./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg --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 675e4a71573eb5ca191c78078c954ea41743d39a46f0fa586376ee48e7dc4190 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:00:02,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:00:02,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:00:02,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:00:02,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:00:02,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:00:02,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:00:02,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:00:02,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:00:02,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:00:02,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:00:02,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:00:02,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:00:02,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:00:02,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:00:02,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:00:02,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:00:02,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:00:02,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:00:02,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:00:02,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:00:02,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:00:02,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:00:02,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:00:02,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:00:02,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:00:02,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:00:02,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:00:02,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:00:02,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:00:02,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:00:02,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:00:02,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:00:02,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:00:02,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:00:02,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:00:02,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:00:02,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:00:02,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:00:02,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:00:02,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:00:02,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:00:02,239 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:00:02,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:00:02,240 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:00:02,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:00:02,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:00:02,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:00:02,242 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:00:02,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:00:02,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:00:02,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:00:02,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:00:02,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:00:02,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:00:02,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:00:02,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:00:02,246 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:00:02,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:00:02,247 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:00:02,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:00:02,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:00:02,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:00:02,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:00:02,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:00:02,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:00:02,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:00:02,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:00:02,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:00:02,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:00:02,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:00:02,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:00:02,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:00:02,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:00:02,252 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_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 675e4a71573eb5ca191c78078c954ea41743d39a46f0fa586376ee48e7dc4190 [2021-10-28 09:00:02,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:00:02,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:00:02,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:00:02,592 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:00:02,593 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:00:02,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c [2021-10-28 09:00:02,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/data/785e431ca/60f7d514d719450d89a0ff6e5cfad455/FLAG2545daaea [2021-10-28 09:00:03,110 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:00:03,114 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c [2021-10-28 09:00:03,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/data/785e431ca/60f7d514d719450d89a0ff6e5cfad455/FLAG2545daaea [2021-10-28 09:00:03,482 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/data/785e431ca/60f7d514d719450d89a0ff6e5cfad455 [2021-10-28 09:00:03,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:00:03,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:00:03,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:00:03,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:00:03,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:00:03,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:03,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e60d315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03, skipping insertion in model container [2021-10-28 09:00:03,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:03,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:00:03,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:00:03,830 WARN L228 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_5ab7d3d8-c452-4337-b3e0-d7697f87089f/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[4351,4364] [2021-10-28 09:00:03,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:00:03,857 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:00:03,896 WARN L228 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_5ab7d3d8-c452-4337-b3e0-d7697f87089f/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[4351,4364] [2021-10-28 09:00:03,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:00:03,926 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:00:03,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03 WrapperNode [2021-10-28 09:00:03,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:00:03,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:00:03,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:00:03,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:00:03,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:03,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:04,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:00:04,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:00:04,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:00:04,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:00:04,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:04,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:04,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:04,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:04,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:04,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:04,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:04,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:00:04,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:00:04,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:00:04,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:00:04,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (1/1) ... [2021-10-28 09:00:04,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:00:04,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:00:04,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:00:04,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:00:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:00:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:00:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:00:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 09:00:04,211 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 09:00:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 09:00:04,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 09:00:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 09:00:04,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 09:00:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-28 09:00:04,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-28 09:00:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:00:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 09:00:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 09:00:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:00:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:00:04,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:00:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:00:04,215 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 09:00:05,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:00:05,579 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2021-10-28 09:00:05,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:00:05 BoogieIcfgContainer [2021-10-28 09:00:05,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:00:05,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:00:05,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:00:05,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:00:05,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:00:03" (1/3) ... [2021-10-28 09:00:05,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250bd6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:00:05, skipping insertion in model container [2021-10-28 09:00:05,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:00:03" (2/3) ... [2021-10-28 09:00:05,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250bd6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:00:05, skipping insertion in model container [2021-10-28 09:00:05,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:00:05" (3/3) ... [2021-10-28 09:00:05,591 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series.wvr.c [2021-10-28 09:00:05,598 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 09:00:05,598 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:00:05,598 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:00:05,598 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 09:00:05,640 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,641 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,641 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,641 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,642 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,642 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,643 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,644 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,645 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,645 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,645 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,645 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,646 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,646 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,646 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,646 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,646 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,647 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,647 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,648 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,649 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,650 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,650 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,650 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,650 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,650 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,651 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,651 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,651 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,652 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,652 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,652 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,652 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,676 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,676 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,677 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,677 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,677 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,677 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,677 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,677 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,678 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,678 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,678 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,678 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,678 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,678 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,679 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,679 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,679 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,680 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,680 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,680 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,680 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,681 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,681 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,681 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,681 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,682 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,682 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,682 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,682 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,682 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,682 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,683 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,683 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,683 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,683 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,683 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,683 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,683 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,684 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,684 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,684 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,684 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,684 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,684 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,685 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,685 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,685 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,685 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,685 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,685 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,685 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,686 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,686 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,690 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,691 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,693 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,693 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,693 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,694 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,694 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,694 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,694 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,694 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,694 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,695 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,695 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,695 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,695 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,697 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,697 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,697 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,698 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,698 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,698 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,698 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,698 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,699 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,700 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,700 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,700 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,701 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,701 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,701 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,701 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,701 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,702 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,702 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,702 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,702 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,702 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:00:05,711 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-28 09:00:05,768 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:00:05,776 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 [2021-10-28 09:00:05,776 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-28 09:00:05,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 241 transitions, 514 flow [2021-10-28 09:00:05,978 INFO L129 PetriNetUnfolder]: 22/237 cut-off events. [2021-10-28 09:00:05,978 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 09:00:05,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 237 events. 22/237 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 139 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 201. Up to 2 conditions per place. [2021-10-28 09:00:05,988 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 241 transitions, 514 flow [2021-10-28 09:00:06,006 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 225 transitions, 474 flow [2021-10-28 09:00:06,092 INFO L129 PetriNetUnfolder]: 22/224 cut-off events. [2021-10-28 09:00:06,092 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 09:00:06,092 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:00:06,093 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:06,094 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 09:00:06,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:06,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1099379779, now seen corresponding path program 1 times [2021-10-28 09:00:06,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:06,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903983166] [2021-10-28 09:00:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:06,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:00:06,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:00:06,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903983166] [2021-10-28 09:00:06,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903983166] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:06,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:00:06,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:00:06,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082475790] [2021-10-28 09:00:06,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:00:06,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:00:06,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:00:06,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:00:06,544 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 241 [2021-10-28 09:00:06,549 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 225 transitions, 474 flow. Second operand has 2 states, 2 states have (on average 226.0) internal successors, (452), 2 states have internal predecessors, (452), 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) [2021-10-28 09:00:06,549 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:00:06,549 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 241 [2021-10-28 09:00:06,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:00:06,595 INFO L129 PetriNetUnfolder]: 7/210 cut-off events. [2021-10-28 09:00:06,596 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 09:00:06,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 210 events. 7/210 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 119 event pairs, 0 based on Foata normal form. 15/210 useless extension candidates. Maximal degree in co-relation 222. Up to 2 conditions per place. [2021-10-28 09:00:06,599 INFO L132 encePairwiseOnDemand]: 226/241 looper letters, 0 selfloop transitions, 0 changer transitions 8/210 dead transitions. [2021-10-28 09:00:06,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 210 transitions, 444 flow [2021-10-28 09:00:06,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:00:06,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 09:00:06,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 465 transitions. [2021-10-28 09:00:06,616 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9647302904564315 [2021-10-28 09:00:06,617 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 465 transitions. [2021-10-28 09:00:06,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 465 transitions. [2021-10-28 09:00:06,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:00:06,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 465 transitions. [2021-10-28 09:00:06,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 232.5) internal successors, (465), 2 states have internal predecessors, (465), 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) [2021-10-28 09:00:06,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 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) [2021-10-28 09:00:06,637 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 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) [2021-10-28 09:00:06,639 INFO L186 Difference]: Start difference. First operand has 216 places, 225 transitions, 474 flow. Second operand 2 states and 465 transitions. [2021-10-28 09:00:06,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 210 transitions, 444 flow [2021-10-28 09:00:06,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 210 transitions, 428 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-10-28 09:00:06,651 INFO L242 Difference]: Finished difference. Result has 209 places, 202 transitions, 412 flow [2021-10-28 09:00:06,653 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=412, PETRI_PLACES=209, PETRI_TRANSITIONS=202} [2021-10-28 09:00:06,654 INFO L334 CegarLoopForPetriNet]: 216 programPoint places, -7 predicate places. [2021-10-28 09:00:06,654 INFO L470 AbstractCegarLoop]: Abstraction has has 209 places, 202 transitions, 412 flow [2021-10-28 09:00:06,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 226.0) internal successors, (452), 2 states have internal predecessors, (452), 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) [2021-10-28 09:00:06,655 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:00:06,656 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:06,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:00:06,656 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 09:00:06,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:06,657 INFO L85 PathProgramCache]: Analyzing trace with hash 791656769, now seen corresponding path program 1 times [2021-10-28 09:00:06,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:06,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324229154] [2021-10-28 09:00:06,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:06,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:00:07,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:00:07,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324229154] [2021-10-28 09:00:07,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324229154] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:07,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:00:07,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:00:07,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650947699] [2021-10-28 09:00:07,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:00:07,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:00:07,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:00:07,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:00:07,300 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 241 [2021-10-28 09:00:07,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 202 transitions, 412 flow. Second operand has 5 states, 5 states have (on average 188.6) internal successors, (943), 5 states have internal predecessors, (943), 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) [2021-10-28 09:00:07,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:00:07,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 241 [2021-10-28 09:00:07,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:00:07,435 INFO L129 PetriNetUnfolder]: 12/231 cut-off events. [2021-10-28 09:00:07,435 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:00:07,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 231 events. 12/231 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 182 event pairs, 0 based on Foata normal form. 1/219 useless extension candidates. Maximal degree in co-relation 279. Up to 29 conditions per place. [2021-10-28 09:00:07,438 INFO L132 encePairwiseOnDemand]: 235/241 looper letters, 34 selfloop transitions, 3 changer transitions 3/207 dead transitions. [2021-10-28 09:00:07,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 207 transitions, 502 flow [2021-10-28 09:00:07,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:00:07,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 09:00:07,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 951 transitions. [2021-10-28 09:00:07,445 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7892116182572614 [2021-10-28 09:00:07,445 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 951 transitions. [2021-10-28 09:00:07,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 951 transitions. [2021-10-28 09:00:07,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:00:07,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 951 transitions. [2021-10-28 09:00:07,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 190.2) internal successors, (951), 5 states have internal predecessors, (951), 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) [2021-10-28 09:00:07,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 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) [2021-10-28 09:00:07,459 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 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) [2021-10-28 09:00:07,459 INFO L186 Difference]: Start difference. First operand has 209 places, 202 transitions, 412 flow. Second operand 5 states and 951 transitions. [2021-10-28 09:00:07,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 207 transitions, 502 flow [2021-10-28 09:00:07,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 207 transitions, 502 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 09:00:07,469 INFO L242 Difference]: Finished difference. Result has 208 places, 204 transitions, 435 flow [2021-10-28 09:00:07,470 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=435, PETRI_PLACES=208, PETRI_TRANSITIONS=204} [2021-10-28 09:00:07,471 INFO L334 CegarLoopForPetriNet]: 216 programPoint places, -8 predicate places. [2021-10-28 09:00:07,471 INFO L470 AbstractCegarLoop]: Abstraction has has 208 places, 204 transitions, 435 flow [2021-10-28 09:00:07,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 188.6) internal successors, (943), 5 states have internal predecessors, (943), 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) [2021-10-28 09:00:07,472 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:00:07,473 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:07,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:00:07,473 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 09:00:07,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:07,474 INFO L85 PathProgramCache]: Analyzing trace with hash -501971566, now seen corresponding path program 1 times [2021-10-28 09:00:07,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:07,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30807228] [2021-10-28 09:00:07,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:07,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:00:07,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:00:07,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30807228] [2021-10-28 09:00:07,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30807228] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:07,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:00:07,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:00:07,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337356833] [2021-10-28 09:00:07,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:00:07,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:00:07,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:00:07,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:00:07,663 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 241 [2021-10-28 09:00:07,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 204 transitions, 435 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2021-10-28 09:00:07,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:00:07,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 241 [2021-10-28 09:00:07,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:00:07,743 INFO L129 PetriNetUnfolder]: 16/268 cut-off events. [2021-10-28 09:00:07,743 INFO L130 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2021-10-28 09:00:07,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 268 events. 16/268 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 353 event pairs, 0 based on Foata normal form. 2/251 useless extension candidates. Maximal degree in co-relation 306. Up to 16 conditions per place. [2021-10-28 09:00:07,748 INFO L132 encePairwiseOnDemand]: 238/241 looper letters, 9 selfloop transitions, 2 changer transitions 0/206 dead transitions. [2021-10-28 09:00:07,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 206 transitions, 461 flow [2021-10-28 09:00:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:00:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 09:00:07,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2021-10-28 09:00:07,752 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9156293222683264 [2021-10-28 09:00:07,752 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 662 transitions. [2021-10-28 09:00:07,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 662 transitions. [2021-10-28 09:00:07,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:00:07,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 662 transitions. [2021-10-28 09:00:07,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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) [2021-10-28 09:00:07,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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) [2021-10-28 09:00:07,760 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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) [2021-10-28 09:00:07,760 INFO L186 Difference]: Start difference. First operand has 208 places, 204 transitions, 435 flow. Second operand 3 states and 662 transitions. [2021-10-28 09:00:07,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 206 transitions, 461 flow [2021-10-28 09:00:07,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 206 transitions, 454 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-10-28 09:00:07,792 INFO L242 Difference]: Finished difference. Result has 206 places, 205 transitions, 442 flow [2021-10-28 09:00:07,792 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=442, PETRI_PLACES=206, PETRI_TRANSITIONS=205} [2021-10-28 09:00:07,792 INFO L334 CegarLoopForPetriNet]: 216 programPoint places, -10 predicate places. [2021-10-28 09:00:07,793 INFO L470 AbstractCegarLoop]: Abstraction has has 206 places, 205 transitions, 442 flow [2021-10-28 09:00:07,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2021-10-28 09:00:07,795 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:00:07,796 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:07,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:00:07,796 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 09:00:07,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:07,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1505074654, now seen corresponding path program 1 times [2021-10-28 09:00:07,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:07,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644407190] [2021-10-28 09:00:07,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:07,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:00:07,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:00:07,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644407190] [2021-10-28 09:00:07,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644407190] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:07,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:00:07,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:00:07,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465106507] [2021-10-28 09:00:07,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:00:07,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:00:07,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:00:07,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:00:07,973 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 241 [2021-10-28 09:00:07,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 205 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2021-10-28 09:00:07,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:00:07,977 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 241 [2021-10-28 09:00:07,977 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:00:08,058 INFO L129 PetriNetUnfolder]: 19/294 cut-off events. [2021-10-28 09:00:08,058 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-10-28 09:00:08,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 294 events. 19/294 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 478 event pairs, 0 based on Foata normal form. 2/275 useless extension candidates. Maximal degree in co-relation 339. Up to 19 conditions per place. [2021-10-28 09:00:08,061 INFO L132 encePairwiseOnDemand]: 238/241 looper letters, 9 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2021-10-28 09:00:08,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 207 transitions, 468 flow [2021-10-28 09:00:08,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:00:08,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 09:00:08,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2021-10-28 09:00:08,065 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9156293222683264 [2021-10-28 09:00:08,065 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 662 transitions. [2021-10-28 09:00:08,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 662 transitions. [2021-10-28 09:00:08,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:00:08,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 662 transitions. [2021-10-28 09:00:08,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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) [2021-10-28 09:00:08,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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) [2021-10-28 09:00:08,072 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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) [2021-10-28 09:00:08,072 INFO L186 Difference]: Start difference. First operand has 206 places, 205 transitions, 442 flow. Second operand 3 states and 662 transitions. [2021-10-28 09:00:08,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 207 transitions, 468 flow [2021-10-28 09:00:08,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 207 transitions, 466 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 09:00:08,079 INFO L242 Difference]: Finished difference. Result has 208 places, 206 transitions, 454 flow [2021-10-28 09:00:08,080 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=208, PETRI_TRANSITIONS=206} [2021-10-28 09:00:08,080 INFO L334 CegarLoopForPetriNet]: 216 programPoint places, -8 predicate places. [2021-10-28 09:00:08,080 INFO L470 AbstractCegarLoop]: Abstraction has has 208 places, 206 transitions, 454 flow [2021-10-28 09:00:08,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2021-10-28 09:00:08,081 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:00:08,082 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:08,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:00:08,082 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 09:00:08,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:08,083 INFO L85 PathProgramCache]: Analyzing trace with hash -162507573, now seen corresponding path program 1 times [2021-10-28 09:00:08,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:08,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689978388] [2021-10-28 09:00:08,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:08,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:08,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:00:08,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:00:08,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689978388] [2021-10-28 09:00:08,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689978388] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:08,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:00:08,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:00:08,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028085009] [2021-10-28 09:00:08,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:00:08,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:00:08,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:00:08,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:00:08,237 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 241 [2021-10-28 09:00:08,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 206 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 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) [2021-10-28 09:00:08,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:00:08,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 241 [2021-10-28 09:00:08,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:00:08,493 INFO L129 PetriNetUnfolder]: 20/446 cut-off events. [2021-10-28 09:00:08,493 INFO L130 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2021-10-28 09:00:08,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 446 events. 20/446 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1160 event pairs, 0 based on Foata normal form. 1/416 useless extension candidates. Maximal degree in co-relation 568. Up to 33 conditions per place. [2021-10-28 09:00:08,500 INFO L132 encePairwiseOnDemand]: 231/241 looper letters, 60 selfloop transitions, 11 changer transitions 0/235 dead transitions. [2021-10-28 09:00:08,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 235 transitions, 654 flow [2021-10-28 09:00:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:00:08,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:00:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1735 transitions. [2021-10-28 09:00:08,507 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7999077916090365 [2021-10-28 09:00:08,507 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1735 transitions. [2021-10-28 09:00:08,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1735 transitions. [2021-10-28 09:00:08,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:00:08,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1735 transitions. [2021-10-28 09:00:08,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 192.77777777777777) internal successors, (1735), 9 states have internal predecessors, (1735), 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) [2021-10-28 09:00:08,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 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) [2021-10-28 09:00:08,526 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 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) [2021-10-28 09:00:08,526 INFO L186 Difference]: Start difference. First operand has 208 places, 206 transitions, 454 flow. Second operand 9 states and 1735 transitions. [2021-10-28 09:00:08,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 235 transitions, 654 flow [2021-10-28 09:00:08,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 235 transitions, 652 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 09:00:08,534 INFO L242 Difference]: Finished difference. Result has 217 places, 210 transitions, 494 flow [2021-10-28 09:00:08,535 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=494, PETRI_PLACES=217, PETRI_TRANSITIONS=210} [2021-10-28 09:00:08,535 INFO L334 CegarLoopForPetriNet]: 216 programPoint places, 1 predicate places. [2021-10-28 09:00:08,536 INFO L470 AbstractCegarLoop]: Abstraction has has 217 places, 210 transitions, 494 flow [2021-10-28 09:00:08,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 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) [2021-10-28 09:00:08,536 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:00:08,537 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:08,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:00:08,537 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 09:00:08,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:08,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1373115335, now seen corresponding path program 1 times [2021-10-28 09:00:08,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:08,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161194291] [2021-10-28 09:00:08,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:08,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:08,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:00:08,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:00:08,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161194291] [2021-10-28 09:00:08,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161194291] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:08,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:00:08,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:00:08,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548784670] [2021-10-28 09:00:08,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:00:08,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:00:08,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:00:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:00:08,667 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 241 [2021-10-28 09:00:08,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 210 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 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) [2021-10-28 09:00:08,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:00:08,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 241 [2021-10-28 09:00:08,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:00:08,938 INFO L129 PetriNetUnfolder]: 25/678 cut-off events. [2021-10-28 09:00:08,939 INFO L130 PetriNetUnfolder]: For 45/48 co-relation queries the response was YES. [2021-10-28 09:00:08,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 880 conditions, 678 events. 25/678 cut-off events. For 45/48 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2680 event pairs, 0 based on Foata normal form. 2/635 useless extension candidates. Maximal degree in co-relation 871. Up to 54 conditions per place. [2021-10-28 09:00:08,945 INFO L132 encePairwiseOnDemand]: 231/241 looper letters, 51 selfloop transitions, 12 changer transitions 0/227 dead transitions. [2021-10-28 09:00:08,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 227 transitions, 654 flow [2021-10-28 09:00:08,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:00:08,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:00:08,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1723 transitions. [2021-10-28 09:00:08,952 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7943752881512217 [2021-10-28 09:00:08,952 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1723 transitions. [2021-10-28 09:00:08,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1723 transitions. [2021-10-28 09:00:08,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:00:08,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1723 transitions. [2021-10-28 09:00:08,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 191.44444444444446) internal successors, (1723), 9 states have internal predecessors, (1723), 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) [2021-10-28 09:00:08,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 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) [2021-10-28 09:00:08,969 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 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) [2021-10-28 09:00:08,969 INFO L186 Difference]: Start difference. First operand has 217 places, 210 transitions, 494 flow. Second operand 9 states and 1723 transitions. [2021-10-28 09:00:08,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 227 transitions, 654 flow [2021-10-28 09:00:08,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 227 transitions, 645 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 09:00:08,979 INFO L242 Difference]: Finished difference. Result has 224 places, 214 transitions, 529 flow [2021-10-28 09:00:08,980 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=529, PETRI_PLACES=224, PETRI_TRANSITIONS=214} [2021-10-28 09:00:08,980 INFO L334 CegarLoopForPetriNet]: 216 programPoint places, 8 predicate places. [2021-10-28 09:00:08,980 INFO L470 AbstractCegarLoop]: Abstraction has has 224 places, 214 transitions, 529 flow [2021-10-28 09:00:08,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 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) [2021-10-28 09:00:08,983 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:00:08,984 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:08,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:00:08,984 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 09:00:08,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:08,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1053593504, now seen corresponding path program 1 times [2021-10-28 09:00:08,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:08,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137374504] [2021-10-28 09:00:08,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:08,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:09,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:00:09,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:00:09,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137374504] [2021-10-28 09:00:09,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137374504] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:09,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:00:09,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 09:00:09,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527876887] [2021-10-28 09:00:09,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:00:09,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:00:09,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:00:09,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:00:09,269 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 241 [2021-10-28 09:00:09,271 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 214 transitions, 529 flow. Second operand has 8 states, 8 states have (on average 177.375) internal successors, (1419), 8 states have internal predecessors, (1419), 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) [2021-10-28 09:00:09,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:00:09,272 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 241 [2021-10-28 09:00:09,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:00:10,517 INFO L129 PetriNetUnfolder]: 1087/3855 cut-off events. [2021-10-28 09:00:10,518 INFO L130 PetriNetUnfolder]: For 238/246 co-relation queries the response was YES. [2021-10-28 09:00:10,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6092 conditions, 3855 events. 1087/3855 cut-off events. For 238/246 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 32331 event pairs, 457 based on Foata normal form. 2/3206 useless extension candidates. Maximal degree in co-relation 6081. Up to 631 conditions per place. [2021-10-28 09:00:10,572 INFO L132 encePairwiseOnDemand]: 230/241 looper letters, 79 selfloop transitions, 11 changer transitions 0/242 dead transitions. [2021-10-28 09:00:10,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 242 transitions, 766 flow [2021-10-28 09:00:10,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:00:10,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:00:10,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1631 transitions. [2021-10-28 09:00:10,578 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.751959428307976 [2021-10-28 09:00:10,579 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1631 transitions. [2021-10-28 09:00:10,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1631 transitions. [2021-10-28 09:00:10,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:00:10,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1631 transitions. [2021-10-28 09:00:10,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 181.22222222222223) internal successors, (1631), 9 states have internal predecessors, (1631), 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) [2021-10-28 09:00:10,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 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) [2021-10-28 09:00:10,593 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 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) [2021-10-28 09:00:10,593 INFO L186 Difference]: Start difference. First operand has 224 places, 214 transitions, 529 flow. Second operand 9 states and 1631 transitions. [2021-10-28 09:00:10,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 242 transitions, 766 flow [2021-10-28 09:00:10,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 242 transitions, 755 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 09:00:10,602 INFO L242 Difference]: Finished difference. Result has 233 places, 218 transitions, 568 flow [2021-10-28 09:00:10,603 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=568, PETRI_PLACES=233, PETRI_TRANSITIONS=218} [2021-10-28 09:00:10,604 INFO L334 CegarLoopForPetriNet]: 216 programPoint places, 17 predicate places. [2021-10-28 09:00:10,604 INFO L470 AbstractCegarLoop]: Abstraction has has 233 places, 218 transitions, 568 flow [2021-10-28 09:00:10,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 177.375) internal successors, (1419), 8 states have internal predecessors, (1419), 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) [2021-10-28 09:00:10,605 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:00:10,605 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:10,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:00:10,606 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 09:00:10,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:10,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1614834946, now seen corresponding path program 1 times [2021-10-28 09:00:10,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:10,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872820566] [2021-10-28 09:00:10,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:10,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:00:10,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:00:10,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872820566] [2021-10-28 09:00:10,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872820566] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:10,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:00:10,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 09:00:10,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339523860] [2021-10-28 09:00:10,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:00:10,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:00:10,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:00:10,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:00:10,935 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 241 [2021-10-28 09:00:10,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 218 transitions, 568 flow. Second operand has 8 states, 8 states have (on average 177.375) internal successors, (1419), 8 states have internal predecessors, (1419), 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) [2021-10-28 09:00:10,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:00:10,938 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 241 [2021-10-28 09:00:10,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:00:12,310 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([909] L119-->L122: Formula: (= v_thread4Thread1of1ForFork3_~cond~3_7 (ite (= (ite (or (< v_~j~0_7 v_~N~0_7) (< v_~q2_front~0_5 v_~q2_back~0_7)) 1 0) 0) 0 1)) InVars {~j~0=v_~j~0_7, ~q2_front~0=v_~q2_front~0_5, ~N~0=v_~N~0_7, ~q2_back~0=v_~q2_back~0_7} OutVars{~j~0=v_~j~0_7, ~q2_front~0=v_~q2_front~0_5, thread4Thread1of1ForFork3_~cond~3=v_thread4Thread1of1ForFork3_~cond~3_7, ~N~0=v_~N~0_7, ~q2_back~0=v_~q2_back~0_7} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_~cond~3][233], [113#L52true, 235#true, Black: 258#(<= ~q2_back~0 ~q2_front~0), Black: 283#(<= ~n2~0 0), 29#L101true, 316#true, Black: 287#(and (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~n2~0 ULTIMATE.start_create_fresh_int_array_~size)), 56#L86true, 36#L122true, 295#true, 217#L148-4true, Black: 266#(<= ~n1~0 0), Black: 270#(and (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~n1~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 240#(= ~total~0 0), Black: 310#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (= thread2Thread1of1ForFork0_~cond~1 0) (<= ~N~0 ~j~0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 308#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~N~0 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 304#(and (= ~j~0 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 306#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 253#(<= ~q1_back~0 ~q1_front~0)]) [2021-10-28 09:00:12,311 INFO L384 tUnfolder$Statistics]: this new event has 175 ancestors and is cut-off event [2021-10-28 09:00:12,311 INFO L387 tUnfolder$Statistics]: existing Event has 174 ancestors and is cut-off event [2021-10-28 09:00:12,311 INFO L387 tUnfolder$Statistics]: existing Event has 174 ancestors and is cut-off event [2021-10-28 09:00:12,311 INFO L387 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2021-10-28 09:00:12,312 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([909] L119-->L122: Formula: (= v_thread4Thread1of1ForFork3_~cond~3_7 (ite (= (ite (or (< v_~j~0_7 v_~N~0_7) (< v_~q2_front~0_5 v_~q2_back~0_7)) 1 0) 0) 0 1)) InVars {~j~0=v_~j~0_7, ~q2_front~0=v_~q2_front~0_5, ~N~0=v_~N~0_7, ~q2_back~0=v_~q2_back~0_7} OutVars{~j~0=v_~j~0_7, ~q2_front~0=v_~q2_front~0_5, thread4Thread1of1ForFork3_~cond~3=v_thread4Thread1of1ForFork3_~cond~3_7, ~N~0=v_~N~0_7, ~q2_back~0=v_~q2_back~0_7} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_~cond~3][233], [235#true, Black: 258#(<= ~q2_back~0 ~q2_front~0), Black: 283#(<= ~n2~0 0), 29#L101true, Black: 287#(and (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~n2~0 ULTIMATE.start_create_fresh_int_array_~size)), 316#true, 56#L86true, 36#L122true, 295#true, 217#L148-4true, Black: 266#(<= ~n1~0 0), Black: 270#(and (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~n1~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), 199#L51-1true, Black: 240#(= ~total~0 0), Black: 310#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (= thread2Thread1of1ForFork0_~cond~1 0) (<= ~N~0 ~j~0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 308#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~N~0 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 304#(and (= ~j~0 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 306#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 253#(<= ~q1_back~0 ~q1_front~0)]) [2021-10-28 09:00:12,313 INFO L384 tUnfolder$Statistics]: this new event has 175 ancestors and is cut-off event [2021-10-28 09:00:12,313 INFO L387 tUnfolder$Statistics]: existing Event has 174 ancestors and is cut-off event [2021-10-28 09:00:12,313 INFO L387 tUnfolder$Statistics]: existing Event has 174 ancestors and is cut-off event [2021-10-28 09:00:12,313 INFO L387 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2021-10-28 09:00:12,334 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([893] L83-->L86: Formula: (= v_thread2Thread1of1ForFork0_~cond~1_7 (ite (= (ite (< v_~j~0_5 v_~N~0_3) 1 0) 0) 0 1)) InVars {~j~0=v_~j~0_5, ~N~0=v_~N~0_3} OutVars{~j~0=v_~j~0_5, ~N~0=v_~N~0_3, thread2Thread1of1ForFork0_~cond~1=v_thread2Thread1of1ForFork0_~cond~1_7} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_~cond~1][218], [113#L52true, 235#true, Black: 258#(<= ~q2_back~0 ~q2_front~0), Black: 283#(<= ~n2~0 0), 29#L101true, Black: 287#(and (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~n2~0 ULTIMATE.start_create_fresh_int_array_~size)), 316#true, 56#L86true, 295#true, 217#L148-4true, 136#L119true, Black: 266#(<= ~n1~0 0), Black: 270#(and (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~n1~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 240#(= ~total~0 0), Black: 310#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (= thread2Thread1of1ForFork0_~cond~1 0) (<= ~N~0 ~j~0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 308#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~N~0 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 304#(and (= ~j~0 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 306#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 253#(<= ~q1_back~0 ~q1_front~0)]) [2021-10-28 09:00:12,335 INFO L384 tUnfolder$Statistics]: this new event has 178 ancestors and is cut-off event [2021-10-28 09:00:12,335 INFO L387 tUnfolder$Statistics]: existing Event has 177 ancestors and is cut-off event [2021-10-28 09:00:12,335 INFO L387 tUnfolder$Statistics]: existing Event has 177 ancestors and is cut-off event [2021-10-28 09:00:12,335 INFO L387 tUnfolder$Statistics]: existing Event has 174 ancestors and is cut-off event [2021-10-28 09:00:12,336 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([893] L83-->L86: Formula: (= v_thread2Thread1of1ForFork0_~cond~1_7 (ite (= (ite (< v_~j~0_5 v_~N~0_3) 1 0) 0) 0 1)) InVars {~j~0=v_~j~0_5, ~N~0=v_~N~0_3} OutVars{~j~0=v_~j~0_5, ~N~0=v_~N~0_3, thread2Thread1of1ForFork0_~cond~1=v_thread2Thread1of1ForFork0_~cond~1_7} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_~cond~1][218], [235#true, Black: 258#(<= ~q2_back~0 ~q2_front~0), Black: 283#(<= ~n2~0 0), 29#L101true, Black: 287#(and (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size|) (<= ~n2~0 ULTIMATE.start_create_fresh_int_array_~size)), 316#true, 56#L86true, 295#true, 217#L148-4true, 136#L119true, Black: 266#(<= ~n1~0 0), Black: 270#(and (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~n1~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), 199#L51-1true, Black: 240#(= ~total~0 0), Black: 310#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (= thread2Thread1of1ForFork0_~cond~1 0) (<= ~N~0 ~j~0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 308#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~N~0 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 304#(and (= ~j~0 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 306#(and (= ~j~0 0) (= ULTIMATE.start_create_fresh_int_array_~i~1 0) (<= ~N~0 ULTIMATE.start_create_fresh_int_array_~size) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size|)), Black: 253#(<= ~q1_back~0 ~q1_front~0)]) [2021-10-28 09:00:12,336 INFO L384 tUnfolder$Statistics]: this new event has 178 ancestors and is cut-off event [2021-10-28 09:00:12,336 INFO L387 tUnfolder$Statistics]: existing Event has 174 ancestors and is cut-off event [2021-10-28 09:00:12,337 INFO L387 tUnfolder$Statistics]: existing Event has 177 ancestors and is cut-off event [2021-10-28 09:00:12,337 INFO L387 tUnfolder$Statistics]: existing Event has 177 ancestors and is cut-off event [2021-10-28 09:00:12,376 INFO L129 PetriNetUnfolder]: 1128/4050 cut-off events. [2021-10-28 09:00:12,377 INFO L130 PetriNetUnfolder]: For 578/580 co-relation queries the response was YES. [2021-10-28 09:00:12,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6726 conditions, 4050 events. 1128/4050 cut-off events. For 578/580 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 34464 event pairs, 440 based on Foata normal form. 0/3402 useless extension candidates. Maximal degree in co-relation 6711. Up to 723 conditions per place. [2021-10-28 09:00:12,431 INFO L132 encePairwiseOnDemand]: 230/241 looper letters, 66 selfloop transitions, 9 changer transitions 11/239 dead transitions. [2021-10-28 09:00:12,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 239 transitions, 789 flow [2021-10-28 09:00:12,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:00:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:00:12,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1627 transitions. [2021-10-28 09:00:12,439 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7501152604887045 [2021-10-28 09:00:12,439 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1627 transitions. [2021-10-28 09:00:12,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1627 transitions. [2021-10-28 09:00:12,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:00:12,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1627 transitions. [2021-10-28 09:00:12,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 180.77777777777777) internal successors, (1627), 9 states have internal predecessors, (1627), 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) [2021-10-28 09:00:12,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 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) [2021-10-28 09:00:12,455 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 241.0) internal successors, (2410), 10 states have internal predecessors, (2410), 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) [2021-10-28 09:00:12,455 INFO L186 Difference]: Start difference. First operand has 233 places, 218 transitions, 568 flow. Second operand 9 states and 1627 transitions. [2021-10-28 09:00:12,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 239 transitions, 789 flow [2021-10-28 09:00:12,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 239 transitions, 777 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 09:00:12,466 INFO L242 Difference]: Finished difference. Result has 240 places, 217 transitions, 574 flow [2021-10-28 09:00:12,467 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=574, PETRI_PLACES=240, PETRI_TRANSITIONS=217} [2021-10-28 09:00:12,467 INFO L334 CegarLoopForPetriNet]: 216 programPoint places, 24 predicate places. [2021-10-28 09:00:12,467 INFO L470 AbstractCegarLoop]: Abstraction has has 240 places, 217 transitions, 574 flow [2021-10-28 09:00:12,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 177.375) internal successors, (1419), 8 states have internal predecessors, (1419), 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) [2021-10-28 09:00:12,469 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:00:12,469 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:12,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:00:12,470 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-28 09:00:12,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:12,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1846303347, now seen corresponding path program 1 times [2021-10-28 09:00:12,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:00:12,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572453918] [2021-10-28 09:00:12,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:12,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:00:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:12,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:00:12,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:00:12,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572453918] [2021-10-28 09:00:12,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572453918] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:00:12,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134029399] [2021-10-28 09:00:12,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:12,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:00:12,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:00:12,851 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:00:12,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:00:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:13,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:00:13,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:00:13,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 09:00:13,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134029399] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:13,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:00:13,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2021-10-28 09:00:13,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353418991] [2021-10-28 09:00:13,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:00:13,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:00:13,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:00:13,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:00:13,832 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 241 [2021-10-28 09:00:13,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 217 transitions, 574 flow. Second operand has 6 states, 6 states have (on average 167.16666666666666) internal successors, (1003), 6 states have internal predecessors, (1003), 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) [2021-10-28 09:00:13,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:00:13,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 241 [2021-10-28 09:00:13,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:00:14,005 INFO L129 PetriNetUnfolder]: 0/101 cut-off events. [2021-10-28 09:00:14,006 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-10-28 09:00:14,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 101 events. 0/101 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2021-10-28 09:00:14,007 INFO L132 encePairwiseOnDemand]: 224/241 looper letters, 0 selfloop transitions, 0 changer transitions 101/101 dead transitions. [2021-10-28 09:00:14,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 101 transitions, 330 flow [2021-10-28 09:00:14,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:00:14,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 09:00:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 989 transitions. [2021-10-28 09:00:14,012 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6839557399723375 [2021-10-28 09:00:14,012 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 989 transitions. [2021-10-28 09:00:14,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 989 transitions. [2021-10-28 09:00:14,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:00:14,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 989 transitions. [2021-10-28 09:00:14,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.83333333333334) internal successors, (989), 6 states have internal predecessors, (989), 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) [2021-10-28 09:00:14,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 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) [2021-10-28 09:00:14,023 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 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) [2021-10-28 09:00:14,023 INFO L186 Difference]: Start difference. First operand has 240 places, 217 transitions, 574 flow. Second operand 6 states and 989 transitions. [2021-10-28 09:00:14,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 101 transitions, 330 flow [2021-10-28 09:00:14,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 101 transitions, 283 flow, removed 0 selfloop flow, removed 24 redundant places. [2021-10-28 09:00:14,026 INFO L242 Difference]: Finished difference. Result has 117 places, 0 transitions, 0 flow [2021-10-28 09:00:14,027 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=117, PETRI_TRANSITIONS=0} [2021-10-28 09:00:14,027 INFO L334 CegarLoopForPetriNet]: 216 programPoint places, -99 predicate places. [2021-10-28 09:00:14,027 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 0 transitions, 0 flow [2021-10-28 09:00:14,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.16666666666666) internal successors, (1003), 6 states have internal predecessors, (1003), 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) [2021-10-28 09:00:14,031 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:00:14,031 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 09:00:14,032 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 09:00:14,032 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 09:00:14,032 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-28 09:00:14,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:00:14,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:00:14,249 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:14,252 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 09:00:14,252 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:00:14,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:00:14 BasicIcfg [2021-10-28 09:00:14,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:00:14,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:00:14,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:00:14,255 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:00:14,257 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:00:05" (3/4) ... [2021-10-28 09:00:14,263 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:00:14,276 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 09:00:14,276 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 09:00:14,276 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 09:00:14,277 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2021-10-28 09:00:14,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-10-28 09:00:14,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:00:14,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:00:14,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:00:14,370 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:00:14,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:00:14,372 INFO L168 Benchmark]: Toolchain (without parser) took 10884.53 ms. Allocated memory was 88.1 MB in the beginning and 392.2 MB in the end (delta: 304.1 MB). Free memory was 51.8 MB in the beginning and 252.0 MB in the end (delta: -200.1 MB). Peak memory consumption was 103.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:14,373 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:00:14,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.17 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 51.7 MB in the beginning and 90.0 MB in the end (delta: -38.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:14,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.76 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 86.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:14,375 INFO L168 Benchmark]: Boogie Preprocessor took 73.98 ms. Allocated memory is still 115.3 MB. Free memory was 86.9 MB in the beginning and 84.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:14,376 INFO L168 Benchmark]: RCFGBuilder took 1461.61 ms. Allocated memory is still 115.3 MB. Free memory was 84.8 MB in the beginning and 66.0 MB in the end (delta: 18.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:14,377 INFO L168 Benchmark]: TraceAbstraction took 8670.91 ms. Allocated memory was 115.3 MB in the beginning and 392.2 MB in the end (delta: 276.8 MB). Free memory was 65.6 MB in the beginning and 256.8 MB in the end (delta: -191.3 MB). Peak memory consumption was 85.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:14,377 INFO L168 Benchmark]: Witness Printer took 116.03 ms. Allocated memory is still 392.2 MB. Free memory was 256.8 MB in the beginning and 252.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:14,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 428.17 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 51.7 MB in the beginning and 90.0 MB in the end (delta: -38.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.76 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 86.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.98 ms. Allocated memory is still 115.3 MB. Free memory was 86.9 MB in the beginning and 84.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1461.61 ms. Allocated memory is still 115.3 MB. Free memory was 84.8 MB in the beginning and 66.0 MB in the end (delta: 18.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8670.91 ms. Allocated memory was 115.3 MB in the beginning and 392.2 MB in the end (delta: 276.8 MB). Free memory was 65.6 MB in the beginning and 256.8 MB in the end (delta: -191.3 MB). Peak memory consumption was 85.5 MB. Max. memory is 16.1 GB. * Witness Printer took 116.03 ms. Allocated memory is still 392.2 MB. Free memory was 256.8 MB in the beginning and 252.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 155]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 254 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 345 SDslu, 369 SDs, 0 SdLazy, 551 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 264 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=574occurred in iteration=8, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1760 NumberOfCodeBlocks, 1760 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1750 ConstructedInterpolants, 0 QuantifiedInterpolants, 4940 SizeOfPredicates, 4 NumberOfNonLiveVariables, 470 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 19/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 09:00:14,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab7d3d8-c452-4337-b3e0-d7697f87089f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...