:13,510 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:57:13,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 3.7435897435897436) internal successors, (292), 78 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 01:57:13,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:57:13,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:57:13,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-18 01:57:13,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:57:13,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:57:13,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-11-18 01:57:13,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:57:48,290 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 70 DAG size of output: 41 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:57:50,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:57:52,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:58:13,483 WARN L233 SmtUtils]: Spent 13.55s on a formula simplification. DAG size of input: 83 DAG size of output: 66 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 01:58:14,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 01:58:16,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 01:58:18,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:58:20,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 01:58:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:58:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:58:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 01:58:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:58:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:58:40,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 01:58:40,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-18 01:58:40,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 01:58:41,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:58:41,031 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2022-11-18 01:58:41,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:58:41,032 INFO L85 PathProgramCache]: Analyzing trace with hash -906144171, now seen corresponding path program 2 times [2022-11-18 01:58:41,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:58:41,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54898707] [2022-11-18 01:58:41,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:58:41,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:58:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:58:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:58:44,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:58:44,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54898707] [2022-11-18 01:58:44,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54898707] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:58:44,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231005525] [2022-11-18 01:58:44,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 01:58:44,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:58:44,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:58:44,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:58:44,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad0baabd-5d03-4f2e-879d-7db64176509d/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process