./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:54:55,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:54:55,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:54:55,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:54:55,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:54:55,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:54:55,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:54:55,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:54:55,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:54:55,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:54:55,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:54:55,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:54:55,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:54:55,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:54:55,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:54:55,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:54:55,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:54:55,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:54:55,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:54:55,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:54:55,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:54:55,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:54:55,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:54:55,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:54:55,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:54:55,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:54:55,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:54:55,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:54:55,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:54:55,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:54:55,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:54:55,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:54:55,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:54:55,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:54:55,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:54:55,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:54:55,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:54:55,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:54:55,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:54:55,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:54:55,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:54:55,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:54:55,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:54:55,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:54:55,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:54:55,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:54:55,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:54:55,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:54:55,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:54:55,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:54:55,192 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:54:55,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:54:55,192 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:54:55,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:54:55,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:54:55,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:54:55,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:54:55,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:54:55,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:54:55,194 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:54:55,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:54:55,195 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:54:55,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:54:55,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:54:55,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:54:55,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:54:55,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:54:55,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:54:55,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:54:55,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:54:55,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:54:55,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:54:55,198 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:54:55,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:54:55,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:54:55,199 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_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804a6f1d000a9eac5cab22029525644887c7b13b33bf8b82b475e09952d467ca [2022-11-18 19:54:55,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:54:55,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:54:55,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:54:55,592 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:54:55,593 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:54:55,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2022-11-18 19:54:55,699 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/data/9ea942aad/3c8899d495e54df7b88eeaf2f509c1f2/FLAG0b23d44b3 [2022-11-18 19:54:56,388 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:54:56,389 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2022-11-18 19:54:56,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/data/9ea942aad/3c8899d495e54df7b88eeaf2f509c1f2/FLAG0b23d44b3 [2022-11-18 19:54:56,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/data/9ea942aad/3c8899d495e54df7b88eeaf2f509c1f2 [2022-11-18 19:54:56,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:54:56,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:54:56,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:54:56,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:54:56,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:54:56,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:54:56" (1/1) ... [2022-11-18 19:54:56,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f5b4b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:56, skipping insertion in model container [2022-11-18 19:54:56,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:54:56" (1/1) ... [2022-11-18 19:54:56,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:54:56,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:54:57,047 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_b568b65c-3c36-4c6e-a45a-0501837c3983/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c[4837,4850] [2022-11-18 19:54:57,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:54:57,064 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:54:57,106 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_b568b65c-3c36-4c6e-a45a-0501837c3983/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c[4837,4850] [2022-11-18 19:54:57,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:54:57,126 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:54:57,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57 WrapperNode [2022-11-18 19:54:57,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:54:57,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:54:57,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:54:57,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:54:57,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,211 INFO L138 Inliner]: procedures = 26, calls = 115, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 318 [2022-11-18 19:54:57,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:54:57,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:54:57,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:54:57,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:54:57,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:54:57,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:54:57,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:54:57,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:54:57,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (1/1) ... [2022-11-18 19:54:57,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:54:57,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:54:57,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:54:57,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b568b65c-3c36-4c6e-a45a-0501837c3983/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:54:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:54:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:54:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:54:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:54:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:54:57,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:54:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:54:57,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:54:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 19:54:57,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 19:54:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 19:54:57,360 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 19:54:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:54:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-18 19:54:57,360 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-18 19:54:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-18 19:54:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-18 19:54:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-11-18 19:54:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-11-18 19:54:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:54:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:54:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:54:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:54:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:54:57,365 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:54:57,560 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:54:57,563 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:54:58,265 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:54:58,426 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:54:58,426 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:54:58,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:58 BoogieIcfgContainer [2022-11-18 19:54:58,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:54:58,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:54:58,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:54:58,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:54:58,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:54:56" (1/3) ... [2022-11-18 19:54:58,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6c25bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:54:58, skipping insertion in model container [2022-11-18 19:54:58,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:57" (2/3) ... [2022-11-18 19:54:58,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6c25bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:54:58, skipping insertion in model container [2022-11-18 19:54:58,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:58" (3/3) ... [2022-11-18 19:54:58,443 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2022-11-18 19:54:58,456 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:54:58,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:54:58,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:54:58,472 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:54:58,689 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-11-18 19:54:58,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 211 transitions, 478 flow [2022-11-18 19:54:58,897 INFO L130 PetriNetUnfolder]: 2/204 cut-off events. [2022-11-18 19:54:58,897 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 19:54:58,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 204 events. 2/204 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 158. Up to 2 conditions per place. [2022-11-18 19:54:58,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 211 transitions, 478 flow [2022-11-18 19:54:58,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 205 places, 185 transitions, 412 flow [2022-11-18 19:54:58,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:54:58,932 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@77e90991, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:54:58,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 19:54:58,998 INFO L130 PetriNetUnfolder]: 2/184 cut-off events. [2022-11-18 19:54:58,998 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 19:54:58,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:58,999 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:59,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-11-18 19:54:59,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:59,007 INFO L85 PathProgramCache]: Analyzing trace with hash 697192202, now seen corresponding path program 1 times [2022-11-18 19:54:59,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:59,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178312020] [2022-11-18 19:54:59,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:59,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:03,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:03,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:03,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178312020] [2022-11-18 19:55:03,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178312020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:03,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:03,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:55:03,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632559378] [2022-11-18 19:55:03,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:03,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:55:03,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:03,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:55:03,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:55:03,659 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 211 [2022-11-18 19:55:03,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 185 transitions, 412 flow. Second operand has 10 states, 10 states have (on average 156.5) internal successors, (1565), 10 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:55:03,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:55:03,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 211 [2022-11-18 19:55:03,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand