./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/indexer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/indexer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF --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 f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:16:07,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:16:07,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:16:07,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:16:07,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:16:07,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:16:07,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:16:07,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:16:07,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:16:07,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:16:07,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:16:07,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:16:07,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:16:07,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:16:07,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:16:07,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:16:07,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:16:07,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:16:07,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:16:07,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:16:07,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:16:07,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:16:07,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:16:07,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:16:07,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:16:07,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:16:07,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:16:07,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:16:07,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:16:07,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:16:07,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:16:07,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:16:07,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:16:07,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:16:07,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:16:07,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:16:07,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:16:07,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:16:07,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:16:07,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:16:07,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:16:07,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:16:07,273 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:16:07,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:16:07,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:16:07,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:16:07,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:16:07,282 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:16:07,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:16:07,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:16:07,283 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:16:07,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:16:07,285 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:16:07,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:16:07,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:16:07,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:16:07,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:16:07,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:16:07,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:16:07,286 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:16:07,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:16:07,286 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:16:07,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:16:07,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:16:07,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:16:07,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:16:07,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:16:07,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:16:07,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:16:07,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:16:07,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:16:07,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:16:07,290 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:16:07,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:16:07,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:16:07,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:16:07,291 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_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c [2021-11-20 07:16:07,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:16:07,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:16:07,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:16:07,671 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:16:07,672 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:16:07,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/pthread/indexer.i [2021-11-20 07:16:07,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/data/02687d401/2209bcc2842b44edb858e901406c73b4/FLAGf7c383cf4 [2021-11-20 07:16:08,447 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:16:08,448 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/sv-benchmarks/c/pthread/indexer.i [2021-11-20 07:16:08,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/data/02687d401/2209bcc2842b44edb858e901406c73b4/FLAGf7c383cf4 [2021-11-20 07:16:08,648 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/data/02687d401/2209bcc2842b44edb858e901406c73b4 [2021-11-20 07:16:08,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:16:08,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:16:08,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:16:08,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:16:08,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:16:08,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:16:08" (1/1) ... [2021-11-20 07:16:08,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e6bbda3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:08, skipping insertion in model container [2021-11-20 07:16:08,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:16:08" (1/1) ... [2021-11-20 07:16:08,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:16:08,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:16:09,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/sv-benchmarks/c/pthread/indexer.i[47556,47569] [2021-11-20 07:16:09,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:16:09,347 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:16:09,394 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/sv-benchmarks/c/pthread/indexer.i[47556,47569] [2021-11-20 07:16:09,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:16:09,466 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:16:09,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09 WrapperNode [2021-11-20 07:16:09,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:16:09,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:16:09,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:16:09,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:16:09,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (1/1) ... [2021-11-20 07:16:09,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (1/1) ... [2021-11-20 07:16:09,521 INFO L137 Inliner]: procedures = 269, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 114 [2021-11-20 07:16:09,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:16:09,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:16:09,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:16:09,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:16:09,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (1/1) ... [2021-11-20 07:16:09,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (1/1) ... [2021-11-20 07:16:09,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (1/1) ... [2021-11-20 07:16:09,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (1/1) ... [2021-11-20 07:16:09,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (1/1) ... [2021-11-20 07:16:09,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (1/1) ... [2021-11-20 07:16:09,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (1/1) ... [2021-11-20 07:16:09,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:16:09,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:16:09,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:16:09,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:16:09,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (1/1) ... [2021-11-20 07:16:09,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:16:09,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:16:09,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:16:09,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:16:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:16:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:16:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:16:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread_routine [2021-11-20 07:16:09,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_routine [2021-11-20 07:16:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:16:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 07:16:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:16:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:16:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:16:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:16:09,684 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 07:16:09,837 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:16:09,839 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:16:10,137 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:16:10,147 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:16:10,147 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-20 07:16:10,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:10 BoogieIcfgContainer [2021-11-20 07:16:10,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:16:10,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:16:10,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:16:10,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:16:10,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:16:08" (1/3) ... [2021-11-20 07:16:10,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f19fc33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:16:10, skipping insertion in model container [2021-11-20 07:16:10,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:09" (2/3) ... [2021-11-20 07:16:10,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f19fc33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:16:10, skipping insertion in model container [2021-11-20 07:16:10,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:10" (3/3) ... [2021-11-20 07:16:10,169 INFO L111 eAbstractionObserver]: Analyzing ICFG indexer.i [2021-11-20 07:16:10,183 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 07:16:10,183 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:16:10,184 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:16:10,184 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 07:16:10,242 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,242 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,243 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,243 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,243 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,244 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,244 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,244 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,244 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,245 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,245 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,245 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,245 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,246 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,246 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,246 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,247 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,247 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,248 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,248 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,248 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,248 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,249 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,250 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,250 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,251 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,251 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,251 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,252 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,252 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,253 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,253 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,253 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,253 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,254 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,254 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,254 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,254 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,255 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,255 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,255 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,255 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,256 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,256 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,256 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,256 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,256 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,257 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,257 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,257 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,257 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,258 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,258 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,258 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,258 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,259 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,259 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,259 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,260 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,260 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,260 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,260 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,261 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,261 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,261 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,261 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,261 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,262 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,262 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,262 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,262 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,263 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,263 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,263 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,263 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,264 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,264 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,264 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,264 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,264 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,265 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,265 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,265 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,265 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,265 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,266 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,266 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,266 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,266 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,266 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,267 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,267 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,267 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,267 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,267 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,268 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,268 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,268 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,268 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,269 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,269 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,269 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,269 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,269 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,270 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,270 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,270 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,270 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,271 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,271 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,271 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,271 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,272 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,272 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,272 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,272 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,273 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,273 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,273 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,273 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,274 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,274 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,274 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,274 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,275 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,275 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,275 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,275 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,276 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,276 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,276 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,276 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,277 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,277 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,277 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,277 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,278 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,278 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,278 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,278 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,278 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,279 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,279 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,279 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,279 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,280 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,280 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,280 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,280 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,280 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,281 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,281 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,281 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,281 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,282 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,282 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,282 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,282 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,282 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,283 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,283 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,283 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,283 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,284 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,284 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,284 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,284 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,284 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,285 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,285 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,285 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,285 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,285 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,286 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,289 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,290 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,290 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,290 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,291 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,291 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,291 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,291 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,291 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,292 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,292 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,292 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,292 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,292 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,293 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,293 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,293 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,293 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,294 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,294 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,294 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,294 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,294 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,295 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,295 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:16:10,303 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-20 07:16:10,364 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:16:10,372 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:16:10,373 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-20 07:16:10,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 122 transitions, 252 flow [2021-11-20 07:16:10,455 INFO L129 PetriNetUnfolder]: 18/146 cut-off events. [2021-11-20 07:16:10,455 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 07:16:10,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 146 events. 18/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2021-11-20 07:16:10,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 122 transitions, 252 flow [2021-11-20 07:16:10,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 117 transitions, 239 flow [2021-11-20 07:16:10,501 INFO L129 PetriNetUnfolder]: 11/93 cut-off events. [2021-11-20 07:16:10,502 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 07:16:10,502 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:10,503 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-11-20 07:16:10,503 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:10,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:10,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1129507411, now seen corresponding path program 1 times [2021-11-20 07:16:10,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:10,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014660206] [2021-11-20 07:16:10,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:10,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:10,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:10,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014660206] [2021-11-20 07:16:10,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014660206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:16:10,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:16:10,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:16:10,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804477892] [2021-11-20 07:16:10,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:16:10,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:16:10,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:10,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:16:10,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:16:10,863 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 122 [2021-11-20 07:16:10,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 117 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2021-11-20 07:16:10,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:16:10,872 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 122 [2021-11-20 07:16:10,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:16:10,967 INFO L129 PetriNetUnfolder]: 4/105 cut-off events. [2021-11-20 07:16:10,968 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 07:16:10,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 105 events. 4/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 8/107 useless extension candidates. Maximal degree in co-relation 72. Up to 14 conditions per place. [2021-11-20 07:16:10,971 INFO L132 encePairwiseOnDemand]: 107/122 looper letters, 21 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2021-11-20 07:16:10,971 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 103 transitions, 263 flow [2021-11-20 07:16:10,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:16:10,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 07:16:10,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2021-11-20 07:16:10,990 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8114754098360656 [2021-11-20 07:16:10,991 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2021-11-20 07:16:10,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2021-11-20 07:16:10,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:16:10,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2021-11-20 07:16:11,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2021-11-20 07:16:11,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2021-11-20 07:16:11,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2021-11-20 07:16:11,014 INFO L186 Difference]: Start difference. First operand has 107 places, 117 transitions, 239 flow. Second operand 3 states and 297 transitions. [2021-11-20 07:16:11,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 103 transitions, 263 flow [2021-11-20 07:16:11,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 103 transitions, 263 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 07:16:11,025 INFO L242 Difference]: Finished difference. Result has 98 places, 97 transitions, 220 flow [2021-11-20 07:16:11,028 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=98, PETRI_TRANSITIONS=97} [2021-11-20 07:16:11,032 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, -9 predicate places. [2021-11-20 07:16:11,036 INFO L470 AbstractCegarLoop]: Abstraction has has 98 places, 97 transitions, 220 flow [2021-11-20 07:16:11,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2021-11-20 07:16:11,037 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:11,037 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-11-20 07:16:11,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:16:11,038 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:11,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:11,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1175273194, now seen corresponding path program 1 times [2021-11-20 07:16:11,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:11,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167902492] [2021-11-20 07:16:11,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:11,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:11,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:11,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167902492] [2021-11-20 07:16:11,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167902492] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:16:11,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22574668] [2021-11-20 07:16:11,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:11,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:16:11,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:16:11,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:16:11,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:16:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:11,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:16:11,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:16:11,621 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:11,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:16:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:11,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22574668] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:16:11,814 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:16:11,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-20 07:16:11,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477282583] [2021-11-20 07:16:11,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:16:11,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 07:16:11,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:11,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:16:11,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:16:11,820 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-11-20 07:16:11,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 97 transitions, 220 flow. Second operand has 10 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 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) [2021-11-20 07:16:11,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:16:11,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-11-20 07:16:11,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:16:12,016 INFO L129 PetriNetUnfolder]: 4/112 cut-off events. [2021-11-20 07:16:12,017 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-20 07:16:12,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 112 events. 4/112 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 78. Up to 12 conditions per place. [2021-11-20 07:16:12,021 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 21 selfloop transitions, 13 changer transitions 0/110 dead transitions. [2021-11-20 07:16:12,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 110 transitions, 316 flow [2021-11-20 07:16:12,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 07:16:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-20 07:16:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 876 transitions. [2021-11-20 07:16:12,030 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7180327868852459 [2021-11-20 07:16:12,031 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 876 transitions. [2021-11-20 07:16:12,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 876 transitions. [2021-11-20 07:16:12,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:16:12,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 876 transitions. [2021-11-20 07:16:12,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.6) internal successors, (876), 10 states have internal predecessors, (876), 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) [2021-11-20 07:16:12,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 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) [2021-11-20 07:16:12,044 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 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) [2021-11-20 07:16:12,045 INFO L186 Difference]: Start difference. First operand has 98 places, 97 transitions, 220 flow. Second operand 10 states and 876 transitions. [2021-11-20 07:16:12,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 110 transitions, 316 flow [2021-11-20 07:16:12,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 110 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 07:16:12,053 INFO L242 Difference]: Finished difference. Result has 109 places, 104 transitions, 281 flow [2021-11-20 07:16:12,053 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=281, PETRI_PLACES=109, PETRI_TRANSITIONS=104} [2021-11-20 07:16:12,054 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2021-11-20 07:16:12,055 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 104 transitions, 281 flow [2021-11-20 07:16:12,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 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) [2021-11-20 07:16:12,057 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:12,057 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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] [2021-11-20 07:16:12,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:16:12,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:16:12,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:12,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:12,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1677055178, now seen corresponding path program 2 times [2021-11-20 07:16:12,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:12,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604184861] [2021-11-20 07:16:12,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:12,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:12,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:12,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604184861] [2021-11-20 07:16:12,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604184861] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:16:12,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259377206] [2021-11-20 07:16:12,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:16:12,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:16:12,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:16:12,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:16:12,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:16:12,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:16:12,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:16:12,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:16:12,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:16:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:12,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:16:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:12,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259377206] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:16:12,875 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:16:12,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-20 07:16:12,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366834816] [2021-11-20 07:16:12,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:16:12,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 07:16:12,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:12,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 07:16:12,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-20 07:16:12,896 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-11-20 07:16:12,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 104 transitions, 281 flow. Second operand has 18 states, 18 states have (on average 86.66666666666667) internal successors, (1560), 18 states have internal predecessors, (1560), 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) [2021-11-20 07:16:12,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:16:12,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-11-20 07:16:12,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:16:13,187 INFO L129 PetriNetUnfolder]: 4/132 cut-off events. [2021-11-20 07:16:13,187 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-11-20 07:16:13,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 132 events. 4/132 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 4/132 useless extension candidates. Maximal degree in co-relation 168. Up to 13 conditions per place. [2021-11-20 07:16:13,191 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 29 selfloop transitions, 25 changer transitions 0/130 dead transitions. [2021-11-20 07:16:13,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 130 transitions, 501 flow [2021-11-20 07:16:13,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:16:13,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-11-20 07:16:13,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1906 transitions. [2021-11-20 07:16:13,200 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.710134128166915 [2021-11-20 07:16:13,200 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1906 transitions. [2021-11-20 07:16:13,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1906 transitions. [2021-11-20 07:16:13,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:16:13,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1906 transitions. [2021-11-20 07:16:13,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 86.63636363636364) internal successors, (1906), 22 states have internal predecessors, (1906), 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) [2021-11-20 07:16:13,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 122.0) internal successors, (2806), 23 states have internal predecessors, (2806), 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) [2021-11-20 07:16:13,220 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 122.0) internal successors, (2806), 23 states have internal predecessors, (2806), 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) [2021-11-20 07:16:13,220 INFO L186 Difference]: Start difference. First operand has 109 places, 104 transitions, 281 flow. Second operand 22 states and 1906 transitions. [2021-11-20 07:16:13,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 130 transitions, 501 flow [2021-11-20 07:16:13,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 130 transitions, 484 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-11-20 07:16:13,235 INFO L242 Difference]: Finished difference. Result has 134 places, 117 transitions, 414 flow [2021-11-20 07:16:13,235 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=414, PETRI_PLACES=134, PETRI_TRANSITIONS=117} [2021-11-20 07:16:13,238 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 27 predicate places. [2021-11-20 07:16:13,239 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 117 transitions, 414 flow [2021-11-20 07:16:13,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 86.66666666666667) internal successors, (1560), 18 states have internal predecessors, (1560), 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) [2021-11-20 07:16:13,242 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:13,243 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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] [2021-11-20 07:16:13,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:16:13,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:16:13,459 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:13,460 INFO L85 PathProgramCache]: Analyzing trace with hash 894994294, now seen corresponding path program 3 times [2021-11-20 07:16:13,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:13,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093375198] [2021-11-20 07:16:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:13,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:13,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:13,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093375198] [2021-11-20 07:16:13,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093375198] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:16:13,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53335878] [2021-11-20 07:16:13,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 07:16:13,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:16:13,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:16:13,687 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:16:13,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:16:13,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-20 07:16:13,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:16:13,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 07:16:13,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:16:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:14,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:16:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:14,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53335878] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:16:14,544 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:16:14,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2021-11-20 07:16:14,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371132710] [2021-11-20 07:16:14,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:16:14,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-20 07:16:14,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:14,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-20 07:16:14,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 07:16:14,554 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-11-20 07:16:14,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 117 transitions, 414 flow. Second operand has 34 states, 34 states have (on average 86.58823529411765) internal successors, (2944), 34 states have internal predecessors, (2944), 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) [2021-11-20 07:16:14,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:16:14,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-11-20 07:16:14,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:16:15,322 INFO L129 PetriNetUnfolder]: 4/172 cut-off events. [2021-11-20 07:16:15,323 INFO L130 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2021-11-20 07:16:15,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 172 events. 4/172 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 8/176 useless extension candidates. Maximal degree in co-relation 375. Up to 28 conditions per place. [2021-11-20 07:16:15,325 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 45 selfloop transitions, 49 changer transitions 0/170 dead transitions. [2021-11-20 07:16:15,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 170 transitions, 922 flow [2021-11-20 07:16:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-20 07:16:15,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-11-20 07:16:15,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 3966 transitions. [2021-11-20 07:16:15,343 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7066999287241625 [2021-11-20 07:16:15,344 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 3966 transitions. [2021-11-20 07:16:15,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 3966 transitions. [2021-11-20 07:16:15,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:16:15,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 3966 transitions. [2021-11-20 07:16:15,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 86.21739130434783) internal successors, (3966), 46 states have internal predecessors, (3966), 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) [2021-11-20 07:16:15,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 122.0) internal successors, (5734), 47 states have internal predecessors, (5734), 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) [2021-11-20 07:16:15,387 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 122.0) internal successors, (5734), 47 states have internal predecessors, (5734), 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) [2021-11-20 07:16:15,387 INFO L186 Difference]: Start difference. First operand has 134 places, 117 transitions, 414 flow. Second operand 46 states and 3966 transitions. [2021-11-20 07:16:15,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 170 transitions, 922 flow [2021-11-20 07:16:15,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 170 transitions, 879 flow, removed 14 selfloop flow, removed 6 redundant places. [2021-11-20 07:16:15,406 INFO L242 Difference]: Finished difference. Result has 182 places, 142 transitions, 701 flow [2021-11-20 07:16:15,406 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=701, PETRI_PLACES=182, PETRI_TRANSITIONS=142} [2021-11-20 07:16:15,408 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 75 predicate places. [2021-11-20 07:16:15,408 INFO L470 AbstractCegarLoop]: Abstraction has has 182 places, 142 transitions, 701 flow [2021-11-20 07:16:15,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 86.58823529411765) internal successors, (2944), 34 states have internal predecessors, (2944), 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) [2021-11-20 07:16:15,411 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:15,411 INFO L254 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 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] [2021-11-20 07:16:15,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:16:15,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-20 07:16:15,628 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:15,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:15,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1528078346, now seen corresponding path program 4 times [2021-11-20 07:16:15,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:15,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131820987] [2021-11-20 07:16:15,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:15,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:16,222 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:16,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:16,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131820987] [2021-11-20 07:16:16,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131820987] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:16:16,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222189360] [2021-11-20 07:16:16,223 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 07:16:16,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:16:16,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:16:16,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:16:16,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 07:16:16,335 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 07:16:16,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:16:16,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-20 07:16:16,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:16:16,693 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:16,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:16:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:17,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222189360] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:16:17,903 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:16:17,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2021-11-20 07:16:17,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143208780] [2021-11-20 07:16:17,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:16:17,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-20 07:16:17,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:17,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-20 07:16:17,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2021-11-20 07:16:17,918 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-11-20 07:16:17,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 142 transitions, 701 flow. Second operand has 66 states, 66 states have (on average 86.54545454545455) internal successors, (5712), 66 states have internal predecessors, (5712), 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) [2021-11-20 07:16:17,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:16:17,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-11-20 07:16:17,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:16:20,275 INFO L129 PetriNetUnfolder]: 4/252 cut-off events. [2021-11-20 07:16:20,275 INFO L130 PetriNetUnfolder]: For 2127/2127 co-relation queries the response was YES. [2021-11-20 07:16:20,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 252 events. 4/252 cut-off events. For 2127/2127 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 16/264 useless extension candidates. Maximal degree in co-relation 861. Up to 58 conditions per place. [2021-11-20 07:16:20,281 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 77 selfloop transitions, 97 changer transitions 0/250 dead transitions. [2021-11-20 07:16:20,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 250 transitions, 1901 flow [2021-11-20 07:16:20,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-20 07:16:20,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2021-11-20 07:16:20,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 8002 transitions. [2021-11-20 07:16:20,306 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.705270579940067 [2021-11-20 07:16:20,307 INFO L72 ComplementDD]: Start complementDD. Operand 93 states and 8002 transitions. [2021-11-20 07:16:20,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 8002 transitions. [2021-11-20 07:16:20,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:16:20,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 93 states and 8002 transitions. [2021-11-20 07:16:20,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 94 states, 93 states have (on average 86.04301075268818) internal successors, (8002), 93 states have internal predecessors, (8002), 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) [2021-11-20 07:16:20,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 94 states, 94 states have (on average 122.0) internal successors, (11468), 94 states have internal predecessors, (11468), 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) [2021-11-20 07:16:20,400 INFO L81 ComplementDD]: Finished complementDD. Result has 94 states, 94 states have (on average 122.0) internal successors, (11468), 94 states have internal predecessors, (11468), 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) [2021-11-20 07:16:20,402 INFO L186 Difference]: Start difference. First operand has 182 places, 142 transitions, 701 flow. Second operand 93 states and 8002 transitions. [2021-11-20 07:16:20,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 250 transitions, 1901 flow [2021-11-20 07:16:20,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 250 transitions, 1810 flow, removed 26 selfloop flow, removed 18 redundant places. [2021-11-20 07:16:20,435 INFO L242 Difference]: Finished difference. Result has 273 places, 191 transitions, 1344 flow [2021-11-20 07:16:20,436 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=93, PETRI_FLOW=1344, PETRI_PLACES=273, PETRI_TRANSITIONS=191} [2021-11-20 07:16:20,439 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 166 predicate places. [2021-11-20 07:16:20,439 INFO L470 AbstractCegarLoop]: Abstraction has has 273 places, 191 transitions, 1344 flow [2021-11-20 07:16:20,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 86.54545454545455) internal successors, (5712), 66 states have internal predecessors, (5712), 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) [2021-11-20 07:16:20,442 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:20,442 INFO L254 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 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] [2021-11-20 07:16:20,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:16:20,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:16:20,647 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:20,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:20,648 INFO L85 PathProgramCache]: Analyzing trace with hash 665424118, now seen corresponding path program 5 times [2021-11-20 07:16:20,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:20,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978535913] [2021-11-20 07:16:20,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:20,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:22,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:22,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:22,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978535913] [2021-11-20 07:16:22,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978535913] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:16:22,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495948138] [2021-11-20 07:16:22,287 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 07:16:22,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:16:22,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:16:22,288 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:16:22,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 07:16:27,402 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2021-11-20 07:16:27,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:16:27,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-20 07:16:27,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:16:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:28,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:16:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:31,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495948138] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:16:31,392 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:16:31,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2021-11-20 07:16:31,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506145515] [2021-11-20 07:16:31,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:16:31,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2021-11-20 07:16:31,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:31,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2021-11-20 07:16:31,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2021-11-20 07:16:31,418 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-11-20 07:16:31,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 191 transitions, 1344 flow. Second operand has 130 states, 130 states have (on average 86.52307692307693) internal successors, (11248), 130 states have internal predecessors, (11248), 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) [2021-11-20 07:16:31,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:16:31,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-11-20 07:16:31,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:16:38,325 INFO L129 PetriNetUnfolder]: 4/412 cut-off events. [2021-11-20 07:16:38,326 INFO L130 PetriNetUnfolder]: For 16833/16833 co-relation queries the response was YES. [2021-11-20 07:16:38,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2123 conditions, 412 events. 4/412 cut-off events. For 16833/16833 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 32/440 useless extension candidates. Maximal degree in co-relation 1987. Up to 122 conditions per place. [2021-11-20 07:16:38,331 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 141 selfloop transitions, 193 changer transitions 0/410 dead transitions. [2021-11-20 07:16:38,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 410 transitions, 4160 flow [2021-11-20 07:16:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2021-11-20 07:16:38,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-11-20 07:16:38,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 16242 transitions. [2021-11-20 07:16:38,361 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7043976060369503 [2021-11-20 07:16:38,362 INFO L72 ComplementDD]: Start complementDD. Operand 189 states and 16242 transitions. [2021-11-20 07:16:38,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 16242 transitions. [2021-11-20 07:16:38,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:16:38,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 189 states and 16242 transitions. [2021-11-20 07:16:38,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 190 states, 189 states have (on average 85.93650793650794) internal successors, (16242), 189 states have internal predecessors, (16242), 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) [2021-11-20 07:16:38,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 190 states, 190 states have (on average 122.0) internal successors, (23180), 190 states have internal predecessors, (23180), 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) [2021-11-20 07:16:38,452 INFO L81 ComplementDD]: Finished complementDD. Result has 190 states, 190 states have (on average 122.0) internal successors, (23180), 190 states have internal predecessors, (23180), 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) [2021-11-20 07:16:38,452 INFO L186 Difference]: Start difference. First operand has 273 places, 191 transitions, 1344 flow. Second operand 189 states and 16242 transitions. [2021-11-20 07:16:38,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 410 transitions, 4160 flow [2021-11-20 07:16:38,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 410 transitions, 3972 flow, removed 50 selfloop flow, removed 42 redundant places. [2021-11-20 07:16:38,520 INFO L242 Difference]: Finished difference. Result has 452 places, 288 transitions, 2790 flow [2021-11-20 07:16:38,521 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=1220, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=189, PETRI_FLOW=2790, PETRI_PLACES=452, PETRI_TRANSITIONS=288} [2021-11-20 07:16:38,522 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 345 predicate places. [2021-11-20 07:16:38,522 INFO L470 AbstractCegarLoop]: Abstraction has has 452 places, 288 transitions, 2790 flow [2021-11-20 07:16:38,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 86.52307692307693) internal successors, (11248), 130 states have internal predecessors, (11248), 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) [2021-11-20 07:16:38,526 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:38,527 INFO L254 CegarLoopForPetriNet]: trace histogram [63, 63, 63, 63, 63, 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] [2021-11-20 07:16:38,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:16:38,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:16:38,770 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:38,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:38,770 INFO L85 PathProgramCache]: Analyzing trace with hash -108530954, now seen corresponding path program 6 times [2021-11-20 07:16:38,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:38,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269879508] [2021-11-20 07:16:38,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:38,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:43,753 INFO L134 CoverageAnalysis]: Checked inductivity of 9834 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 07:16:43,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:43,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269879508] [2021-11-20 07:16:43,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269879508] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:16:43,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848608788] [2021-11-20 07:16:43,754 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-20 07:16:43,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:16:43,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:16:43,758 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:16:43,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c46c02c-327e-4887-932f-798166d44f45/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process