./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ --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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --- 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-dbf71c6-m [2022-10-17 10:56:07,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:56:07,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:56:07,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:56:07,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:56:07,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:56:07,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:56:07,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:56:07,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:56:07,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:56:07,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:56:07,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:56:07,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:56:07,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:56:07,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:56:07,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:56:07,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:56:07,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:56:07,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:56:07,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:56:07,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:56:07,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:56:07,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:56:07,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:56:07,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:56:07,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:56:07,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:56:07,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:56:07,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:56:07,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:56:07,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:56:07,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:56:07,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:56:07,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:56:07,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:56:07,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:56:07,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:56:07,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:56:07,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:56:07,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:56:07,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:56:07,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:56:07,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:56:07,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:56:07,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:56:07,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:56:07,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:56:07,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:56:07,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:56:07,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:56:07,313 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:56:07,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:56:07,314 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:56:07,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:56:07,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:56:07,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:56:07,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:56:07,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:56:07,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:56:07,316 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:56:07,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:56:07,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:56:07,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:56:07,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:56:07,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:56:07,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:56:07,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:07,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:56:07,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:56:07,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:56:07,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:56:07,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:56:07,319 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:56:07,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:56:07,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:56:07,320 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_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 [2022-10-17 10:56:07,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:56:07,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:56:07,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:56:07,676 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:56:07,677 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:56:07,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-10-17 10:56:07,751 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/data/a2cf6f5de/9b95e8b000eb4f119670ee8362c37853/FLAGab3cedc0a [2022-10-17 10:56:08,224 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:56:08,225 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-10-17 10:56:08,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/data/a2cf6f5de/9b95e8b000eb4f119670ee8362c37853/FLAGab3cedc0a [2022-10-17 10:56:08,588 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/data/a2cf6f5de/9b95e8b000eb4f119670ee8362c37853 [2022-10-17 10:56:08,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:56:08,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:56:08,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:08,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:56:08,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:56:08,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:08" (1/1) ... [2022-10-17 10:56:08,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b89d605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:08, skipping insertion in model container [2022-10-17 10:56:08,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:08" (1/1) ... [2022-10-17 10:56:08,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:56:08,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:56:08,959 WARN L230 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_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-10-17 10:56:08,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:08,979 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:56:09,034 WARN L230 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_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-10-17 10:56:09,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:09,050 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:56:09,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09 WrapperNode [2022-10-17 10:56:09,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:09,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:09,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:56:09,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:56:09,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,113 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2022-10-17 10:56:09,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:09,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:56:09,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:56:09,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:56:09,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:56:09,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:56:09,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:56:09,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:56:09,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (1/1) ... [2022-10-17 10:56:09,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:09,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:09,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:09,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dfd8eeb-cf46-4b2c-a277-2cbd7e0243b9/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:56:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:56:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-10-17 10:56:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-10-17 10:56:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-10-17 10:56:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-10-17 10:56:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-10-17 10:56:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-10-17 10:56:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-10-17 10:56:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-10-17 10:56:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:56:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-10-17 10:56:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-10-17 10:56:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:56:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:56:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:56:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:56:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:56:09,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:56:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:56:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:56:09,265 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:56:09,370 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:56:09,372 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:56:09,775 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:56:09,910 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:56:09,910 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:56:09,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:56:09 BoogieIcfgContainer [2022-10-17 10:56:09,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:56:09,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:56:09,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:56:09,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:56:09,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:56:08" (1/3) ... [2022-10-17 10:56:09,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51838b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:56:09, skipping insertion in model container [2022-10-17 10:56:09,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:09" (2/3) ... [2022-10-17 10:56:09,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51838b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:56:09, skipping insertion in model container [2022-10-17 10:56:09,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:56:09" (3/3) ... [2022-10-17 10:56:09,933 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-10-17 10:56:09,942 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:56:09,954 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:56:09,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:56:09,955 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:56:10,114 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-10-17 10:56:10,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 165 transitions, 370 flow [2022-10-17 10:56:10,293 INFO L130 PetriNetUnfolder]: 2/160 cut-off events. [2022-10-17 10:56:10,294 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-10-17 10:56:10,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 160 events. 2/160 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2022-10-17 10:56:10,297 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 165 transitions, 370 flow [2022-10-17 10:56:10,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 145 transitions, 320 flow [2022-10-17 10:56:10,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:56:10,323 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;@2e6eaf82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:56:10,323 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-17 10:56:10,373 INFO L130 PetriNetUnfolder]: 2/144 cut-off events. [2022-10-17 10:56:10,373 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-10-17 10:56:10,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:56:10,374 INFO L208 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] [2022-10-17 10:56:10,375 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 3 more)] === [2022-10-17 10:56:10,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:10,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2076689551, now seen corresponding path program 1 times [2022-10-17 10:56:10,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:10,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867215768] [2022-10-17 10:56:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:10,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:12,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:12,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:12,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867215768] [2022-10-17 10:56:12,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867215768] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:56:12,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:56:12,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-17 10:56:12,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712329399] [2022-10-17 10:56:12,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:56:12,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-17 10:56:12,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:56:12,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 10:56:12,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:56:12,967 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 165 [2022-10-17 10:56:12,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 145 transitions, 320 flow. Second operand has 10 states, 10 states have (on average 121.3) internal successors, (1213), 10 states have internal predecessors, (1213), 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) [2022-10-17 10:56:12,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:56:12,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 165 [2022-10-17 10:56:12,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:56:21,088 INFO L130 PetriNetUnfolder]: 24026/38319 cut-off events. [2022-10-17 10:56:21,088 INFO L131 PetriNetUnfolder]: For 5728/5728 co-relation queries the response was YES. [2022-10-17 10:56:21,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74568 conditions, 38319 events. 24026/38319 cut-off events. For 5728/5728 co-relation queries the response was YES. Maximal size of possible extension queue 1578. Compared 304807 event pairs, 13472 based on Foata normal form. 3/37752 useless extension candidates. Maximal degree in co-relation 59941. Up to 15956 conditions per place. [2022-10-17 10:56:21,479 INFO L137 encePairwiseOnDemand]: 147/165 looper letters, 85 selfloop transitions, 15 changer transitions 13/211 dead transitions. [2022-10-17 10:56:21,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 211 transitions, 723 flow [2022-10-17 10:56:21,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:56:21,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-10-17 10:56:21,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1404 transitions. [2022-10-17 10:56:21,507 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7735537190082644 [2022-10-17 10:56:21,508 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1404 transitions. [2022-10-17 10:56:21,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1404 transitions. [2022-10-17 10:56:21,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:56:21,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1404 transitions. [2022-10-17 10:56:21,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 127.63636363636364) internal successors, (1404), 11 states have internal predecessors, (1404), 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) [2022-10-17 10:56:21,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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) [2022-10-17 10:56:21,539 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 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) [2022-10-17 10:56:21,541 INFO L175 Difference]: Start difference. First operand has 159 places, 145 transitions, 320 flow. Second operand 11 states and 1404 transitions. [2022-10-17 10:56:21,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 211 transitions, 723 flow [2022-10-17 10:56:21,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 211 transitions, 673 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-10-17 10:56:21,723 INFO L231 Difference]: Finished difference. Result has 164 places, 150 transitions, 382 flow [2022-10-17 10:56:21,725 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=382, PETRI_PLACES=164, PETRI_TRANSITIONS=150} [2022-10-17 10:56:21,729 INFO L287 CegarLoopForPetriNet]: 159 programPoint places, 5 predicate places. [2022-10-17 10:56:21,730 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 150 transitions, 382 flow [2022-10-17 10:56:21,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.3) internal successors, (1213), 10 states have internal predecessors, (1213), 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) [2022-10-17 10:56:21,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:56:21,733 INFO L208 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] [2022-10-17 10:56:21,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:56:21,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-10-17 10:56:21,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:21,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2057670669, now seen corresponding path program 2 times [2022-10-17 10:56:21,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:21,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042939536] [2022-10-17 10:56:21,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:21,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:23,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:23,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042939536] [2022-10-17 10:56:23,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042939536] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:56:23,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:56:23,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-17 10:56:23,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895944552] [2022-10-17 10:56:23,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:56:23,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-17 10:56:23,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:56:23,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 10:56:23,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:56:23,228 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 165 [2022-10-17 10:56:23,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 150 transitions, 382 flow. Second operand has 10 states, 10 states have (on average 121.3) internal successors, (1213), 10 states have internal predecessors, (1213), 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) [2022-10-17 10:56:23,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:56:23,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 165 [2022-10-17 10:56:23,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:56:28,416 INFO L130 PetriNetUnfolder]: 23366/36830 cut-off events. [2022-10-17 10:56:28,417 INFO L131 PetriNetUnfolder]: For 14497/14528 co-relation queries the response was YES. [2022-10-17 10:56:28,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83829 conditions, 36830 events. 23366/36830 cut-off events. For 14497/14528 co-relation queries the response was YES. Maximal size of possible extension queue 1524. Compared 280950 event pairs, 14203 based on Foata normal form. 1/35784 useless extension candidates. Maximal degree in co-relation 83816. Up to 20833 conditions per place. [2022-10-17 10:56:28,723 INFO L137 encePairwiseOnDemand]: 152/165 looper letters, 56 selfloop transitions, 13 changer transitions 47/214 dead transitions. [2022-10-17 10:56:28,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 214 transitions, 812 flow [2022-10-17 10:56:28,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:56:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-10-17 10:56:28,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1279 transitions. [2022-10-17 10:56:28,730 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7751515151515151 [2022-10-17 10:56:28,730 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1279 transitions. [2022-10-17 10:56:28,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1279 transitions. [2022-10-17 10:56:28,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:56:28,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1279 transitions. [2022-10-17 10:56:28,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 127.9) internal successors, (1279), 10 states have internal predecessors, (1279), 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) [2022-10-17 10:56:28,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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) [2022-10-17 10:56:28,743 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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) [2022-10-17 10:56:28,743 INFO L175 Difference]: Start difference. First operand has 164 places, 150 transitions, 382 flow. Second operand 10 states and 1279 transitions. [2022-10-17 10:56:28,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 214 transitions, 812 flow [2022-10-17 10:56:28,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 214 transitions, 785 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-10-17 10:56:28,757 INFO L231 Difference]: Finished difference. Result has 166 places, 154 transitions, 442 flow [2022-10-17 10:56:28,758 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=442, PETRI_PLACES=166, PETRI_TRANSITIONS=154} [2022-10-17 10:56:28,759 INFO L287 CegarLoopForPetriNet]: 159 programPoint places, 7 predicate places. [2022-10-17 10:56:28,759 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 154 transitions, 442 flow [2022-10-17 10:56:28,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.3) internal successors, (1213), 10 states have internal predecessors, (1213), 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) [2022-10-17 10:56:28,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:56:28,761 INFO L208 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] [2022-10-17 10:56:28,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:56:28,762 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-10-17 10:56:28,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:28,765 INFO L85 PathProgramCache]: Analyzing trace with hash -536900385, now seen corresponding path program 3 times [2022-10-17 10:56:28,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:28,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530280328] [2022-10-17 10:56:28,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:28,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:29,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:29,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530280328] [2022-10-17 10:56:29,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530280328] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:56:29,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:56:29,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:56:29,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117473631] [2022-10-17 10:56:29,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:56:29,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:56:29,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:56:29,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:56:29,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:56:29,372 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-10-17 10:56:29,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 154 transitions, 442 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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) [2022-10-17 10:56:29,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:56:29,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-10-17 10:56:29,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:56:34,317 INFO L130 PetriNetUnfolder]: 16213/32191 cut-off events. [2022-10-17 10:56:34,318 INFO L131 PetriNetUnfolder]: For 14164/18107 co-relation queries the response was YES. [2022-10-17 10:56:34,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66599 conditions, 32191 events. 16213/32191 cut-off events. For 14164/18107 co-relation queries the response was YES. Maximal size of possible extension queue 1940. Compared 331971 event pairs, 4674 based on Foata normal form. 470/31303 useless extension candidates. Maximal degree in co-relation 66584. Up to 6857 conditions per place. [2022-10-17 10:56:34,732 INFO L137 encePairwiseOnDemand]: 151/165 looper letters, 76 selfloop transitions, 23 changer transitions 0/214 dead transitions. [2022-10-17 10:56:34,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 214 transitions, 778 flow [2022-10-17 10:56:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:56:34,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-10-17 10:56:34,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 947 transitions. [2022-10-17 10:56:34,738 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8199134199134199 [2022-10-17 10:56:34,739 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 947 transitions. [2022-10-17 10:56:34,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 947 transitions. [2022-10-17 10:56:34,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:56:34,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 947 transitions. [2022-10-17 10:56:34,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 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) [2022-10-17 10:56:34,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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) [2022-10-17 10:56:34,749 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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) [2022-10-17 10:56:34,749 INFO L175 Difference]: Start difference. First operand has 166 places, 154 transitions, 442 flow. Second operand 7 states and 947 transitions. [2022-10-17 10:56:34,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 214 transitions, 778 flow [2022-10-17 10:56:35,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 214 transitions, 731 flow, removed 15 selfloop flow, removed 8 redundant places. [2022-10-17 10:56:35,046 INFO L231 Difference]: Finished difference. Result has 162 places, 174 transitions, 528 flow [2022-10-17 10:56:35,046 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=528, PETRI_PLACES=162, PETRI_TRANSITIONS=174} [2022-10-17 10:56:35,049 INFO L287 CegarLoopForPetriNet]: 159 programPoint places, 3 predicate places. [2022-10-17 10:56:35,049 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 174 transitions, 528 flow [2022-10-17 10:56:35,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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) [2022-10-17 10:56:35,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:56:35,051 INFO L208 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] [2022-10-17 10:56:35,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:56:35,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-10-17 10:56:35,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:35,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1585257671, now seen corresponding path program 4 times [2022-10-17 10:56:35,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:35,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303534320] [2022-10-17 10:56:35,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:35,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:35,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:56:35,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:35,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303534320] [2022-10-17 10:56:35,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303534320] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:56:35,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:56:35,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:56:35,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530809061] [2022-10-17 10:56:35,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:56:35,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:56:35,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:56:35,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:56:35,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:56:35,484 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-10-17 10:56:35,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 174 transitions, 528 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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) [2022-10-17 10:56:35,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:56:35,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-10-17 10:56:35,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand