./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN --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 4e4f4f4fe5f72416e0e44275f74b26f9ea6749f134c13c768c7ed2450972cbc3 --- 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-6b4ec56 [2022-11-20 09:28:47,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:47,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:47,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:47,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:47,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:47,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:47,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:47,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:47,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:47,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:47,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:47,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:47,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:47,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:47,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:47,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:47,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:47,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:47,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:47,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:47,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:47,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:47,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:47,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:47,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:47,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:47,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:47,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:47,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:47,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:47,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:47,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:47,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:47,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:47,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:47,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:47,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:47,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:47,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:47,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:47,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 09:28:47,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:47,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:47,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:47,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:47,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:28:47,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:28:47,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:47,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:47,224 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:47,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:47,226 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:28:47,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:28:47,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:28:47,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:47,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:28:47,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:28:47,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:28:47,228 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:28:47,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:47,229 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:47,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:28:47,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:47,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:47,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:28:47,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:47,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:47,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:28:47,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:28:47,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:28:47,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:28:47,234 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:28:47,234 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:28:47,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:28:47,236 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_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e4f4f4fe5f72416e0e44275f74b26f9ea6749f134c13c768c7ed2450972cbc3 [2022-11-20 09:28:47,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:47,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:47,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:47,602 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:47,603 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:47,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-poker-hand-trans.wvr.c [2022-11-20 09:28:50,898 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:28:51,267 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:28:51,268 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/sv-benchmarks/c/weaver/chl-poker-hand-trans.wvr.c [2022-11-20 09:28:51,282 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/data/26d453f07/f1efb48f72df4bd1802f5fe46a4cc1d2/FLAG5e3708369 [2022-11-20 09:28:51,303 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/data/26d453f07/f1efb48f72df4bd1802f5fe46a4cc1d2 [2022-11-20 09:28:51,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:28:51,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:28:51,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:51,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:28:51,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:28:51,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:51,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326fb5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51, skipping insertion in model container [2022-11-20 09:28:51,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:51,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:51,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:28:51,687 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/sv-benchmarks/c/weaver/chl-poker-hand-trans.wvr.c[18874,18887] [2022-11-20 09:28:51,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:51,710 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:28:51,834 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/sv-benchmarks/c/weaver/chl-poker-hand-trans.wvr.c[18874,18887] [2022-11-20 09:28:51,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:51,859 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:28:51,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51 WrapperNode [2022-11-20 09:28:51,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:51,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:51,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:28:51,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:28:51,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:51,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:52,029 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2314 [2022-11-20 09:28:52,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:52,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:28:52,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:28:52,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:28:52,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:52,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:52,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:52,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:52,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:52,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:52,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:52,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:52,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:28:52,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:28:52,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:28:52,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:28:52,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (1/1) ... [2022-11-20 09:28:52,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:52,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:52,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:52,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:28:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:28:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:28:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:28:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:28:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 09:28:52,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 09:28:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 09:28:52,422 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 09:28:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 09:28:52,423 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 09:28:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:28:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 09:28:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 09:28:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:28:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:28:52,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:28:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:28:52,428 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:28:52,746 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:28:52,749 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:28:55,483 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:58,750 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:58,751 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-20 09:28:58,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:58 BoogieIcfgContainer [2022-11-20 09:28:58,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:58,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:28:58,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:28:58,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:28:58,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:51" (1/3) ... [2022-11-20 09:28:58,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6272d526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:58, skipping insertion in model container [2022-11-20 09:28:58,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:51" (2/3) ... [2022-11-20 09:28:58,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6272d526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:58, skipping insertion in model container [2022-11-20 09:28:58,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:58" (3/3) ... [2022-11-20 09:28:58,771 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-trans.wvr.c [2022-11-20 09:28:58,783 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:28:58,794 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:28:58,795 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:28:58,795 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:28:59,261 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 09:28:59,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 671 places, 740 transitions, 1504 flow [2022-11-20 09:28:59,905 INFO L130 PetriNetUnfolder]: 79/737 cut-off events. [2022-11-20 09:28:59,905 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 09:28:59,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 737 events. 79/737 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 780 event pairs, 0 based on Foata normal form. 0/657 useless extension candidates. Maximal degree in co-relation 662. Up to 7 conditions per place. [2022-11-20 09:28:59,916 INFO L82 GeneralOperation]: Start removeDead. Operand has 671 places, 740 transitions, 1504 flow [2022-11-20 09:28:59,931 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 657 places, 726 transitions, 1470 flow [2022-11-20 09:28:59,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:28:59,961 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;@71e138d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:28:59,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 09:29:00,214 INFO L130 PetriNetUnfolder]: 79/725 cut-off events. [2022-11-20 09:29:00,215 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 09:29:00,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:00,217 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:00,218 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 1 more)] === [2022-11-20 09:29:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:00,224 INFO L85 PathProgramCache]: Analyzing trace with hash 528362131, now seen corresponding path program 1 times [2022-11-20 09:29:00,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:00,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766567802] [2022-11-20 09:29:00,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:00,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:01,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:01,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:01,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766567802] [2022-11-20 09:29:01,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766567802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:01,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:01,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:01,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324783665] [2022-11-20 09:29:01,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:01,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 09:29:01,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:01,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 09:29:01,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:29:01,216 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 657 out of 740 [2022-11-20 09:29:01,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 726 transitions, 1470 flow. Second operand has 2 states, 2 states have (on average 669.5) internal successors, (1339), 2 states have internal predecessors, (1339), 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) [2022-11-20 09:29:01,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:01,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 657 of 740 [2022-11-20 09:29:01,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:03,202 INFO L130 PetriNetUnfolder]: 675/1826 cut-off events. [2022-11-20 09:29:03,202 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-20 09:29:03,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2662 conditions, 1826 events. 675/1826 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6908 event pairs, 135 based on Foata normal form. 169/1748 useless extension candidates. Maximal degree in co-relation 1817. Up to 769 conditions per place. [2022-11-20 09:29:03,228 INFO L137 encePairwiseOnDemand]: 697/740 looper letters, 39 selfloop transitions, 0 changer transitions 25/683 dead transitions. [2022-11-20 09:29:03,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 683 transitions, 1462 flow [2022-11-20 09:29:03,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 09:29:03,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 09:29:03,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1396 transitions. [2022-11-20 09:29:03,259 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9432432432432433 [2022-11-20 09:29:03,260 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1396 transitions. [2022-11-20 09:29:03,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1396 transitions. [2022-11-20 09:29:03,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:03,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1396 transitions. [2022-11-20 09:29:03,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 698.0) internal successors, (1396), 2 states have internal predecessors, (1396), 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) [2022-11-20 09:29:03,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 740.0) internal successors, (2220), 3 states have internal predecessors, (2220), 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) [2022-11-20 09:29:03,292 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 740.0) internal successors, (2220), 3 states have internal predecessors, (2220), 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) [2022-11-20 09:29:03,294 INFO L175 Difference]: Start difference. First operand has 657 places, 726 transitions, 1470 flow. Second operand 2 states and 1396 transitions. [2022-11-20 09:29:03,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 683 transitions, 1462 flow [2022-11-20 09:29:03,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 683 transitions, 1450 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 09:29:03,324 INFO L231 Difference]: Finished difference. Result has 652 places, 658 transitions, 1322 flow [2022-11-20 09:29:03,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=1372, PETRI_DIFFERENCE_MINUEND_PLACES=651, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1322, PETRI_PLACES=652, PETRI_TRANSITIONS=658} [2022-11-20 09:29:03,333 INFO L288 CegarLoopForPetriNet]: 657 programPoint places, -5 predicate places. [2022-11-20 09:29:03,333 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 658 transitions, 1322 flow [2022-11-20 09:29:03,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 669.5) internal successors, (1339), 2 states have internal predecessors, (1339), 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) [2022-11-20 09:29:03,335 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:03,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:03,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:29:03,336 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 1 more)] === [2022-11-20 09:29:03,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:03,337 INFO L85 PathProgramCache]: Analyzing trace with hash 840634409, now seen corresponding path program 1 times [2022-11-20 09:29:03,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:03,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566069270] [2022-11-20 09:29:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:03,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:04,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:04,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:04,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566069270] [2022-11-20 09:29:04,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566069270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:04,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:04,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:29:04,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963624659] [2022-11-20 09:29:04,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:04,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:29:04,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:04,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:29:04,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:04,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 740 [2022-11-20 09:29:04,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 658 transitions, 1322 flow. Second operand has 5 states, 5 states have (on average 534.0) internal successors, (2670), 5 states have internal predecessors, (2670), 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) [2022-11-20 09:29:04,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:04,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 740 [2022-11-20 09:29:04,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:06,080 INFO L130 PetriNetUnfolder]: 675/1837 cut-off events. [2022-11-20 09:29:06,080 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-20 09:29:06,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2797 conditions, 1837 events. 675/1837 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6898 event pairs, 135 based on Foata normal form. 0/1615 useless extension candidates. Maximal degree in co-relation 2794. Up to 833 conditions per place. [2022-11-20 09:29:06,102 INFO L137 encePairwiseOnDemand]: 710/740 looper letters, 183 selfloop transitions, 24 changer transitions 0/682 dead transitions. [2022-11-20 09:29:06,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 682 transitions, 1784 flow [2022-11-20 09:29:06,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:29:06,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:29:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2778 transitions. [2022-11-20 09:29:06,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7508108108108108 [2022-11-20 09:29:06,117 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2778 transitions. [2022-11-20 09:29:06,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2778 transitions. [2022-11-20 09:29:06,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:06,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2778 transitions. [2022-11-20 09:29:06,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 555.6) internal successors, (2778), 5 states have internal predecessors, (2778), 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) [2022-11-20 09:29:06,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 740.0) internal successors, (4440), 6 states have internal predecessors, (4440), 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) [2022-11-20 09:29:06,144 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 740.0) internal successors, (4440), 6 states have internal predecessors, (4440), 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) [2022-11-20 09:29:06,144 INFO L175 Difference]: Start difference. First operand has 652 places, 658 transitions, 1322 flow. Second operand 5 states and 2778 transitions. [2022-11-20 09:29:06,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 682 transitions, 1784 flow [2022-11-20 09:29:06,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 682 transitions, 1784 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:29:06,165 INFO L231 Difference]: Finished difference. Result has 632 places, 664 transitions, 1418 flow [2022-11-20 09:29:06,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=1322, PETRI_DIFFERENCE_MINUEND_PLACES=627, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1418, PETRI_PLACES=632, PETRI_TRANSITIONS=664} [2022-11-20 09:29:06,168 INFO L288 CegarLoopForPetriNet]: 657 programPoint places, -25 predicate places. [2022-11-20 09:29:06,168 INFO L495 AbstractCegarLoop]: Abstraction has has 632 places, 664 transitions, 1418 flow [2022-11-20 09:29:06,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 534.0) internal successors, (2670), 5 states have internal predecessors, (2670), 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) [2022-11-20 09:29:06,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:06,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:06,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:29:06,172 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 1 more)] === [2022-11-20 09:29:06,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:06,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1626345566, now seen corresponding path program 1 times [2022-11-20 09:29:06,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:06,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890981245] [2022-11-20 09:29:06,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:06,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,038 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 09:29:07,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:07,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890981245] [2022-11-20 09:29:07,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890981245] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:07,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696185880] [2022-11-20 09:29:07,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:07,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:07,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:07,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:07,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 09:29:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:29:08,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 09:29:08,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:08,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696185880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:08,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:29:08,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-11-20 09:29:08,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112591977] [2022-11-20 09:29:08,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:08,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:29:08,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:08,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:29:08,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:29:08,213 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 740 [2022-11-20 09:29:08,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 664 transitions, 1418 flow. Second operand has 5 states, 5 states have (on average 538.8) internal successors, (2694), 5 states have internal predecessors, (2694), 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) [2022-11-20 09:29:08,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:08,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 740 [2022-11-20 09:29:08,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:09,896 INFO L130 PetriNetUnfolder]: 675/1873 cut-off events. [2022-11-20 09:29:09,897 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-11-20 09:29:09,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2901 conditions, 1873 events. 675/1873 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6830 event pairs, 135 based on Foata normal form. 0/1657 useless extension candidates. Maximal degree in co-relation 2896. Up to 864 conditions per place. [2022-11-20 09:29:09,916 INFO L137 encePairwiseOnDemand]: 708/740 looper letters, 187 selfloop transitions, 26 changer transitions 0/688 dead transitions. [2022-11-20 09:29:09,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 688 transitions, 1892 flow [2022-11-20 09:29:09,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:09,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:29:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3291 transitions. [2022-11-20 09:29:09,924 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7412162162162163 [2022-11-20 09:29:09,924 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3291 transitions. [2022-11-20 09:29:09,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3291 transitions. [2022-11-20 09:29:09,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:09,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3291 transitions. [2022-11-20 09:29:09,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 548.5) internal successors, (3291), 6 states have internal predecessors, (3291), 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) [2022-11-20 09:29:09,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 740.0) internal successors, (5180), 7 states have internal predecessors, (5180), 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) [2022-11-20 09:29:09,948 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 740.0) internal successors, (5180), 7 states have internal predecessors, (5180), 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) [2022-11-20 09:29:09,948 INFO L175 Difference]: Start difference. First operand has 632 places, 664 transitions, 1418 flow. Second operand 6 states and 3291 transitions. [2022-11-20 09:29:09,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 688 transitions, 1892 flow [2022-11-20 09:29:09,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 688 transitions, 1856 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:29:09,964 INFO L231 Difference]: Finished difference. Result has 635 places, 670 transitions, 1482 flow [2022-11-20 09:29:09,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=1382, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1482, PETRI_PLACES=635, PETRI_TRANSITIONS=670} [2022-11-20 09:29:09,967 INFO L288 CegarLoopForPetriNet]: 657 programPoint places, -22 predicate places. [2022-11-20 09:29:09,968 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 670 transitions, 1482 flow [2022-11-20 09:29:09,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 538.8) internal successors, (2694), 5 states have internal predecessors, (2694), 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) [2022-11-20 09:29:09,970 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:09,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:09,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:10,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:10,180 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 1 more)] === [2022-11-20 09:29:10,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:10,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1408300134, now seen corresponding path program 1 times [2022-11-20 09:29:10,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:10,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313966965] [2022-11-20 09:29:10,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:10,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:10,872 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 09:29:10,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:10,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313966965] [2022-11-20 09:29:10,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313966965] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:10,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922782341] [2022-11-20 09:29:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:10,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:10,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:10,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:10,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 09:29:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:11,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:29:11,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:11,907 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 09:29:11,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:12,032 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 09:29:12,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922782341] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:29:12,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:29:12,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-20 09:29:12,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149940159] [2022-11-20 09:29:12,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:29:12,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 09:29:12,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 09:29:12,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:29:12,046 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 740 [2022-11-20 09:29:12,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 670 transitions, 1482 flow. Second operand has 15 states, 15 states have (on average 513.3333333333334) internal successors, (7700), 15 states have internal predecessors, (7700), 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) [2022-11-20 09:29:12,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:12,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 740 [2022-11-20 09:29:12,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:14,744 INFO L130 PetriNetUnfolder]: 675/1939 cut-off events. [2022-11-20 09:29:14,744 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-11-20 09:29:14,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3066 conditions, 1939 events. 675/1939 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6727 event pairs, 135 based on Foata normal form. 18/1747 useless extension candidates. Maximal degree in co-relation 3060. Up to 815 conditions per place. [2022-11-20 09:29:14,760 INFO L137 encePairwiseOnDemand]: 643/740 looper letters, 182 selfloop transitions, 115 changer transitions 0/760 dead transitions. [2022-11-20 09:29:14,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 652 places, 760 transitions, 2268 flow [2022-11-20 09:29:14,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 09:29:14,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 09:29:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 9333 transitions. [2022-11-20 09:29:14,780 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7006756756756757 [2022-11-20 09:29:14,781 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 9333 transitions. [2022-11-20 09:29:14,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 9333 transitions. [2022-11-20 09:29:14,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:14,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 9333 transitions. [2022-11-20 09:29:14,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 518.5) internal successors, (9333), 18 states have internal predecessors, (9333), 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) [2022-11-20 09:29:14,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 740.0) internal successors, (14060), 19 states have internal predecessors, (14060), 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) [2022-11-20 09:29:14,838 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 740.0) internal successors, (14060), 19 states have internal predecessors, (14060), 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) [2022-11-20 09:29:14,838 INFO L175 Difference]: Start difference. First operand has 635 places, 670 transitions, 1482 flow. Second operand 18 states and 9333 transitions. [2022-11-20 09:29:14,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 652 places, 760 transitions, 2268 flow [2022-11-20 09:29:14,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 648 places, 760 transitions, 2228 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:29:14,854 INFO L231 Difference]: Finished difference. Result has 655 places, 724 transitions, 2031 flow [2022-11-20 09:29:14,856 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=1442, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=670, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2031, PETRI_PLACES=655, PETRI_TRANSITIONS=724} [2022-11-20 09:29:14,856 INFO L288 CegarLoopForPetriNet]: 657 programPoint places, -2 predicate places. [2022-11-20 09:29:14,857 INFO L495 AbstractCegarLoop]: Abstraction has has 655 places, 724 transitions, 2031 flow [2022-11-20 09:29:14,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 513.3333333333334) internal successors, (7700), 15 states have internal predecessors, (7700), 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) [2022-11-20 09:29:14,860 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:14,861 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:14,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:15,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:15,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 09:29:15,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:15,077 INFO L85 PathProgramCache]: Analyzing trace with hash 2077723483, now seen corresponding path program 2 times [2022-11-20 09:29:15,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:15,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458927642] [2022-11-20 09:29:15,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:15,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:16,368 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-20 09:29:16,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:16,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458927642] [2022-11-20 09:29:16,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458927642] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:16,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545135354] [2022-11-20 09:29:16,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:29:16,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:16,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:16,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:16,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 09:29:17,348 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 09:29:17,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:29:17,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 09:29:17,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:17,776 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 09:29:17,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 52 [2022-11-20 09:29:17,959 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-11-20 09:29:17,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:17,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545135354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:17,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:29:17,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-20 09:29:17,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96459954] [2022-11-20 09:29:17,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:17,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:29:17,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:17,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:29:17,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-20 09:29:17,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 740 [2022-11-20 09:29:17,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 724 transitions, 2031 flow. Second operand has 7 states, 7 states have (on average 520.1428571428571) internal successors, (3641), 7 states have internal predecessors, (3641), 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) [2022-11-20 09:29:17,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:17,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 740 [2022-11-20 09:29:17,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:21,372 INFO L130 PetriNetUnfolder]: 1624/3547 cut-off events. [2022-11-20 09:29:21,373 INFO L131 PetriNetUnfolder]: For 105/105 co-relation queries the response was YES. [2022-11-20 09:29:21,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5923 conditions, 3547 events. 1624/3547 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 17762 event pairs, 333 based on Foata normal form. 1/3132 useless extension candidates. Maximal degree in co-relation 5910. Up to 1620 conditions per place. [2022-11-20 09:29:21,410 INFO L137 encePairwiseOnDemand]: 731/740 looper letters, 209 selfloop transitions, 6 changer transitions 10/778 dead transitions. [2022-11-20 09:29:21,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 778 transitions, 2598 flow [2022-11-20 09:29:21,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 09:29:21,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 09:29:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4226 transitions. [2022-11-20 09:29:21,423 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7138513513513514 [2022-11-20 09:29:21,423 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4226 transitions. [2022-11-20 09:29:21,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4226 transitions. [2022-11-20 09:29:21,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:21,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4226 transitions. [2022-11-20 09:29:21,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 528.25) internal successors, (4226), 8 states have internal predecessors, (4226), 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) [2022-11-20 09:29:21,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 740.0) internal successors, (6660), 9 states have internal predecessors, (6660), 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) [2022-11-20 09:29:21,478 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 740.0) internal successors, (6660), 9 states have internal predecessors, (6660), 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) [2022-11-20 09:29:21,478 INFO L175 Difference]: Start difference. First operand has 655 places, 724 transitions, 2031 flow. Second operand 8 states and 4226 transitions. [2022-11-20 09:29:21,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 778 transitions, 2598 flow [2022-11-20 09:29:21,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 778 transitions, 2511 flow, removed 18 selfloop flow, removed 6 redundant places. [2022-11-20 09:29:21,515 INFO L231 Difference]: Finished difference. Result has 661 places, 727 transitions, 1983 flow [2022-11-20 09:29:21,532 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=1944, PETRI_DIFFERENCE_MINUEND_PLACES=649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=724, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=719, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1983, PETRI_PLACES=661, PETRI_TRANSITIONS=727} [2022-11-20 09:29:21,533 INFO L288 CegarLoopForPetriNet]: 657 programPoint places, 4 predicate places. [2022-11-20 09:29:21,534 INFO L495 AbstractCegarLoop]: Abstraction has has 661 places, 727 transitions, 1983 flow [2022-11-20 09:29:21,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 520.1428571428571) internal successors, (3641), 7 states have internal predecessors, (3641), 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) [2022-11-20 09:29:21,536 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:21,537 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:21,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:21,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:21,738 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 09:29:21,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:21,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1891352005, now seen corresponding path program 3 times [2022-11-20 09:29:21,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:21,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821083877] [2022-11-20 09:29:21,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:21,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-20 09:29:22,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:22,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821083877] [2022-11-20 09:29:22,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821083877] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:22,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382854779] [2022-11-20 09:29:22,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 09:29:22,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:22,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:22,842 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:22,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 09:29:23,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-20 09:29:23,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:29:23,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-20 09:29:23,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:42,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:29:42,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:29:42,382 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 09:29:42,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 29 [2022-11-20 09:29:43,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:29:43,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:29:43,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 09:29:43,090 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-20 09:29:43,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 47 [2022-11-20 09:29:43,332 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 09:29:43,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 52 [2022-11-20 09:29:43,506 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-11-20 09:29:43,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:43,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382854779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:43,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:29:43,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [11] total 35 [2022-11-20 09:29:43,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265619637] [2022-11-20 09:29:43,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:43,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 09:29:43,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:43,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 09:29:43,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 09:29:43,522 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 740 [2022-11-20 09:29:43,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 727 transitions, 1983 flow. Second operand has 26 states, 26 states have (on average 412.96153846153845) internal successors, (10737), 26 states have internal predecessors, (10737), 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) [2022-11-20 09:29:43,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:43,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 740 [2022-11-20 09:29:43,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:50,600 INFO L130 PetriNetUnfolder]: 2144/4397 cut-off events. [2022-11-20 09:29:50,601 INFO L131 PetriNetUnfolder]: For 868/944 co-relation queries the response was YES. [2022-11-20 09:29:50,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7877 conditions, 4397 events. 2144/4397 cut-off events. For 868/944 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 23994 event pairs, 423 based on Foata normal form. 1/3939 useless extension candidates. Maximal degree in co-relation 7859. Up to 1784 conditions per place. [2022-11-20 09:29:50,649 INFO L137 encePairwiseOnDemand]: 634/740 looper letters, 220 selfloop transitions, 117 changer transitions 11/809 dead transitions. [2022-11-20 09:29:50,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 809 transitions, 2912 flow [2022-11-20 09:29:50,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-20 09:29:50,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-11-20 09:29:50,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 14484 transitions. [2022-11-20 09:29:50,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5592277992277992 [2022-11-20 09:29:50,682 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 14484 transitions. [2022-11-20 09:29:50,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 14484 transitions. [2022-11-20 09:29:50,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:50,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 14484 transitions. [2022-11-20 09:29:50,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 413.8285714285714) internal successors, (14484), 35 states have internal predecessors, (14484), 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) [2022-11-20 09:29:50,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 740.0) internal successors, (26640), 36 states have internal predecessors, (26640), 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) [2022-11-20 09:29:50,775 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 740.0) internal successors, (26640), 36 states have internal predecessors, (26640), 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) [2022-11-20 09:29:50,776 INFO L175 Difference]: Start difference. First operand has 661 places, 727 transitions, 1983 flow. Second operand 35 states and 14484 transitions. [2022-11-20 09:29:50,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 691 places, 809 transitions, 2912 flow [2022-11-20 09:29:50,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 688 places, 809 transitions, 2896 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-11-20 09:29:50,808 INFO L231 Difference]: Finished difference. Result has 694 places, 759 transitions, 2426 flow [2022-11-20 09:29:50,810 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=1977, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=2426, PETRI_PLACES=694, PETRI_TRANSITIONS=759} [2022-11-20 09:29:50,812 INFO L288 CegarLoopForPetriNet]: 657 programPoint places, 37 predicate places. [2022-11-20 09:29:50,813 INFO L495 AbstractCegarLoop]: Abstraction has has 694 places, 759 transitions, 2426 flow [2022-11-20 09:29:50,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 412.96153846153845) internal successors, (10737), 26 states have internal predecessors, (10737), 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) [2022-11-20 09:29:50,817 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:50,818 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:50,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:51,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 09:29:51,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 09:29:51,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:51,029 INFO L85 PathProgramCache]: Analyzing trace with hash -216967683, now seen corresponding path program 4 times [2022-11-20 09:29:51,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:51,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335123622] [2022-11-20 09:29:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:51,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:52,047 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-20 09:29:52,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:52,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335123622] [2022-11-20 09:29:52,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335123622] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:52,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414000571] [2022-11-20 09:29:52,049 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 09:29:52,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:52,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:52,051 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:52,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 09:29:52,913 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 09:29:52,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:29:52,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 1106 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 09:29:52,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:53,158 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-20 09:29:53,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:53,349 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-20 09:29:53,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414000571] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:29:53,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:29:53,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-11-20 09:29:53,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275019614] [2022-11-20 09:29:53,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:29:53,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 09:29:53,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:53,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 09:29:53,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-11-20 09:29:53,365 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 740 [2022-11-20 09:29:53,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 694 places, 759 transitions, 2426 flow. Second operand has 22 states, 22 states have (on average 510.3181818181818) internal successors, (11227), 22 states have internal predecessors, (11227), 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) [2022-11-20 09:29:53,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:53,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 740 [2022-11-20 09:29:53,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:58,024 INFO L130 PetriNetUnfolder]: 1602/3793 cut-off events. [2022-11-20 09:29:58,024 INFO L131 PetriNetUnfolder]: For 3463/3707 co-relation queries the response was YES. [2022-11-20 09:29:58,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8555 conditions, 3793 events. 1602/3793 cut-off events. For 3463/3707 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 19710 event pairs, 390 based on Foata normal form. 24/3393 useless extension candidates. Maximal degree in co-relation 8533. Up to 1914 conditions per place. [2022-11-20 09:29:58,078 INFO L137 encePairwiseOnDemand]: 643/740 looper letters, 262 selfloop transitions, 187 changer transitions 0/915 dead transitions. [2022-11-20 09:29:58,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 720 places, 915 transitions, 3960 flow [2022-11-20 09:29:58,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 09:29:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 09:29:58,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 15471 transitions. [2022-11-20 09:29:58,110 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6968918918918919 [2022-11-20 09:29:58,111 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 15471 transitions. [2022-11-20 09:29:58,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 15471 transitions. [2022-11-20 09:29:58,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:58,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 15471 transitions. [2022-11-20 09:29:58,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 515.7) internal successors, (15471), 30 states have internal predecessors, (15471), 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) [2022-11-20 09:29:58,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 740.0) internal successors, (22940), 31 states have internal predecessors, (22940), 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) [2022-11-20 09:29:58,180 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 740.0) internal successors, (22940), 31 states have internal predecessors, (22940), 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) [2022-11-20 09:29:58,180 INFO L175 Difference]: Start difference. First operand has 694 places, 759 transitions, 2426 flow. Second operand 30 states and 15471 transitions. [2022-11-20 09:29:58,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 720 places, 915 transitions, 3960 flow [2022-11-20 09:29:58,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 690 places, 915 transitions, 3809 flow, removed 4 selfloop flow, removed 30 redundant places. [2022-11-20 09:29:58,210 INFO L231 Difference]: Finished difference. Result has 696 places, 843 transitions, 3296 flow [2022-11-20 09:29:58,211 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=2275, PETRI_DIFFERENCE_MINUEND_PLACES=661, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=3296, PETRI_PLACES=696, PETRI_TRANSITIONS=843} [2022-11-20 09:29:58,212 INFO L288 CegarLoopForPetriNet]: 657 programPoint places, 39 predicate places. [2022-11-20 09:29:58,212 INFO L495 AbstractCegarLoop]: Abstraction has has 696 places, 843 transitions, 3296 flow [2022-11-20 09:29:58,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 510.3181818181818) internal successors, (11227), 22 states have internal predecessors, (11227), 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) [2022-11-20 09:29:58,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:58,218 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:58,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:58,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:58,428 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-20 09:29:58,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:58,429 INFO L85 PathProgramCache]: Analyzing trace with hash -501901573, now seen corresponding path program 5 times [2022-11-20 09:29:58,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:58,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401278299] [2022-11-20 09:29:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:58,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:00,277 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2022-11-20 09:30:00,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:00,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401278299] [2022-11-20 09:30:00,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401278299] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:00,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806422468] [2022-11-20 09:30:00,279 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 09:30:00,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:00,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:00,281 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:00,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464f3bce-2ba3-4075-9092-863aabf3baf4/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process