./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be --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 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:00:44,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:00:44,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:00:44,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:00:44,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:00:44,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:00:44,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:00:44,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:00:45,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:00:45,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:00:45,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:00:45,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:00:45,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:00:45,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:00:45,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:00:45,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:00:45,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:00:45,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:00:45,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:00:45,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:00:45,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:00:45,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:00:45,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:00:45,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:00:45,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:00:45,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:00:45,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:00:45,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:00:45,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:00:45,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:00:45,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:00:45,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:00:45,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:00:45,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:00:45,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:00:45,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:00:45,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:00:45,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:00:45,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:00:45,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:00:45,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:00:45,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:00:45,107 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:00:45,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:00:45,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:00:45,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:00:45,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:00:45,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:00:45,117 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:00:45,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:00:45,117 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:00:45,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:00:45,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:00:45,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:00:45,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:00:45,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:00:45,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:00:45,120 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:00:45,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:00:45,120 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:00:45,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:00:45,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:00:45,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:00:45,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:00:45,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:00:45,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:00:45,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:00:45,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:00:45,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:00:45,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:00:45,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:00:45,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:00:45,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:00:45,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:00:45,125 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_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 [2021-10-21 19:00:45,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:00:45,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:00:45,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:00:45,524 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:00:45,525 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:00:45,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i [2021-10-21 19:00:45,599 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/data/282a02ce3/cc215a2745da497d8c70db44b90edc1e/FLAGdce7d90c1 [2021-10-21 19:00:46,250 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:00:46,251 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i [2021-10-21 19:00:46,277 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/data/282a02ce3/cc215a2745da497d8c70db44b90edc1e/FLAGdce7d90c1 [2021-10-21 19:00:46,479 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/data/282a02ce3/cc215a2745da497d8c70db44b90edc1e [2021-10-21 19:00:46,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:00:46,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:00:46,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:00:46,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:00:46,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:00:46,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:00:46" (1/1) ... [2021-10-21 19:00:46,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3116844c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:46, skipping insertion in model container [2021-10-21 19:00:46,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:00:46" (1/1) ... [2021-10-21 19:00:46,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:00:46,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:00:46,771 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_fabcbd46-952a-49b7-b758-0799499cf07d/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i[949,962] [2021-10-21 19:00:47,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:00:47,097 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:00:47,112 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_fabcbd46-952a-49b7-b758-0799499cf07d/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i[949,962] [2021-10-21 19:00:47,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:00:47,264 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:00:47,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47 WrapperNode [2021-10-21 19:00:47,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:00:47,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:00:47,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:00:47,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:00:47,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (1/1) ... [2021-10-21 19:00:47,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (1/1) ... [2021-10-21 19:00:47,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:00:47,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:00:47,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:00:47,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:00:47,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (1/1) ... [2021-10-21 19:00:47,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (1/1) ... [2021-10-21 19:00:47,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (1/1) ... [2021-10-21 19:00:47,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (1/1) ... [2021-10-21 19:00:47,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (1/1) ... [2021-10-21 19:00:47,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (1/1) ... [2021-10-21 19:00:47,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (1/1) ... [2021-10-21 19:00:47,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:00:47,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:00:47,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:00:47,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:00:47,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (1/1) ... [2021-10-21 19:00:47,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:00:47,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:00:47,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:00:47,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:00:47,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:00:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-21 19:00:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:00:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:00:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-21 19:00:47,553 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-21 19:00:47,553 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-21 19:00:47,553 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-21 19:00:47,553 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-21 19:00:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-21 19:00:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-21 19:00:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-21 19:00:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:00:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-21 19:00:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:00:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:00:47,562 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-21 19:00:49,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:00:49,590 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-21 19:00:49,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:00:49 BoogieIcfgContainer [2021-10-21 19:00:49,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:00:49,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:00:49,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:00:49,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:00:49,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:00:46" (1/3) ... [2021-10-21 19:00:49,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536571b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:00:49, skipping insertion in model container [2021-10-21 19:00:49,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:00:47" (2/3) ... [2021-10-21 19:00:49,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536571b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:00:49, skipping insertion in model container [2021-10-21 19:00:49,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:00:49" (3/3) ... [2021-10-21 19:00:49,602 INFO L111 eAbstractionObserver]: Analyzing ICFG mix021_tso.oepc.i [2021-10-21 19:00:49,607 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-21 19:00:49,608 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:00:49,608 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-21 19:00:49,608 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-21 19:00:49,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,650 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,650 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,650 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,657 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,657 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,657 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,657 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,658 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,658 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,663 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,663 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,664 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,664 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,664 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,664 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,664 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,664 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,665 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,665 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,665 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,665 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,666 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,666 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,666 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,666 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,667 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,667 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,667 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,667 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,667 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,668 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,668 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,669 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,669 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,669 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,672 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,672 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,673 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,673 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,673 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,673 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,674 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,674 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,674 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,674 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,677 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,681 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,681 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,681 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,682 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,682 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,684 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,685 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:00:49,686 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-21 19:00:49,751 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:00:49,758 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 [2021-10-21 19:00:49,758 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-21 19:00:49,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 128 transitions, 276 flow [2021-10-21 19:00:49,829 INFO L129 PetriNetUnfolder]: 2/124 cut-off events. [2021-10-21 19:00:49,830 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-21 19:00:49,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 124 events. 2/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2021-10-21 19:00:49,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 128 transitions, 276 flow [2021-10-21 19:00:49,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 124 transitions, 260 flow [2021-10-21 19:00:49,857 INFO L129 PetriNetUnfolder]: 0/73 cut-off events. [2021-10-21 19:00:49,858 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-21 19:00:49,858 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:00:49,859 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] [2021-10-21 19:00:49,859 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:00:49,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:00:49,865 INFO L82 PathProgramCache]: Analyzing trace with hash 517386817, now seen corresponding path program 1 times [2021-10-21 19:00:49,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:00:49,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896027014] [2021-10-21 19:00:49,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:00:49,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:00:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:00:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:00:50,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:00:50,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896027014] [2021-10-21 19:00:50,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896027014] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:50,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:50,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:00:50,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213963361] [2021-10-21 19:00:50,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:00:50,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:00:50,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:00:50,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:00:50,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 128 [2021-10-21 19:00:50,240 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 124 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2021-10-21 19:00:50,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:00:50,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 128 [2021-10-21 19:00:50,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:00:50,454 INFO L129 PetriNetUnfolder]: 49/305 cut-off events. [2021-10-21 19:00:50,455 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-21 19:00:50,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 305 events. 49/305 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1158 event pairs, 9 based on Foata normal form. 14/303 useless extension candidates. Maximal degree in co-relation 351. Up to 65 conditions per place. [2021-10-21 19:00:50,464 INFO L132 encePairwiseOnDemand]: 123/128 looper letters, 9 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2021-10-21 19:00:50,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 124 transitions, 282 flow [2021-10-21 19:00:50,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:00:50,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-21 19:00:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-10-21 19:00:50,488 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9557291666666666 [2021-10-21 19:00:50,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-10-21 19:00:50,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-10-21 19:00:50,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:00:50,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-10-21 19:00:50,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2021-10-21 19:00:50,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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) [2021-10-21 19:00:50,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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) [2021-10-21 19:00:50,516 INFO L186 Difference]: Start difference. First operand has 135 places, 124 transitions, 260 flow. Second operand 3 states and 367 transitions. [2021-10-21 19:00:50,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 124 transitions, 282 flow [2021-10-21 19:00:50,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 124 transitions, 278 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-21 19:00:50,525 INFO L242 Difference]: Finished difference. Result has 131 places, 120 transitions, 252 flow [2021-10-21 19:00:50,527 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=131, PETRI_TRANSITIONS=120} [2021-10-21 19:00:50,528 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, -4 predicate places. [2021-10-21 19:00:50,528 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 120 transitions, 252 flow [2021-10-21 19:00:50,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2021-10-21 19:00:50,529 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:00:50,529 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] [2021-10-21 19:00:50,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:00:50,530 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:00:50,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:00:50,530 INFO L82 PathProgramCache]: Analyzing trace with hash -2022615872, now seen corresponding path program 1 times [2021-10-21 19:00:50,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:00:50,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346932296] [2021-10-21 19:00:50,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:00:50,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:00:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:00:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:00:50,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:00:50,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346932296] [2021-10-21 19:00:50,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346932296] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:50,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:50,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:00:50,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101536353] [2021-10-21 19:00:50,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:00:50,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:00:50,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:00:50,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:00:50,865 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 128 [2021-10-21 19:00:50,867 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 120 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 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) [2021-10-21 19:00:50,867 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:00:50,867 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 128 [2021-10-21 19:00:50,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:00:51,080 INFO L129 PetriNetUnfolder]: 30/274 cut-off events. [2021-10-21 19:00:51,080 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-21 19:00:51,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 274 events. 30/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 920 event pairs, 6 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 315. Up to 36 conditions per place. [2021-10-21 19:00:51,085 INFO L132 encePairwiseOnDemand]: 121/128 looper letters, 8 selfloop transitions, 3 changer transitions 33/143 dead transitions. [2021-10-21 19:00:51,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 143 transitions, 364 flow [2021-10-21 19:00:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:00:51,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 19:00:51,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1070 transitions. [2021-10-21 19:00:51,091 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9288194444444444 [2021-10-21 19:00:51,091 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1070 transitions. [2021-10-21 19:00:51,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1070 transitions. [2021-10-21 19:00:51,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:00:51,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1070 transitions. [2021-10-21 19:00:51,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.88888888888889) internal successors, (1070), 9 states have internal predecessors, (1070), 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) [2021-10-21 19:00:51,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-10-21 19:00:51,104 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-10-21 19:00:51,104 INFO L186 Difference]: Start difference. First operand has 131 places, 120 transitions, 252 flow. Second operand 9 states and 1070 transitions. [2021-10-21 19:00:51,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 143 transitions, 364 flow [2021-10-21 19:00:51,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 143 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-21 19:00:51,112 INFO L242 Difference]: Finished difference. Result has 144 places, 110 transitions, 267 flow [2021-10-21 19:00:51,112 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=267, PETRI_PLACES=144, PETRI_TRANSITIONS=110} [2021-10-21 19:00:51,113 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 9 predicate places. [2021-10-21 19:00:51,113 INFO L470 AbstractCegarLoop]: Abstraction has has 144 places, 110 transitions, 267 flow [2021-10-21 19:00:51,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 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) [2021-10-21 19:00:51,114 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:00:51,114 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] [2021-10-21 19:00:51,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:00:51,115 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:00:51,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:00:51,116 INFO L82 PathProgramCache]: Analyzing trace with hash -361338143, now seen corresponding path program 1 times [2021-10-21 19:00:51,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:00:51,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466549981] [2021-10-21 19:00:51,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:00:51,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:00:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:00:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:00:51,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:00:51,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466549981] [2021-10-21 19:00:51,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466549981] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:51,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:51,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:00:51,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158517615] [2021-10-21 19:00:51,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:00:51,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:00:51,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:00:51,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:00:51,479 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 128 [2021-10-21 19:00:51,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 110 transitions, 267 flow. Second operand has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 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) [2021-10-21 19:00:51,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:00:51,481 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 128 [2021-10-21 19:00:51,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:00:51,662 INFO L129 PetriNetUnfolder]: 28/212 cut-off events. [2021-10-21 19:00:51,662 INFO L130 PetriNetUnfolder]: For 171/172 co-relation queries the response was YES. [2021-10-21 19:00:51,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 212 events. 28/212 cut-off events. For 171/172 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 590 event pairs, 9 based on Foata normal form. 6/212 useless extension candidates. Maximal degree in co-relation 380. Up to 31 conditions per place. [2021-10-21 19:00:51,665 INFO L132 encePairwiseOnDemand]: 122/128 looper letters, 6 selfloop transitions, 2 changer transitions 10/120 dead transitions. [2021-10-21 19:00:51,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 120 transitions, 341 flow [2021-10-21 19:00:51,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:00:51,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 19:00:51,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1064 transitions. [2021-10-21 19:00:51,670 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9236111111111112 [2021-10-21 19:00:51,670 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1064 transitions. [2021-10-21 19:00:51,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1064 transitions. [2021-10-21 19:00:51,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:00:51,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1064 transitions. [2021-10-21 19:00:51,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.22222222222223) internal successors, (1064), 9 states have internal predecessors, (1064), 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) [2021-10-21 19:00:51,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-10-21 19:00:51,680 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-10-21 19:00:51,681 INFO L186 Difference]: Start difference. First operand has 144 places, 110 transitions, 267 flow. Second operand 9 states and 1064 transitions. [2021-10-21 19:00:51,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 120 transitions, 341 flow [2021-10-21 19:00:51,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 120 transitions, 324 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-10-21 19:00:51,692 INFO L242 Difference]: Finished difference. Result has 137 places, 110 transitions, 278 flow [2021-10-21 19:00:51,693 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=278, PETRI_PLACES=137, PETRI_TRANSITIONS=110} [2021-10-21 19:00:51,693 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 2 predicate places. [2021-10-21 19:00:51,693 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 110 transitions, 278 flow [2021-10-21 19:00:51,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 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) [2021-10-21 19:00:51,695 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:00:51,695 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] [2021-10-21 19:00:51,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:00:51,696 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:00:51,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:00:51,698 INFO L82 PathProgramCache]: Analyzing trace with hash 673680306, now seen corresponding path program 1 times [2021-10-21 19:00:51,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:00:51,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579542082] [2021-10-21 19:00:51,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:00:51,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:00:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:00:52,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:00:52,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:00:52,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579542082] [2021-10-21 19:00:52,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579542082] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:52,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:52,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-21 19:00:52,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469254959] [2021-10-21 19:00:52,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:00:52,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:00:52,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:00:52,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:00:52,132 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 128 [2021-10-21 19:00:52,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 110 transitions, 278 flow. Second operand has 9 states, 9 states have (on average 109.11111111111111) internal successors, (982), 9 states have internal predecessors, (982), 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) [2021-10-21 19:00:52,137 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:00:52,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 128 [2021-10-21 19:00:52,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:00:53,003 INFO L129 PetriNetUnfolder]: 800/1569 cut-off events. [2021-10-21 19:00:53,003 INFO L130 PetriNetUnfolder]: For 1877/1882 co-relation queries the response was YES. [2021-10-21 19:00:53,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3948 conditions, 1569 events. 800/1569 cut-off events. For 1877/1882 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 9766 event pairs, 339 based on Foata normal form. 42/1543 useless extension candidates. Maximal degree in co-relation 3882. Up to 669 conditions per place. [2021-10-21 19:00:53,033 INFO L132 encePairwiseOnDemand]: 116/128 looper letters, 13 selfloop transitions, 11 changer transitions 43/162 dead transitions. [2021-10-21 19:00:53,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 162 transitions, 560 flow [2021-10-21 19:00:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:00:53,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-21 19:00:53,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1582 transitions. [2021-10-21 19:00:53,040 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8828125 [2021-10-21 19:00:53,040 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1582 transitions. [2021-10-21 19:00:53,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1582 transitions. [2021-10-21 19:00:53,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:00:53,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1582 transitions. [2021-10-21 19:00:53,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 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) [2021-10-21 19:00:53,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-10-21 19:00:53,060 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-10-21 19:00:53,060 INFO L186 Difference]: Start difference. First operand has 137 places, 110 transitions, 278 flow. Second operand 14 states and 1582 transitions. [2021-10-21 19:00:53,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 162 transitions, 560 flow [2021-10-21 19:00:53,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 162 transitions, 520 flow, removed 18 selfloop flow, removed 8 redundant places. [2021-10-21 19:00:53,082 INFO L242 Difference]: Finished difference. Result has 147 places, 118 transitions, 360 flow [2021-10-21 19:00:53,083 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=360, PETRI_PLACES=147, PETRI_TRANSITIONS=118} [2021-10-21 19:00:53,083 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 12 predicate places. [2021-10-21 19:00:53,084 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 118 transitions, 360 flow [2021-10-21 19:00:53,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 109.11111111111111) internal successors, (982), 9 states have internal predecessors, (982), 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) [2021-10-21 19:00:53,086 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:00:53,086 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] [2021-10-21 19:00:53,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:00:53,087 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:00:53,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:00:53,088 INFO L82 PathProgramCache]: Analyzing trace with hash 914579007, now seen corresponding path program 1 times [2021-10-21 19:00:53,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:00:53,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493968750] [2021-10-21 19:00:53,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:00:53,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:00:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:00:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:00:53,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:00:53,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493968750] [2021-10-21 19:00:53,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493968750] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:53,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:53,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-21 19:00:53,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775534039] [2021-10-21 19:00:53,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:00:53,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:00:53,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:00:53,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:00:53,434 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 128 [2021-10-21 19:00:53,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 118 transitions, 360 flow. Second operand has 10 states, 10 states have (on average 108.2) internal successors, (1082), 10 states have internal predecessors, (1082), 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) [2021-10-21 19:00:53,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:00:53,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 128 [2021-10-21 19:00:53,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:00:54,193 INFO L129 PetriNetUnfolder]: 607/1253 cut-off events. [2021-10-21 19:00:54,193 INFO L130 PetriNetUnfolder]: For 3866/4055 co-relation queries the response was YES. [2021-10-21 19:00:54,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4407 conditions, 1253 events. 607/1253 cut-off events. For 3866/4055 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 7566 event pairs, 90 based on Foata normal form. 33/1233 useless extension candidates. Maximal degree in co-relation 4332. Up to 513 conditions per place. [2021-10-21 19:00:54,220 INFO L132 encePairwiseOnDemand]: 119/128 looper letters, 31 selfloop transitions, 8 changer transitions 25/158 dead transitions. [2021-10-21 19:00:54,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 158 transitions, 740 flow [2021-10-21 19:00:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:00:54,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-21 19:00:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1343 transitions. [2021-10-21 19:00:54,226 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8743489583333334 [2021-10-21 19:00:54,226 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1343 transitions. [2021-10-21 19:00:54,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1343 transitions. [2021-10-21 19:00:54,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:00:54,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1343 transitions. [2021-10-21 19:00:54,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 111.91666666666667) internal successors, (1343), 12 states have internal predecessors, (1343), 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) [2021-10-21 19:00:54,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 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) [2021-10-21 19:00:54,238 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 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) [2021-10-21 19:00:54,238 INFO L186 Difference]: Start difference. First operand has 147 places, 118 transitions, 360 flow. Second operand 12 states and 1343 transitions. [2021-10-21 19:00:54,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 158 transitions, 740 flow [2021-10-21 19:00:54,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 158 transitions, 712 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-10-21 19:00:54,254 INFO L242 Difference]: Finished difference. Result has 153 places, 120 transitions, 406 flow [2021-10-21 19:00:54,254 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=406, PETRI_PLACES=153, PETRI_TRANSITIONS=120} [2021-10-21 19:00:54,255 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 18 predicate places. [2021-10-21 19:00:54,255 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 120 transitions, 406 flow [2021-10-21 19:00:54,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 108.2) internal successors, (1082), 10 states have internal predecessors, (1082), 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) [2021-10-21 19:00:54,256 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:00:54,256 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] [2021-10-21 19:00:54,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:00:54,257 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:00:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:00:54,257 INFO L82 PathProgramCache]: Analyzing trace with hash 500492630, now seen corresponding path program 1 times [2021-10-21 19:00:54,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:00:54,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475389497] [2021-10-21 19:00:54,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:00:54,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:00:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:00:54,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:00:54,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:00:54,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475389497] [2021-10-21 19:00:54,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475389497] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:54,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:54,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-21 19:00:54,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763492694] [2021-10-21 19:00:54,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:00:54,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:00:54,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:00:54,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:00:54,642 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 128 [2021-10-21 19:00:54,644 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 120 transitions, 406 flow. Second operand has 10 states, 10 states have (on average 107.3) internal successors, (1073), 10 states have internal predecessors, (1073), 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) [2021-10-21 19:00:54,644 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:00:54,644 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 128 [2021-10-21 19:00:54,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:00:55,476 INFO L129 PetriNetUnfolder]: 591/1262 cut-off events. [2021-10-21 19:00:55,477 INFO L130 PetriNetUnfolder]: For 5179/5351 co-relation queries the response was YES. [2021-10-21 19:00:55,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4753 conditions, 1262 events. 591/1262 cut-off events. For 5179/5351 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 7679 event pairs, 230 based on Foata normal form. 50/1247 useless extension candidates. Maximal degree in co-relation 4669. Up to 454 conditions per place. [2021-10-21 19:00:55,502 INFO L132 encePairwiseOnDemand]: 115/128 looper letters, 16 selfloop transitions, 15 changer transitions 42/166 dead transitions. [2021-10-21 19:00:55,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 166 transitions, 910 flow [2021-10-21 19:00:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-21 19:00:55,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-21 19:00:55,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1871 transitions. [2021-10-21 19:00:55,512 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8598345588235294 [2021-10-21 19:00:55,512 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1871 transitions. [2021-10-21 19:00:55,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1871 transitions. [2021-10-21 19:00:55,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:00:55,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1871 transitions. [2021-10-21 19:00:55,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 110.05882352941177) internal successors, (1871), 17 states have internal predecessors, (1871), 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) [2021-10-21 19:00:55,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 128.0) internal successors, (2304), 18 states have internal predecessors, (2304), 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) [2021-10-21 19:00:55,530 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 128.0) internal successors, (2304), 18 states have internal predecessors, (2304), 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) [2021-10-21 19:00:55,530 INFO L186 Difference]: Start difference. First operand has 153 places, 120 transitions, 406 flow. Second operand 17 states and 1871 transitions. [2021-10-21 19:00:55,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 166 transitions, 910 flow [2021-10-21 19:00:55,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 166 transitions, 836 flow, removed 30 selfloop flow, removed 9 redundant places. [2021-10-21 19:00:55,547 INFO L242 Difference]: Finished difference. Result has 165 places, 122 transitions, 480 flow [2021-10-21 19:00:55,548 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=480, PETRI_PLACES=165, PETRI_TRANSITIONS=122} [2021-10-21 19:00:55,548 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 30 predicate places. [2021-10-21 19:00:55,548 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 122 transitions, 480 flow [2021-10-21 19:00:55,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 107.3) internal successors, (1073), 10 states have internal predecessors, (1073), 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) [2021-10-21 19:00:55,549 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:00:55,550 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] [2021-10-21 19:00:55,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:00:55,551 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:00:55,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:00:55,551 INFO L82 PathProgramCache]: Analyzing trace with hash -702138755, now seen corresponding path program 1 times [2021-10-21 19:00:55,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:00:55,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345687699] [2021-10-21 19:00:55,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:00:55,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:00:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:00:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:00:55,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:00:55,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345687699] [2021-10-21 19:00:55,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345687699] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:55,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:55,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-21 19:00:55,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162568785] [2021-10-21 19:00:55,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:00:55,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:00:55,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:00:55,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:00:55,918 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 128 [2021-10-21 19:00:55,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 122 transitions, 480 flow. Second operand has 12 states, 12 states have (on average 106.25) internal successors, (1275), 12 states have internal predecessors, (1275), 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) [2021-10-21 19:00:55,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:00:55,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 128 [2021-10-21 19:00:55,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:00:56,642 INFO L129 PetriNetUnfolder]: 471/1048 cut-off events. [2021-10-21 19:00:56,643 INFO L130 PetriNetUnfolder]: For 8102/8796 co-relation queries the response was YES. [2021-10-21 19:00:56,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4986 conditions, 1048 events. 471/1048 cut-off events. For 8102/8796 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6086 event pairs, 59 based on Foata normal form. 34/1033 useless extension candidates. Maximal degree in co-relation 4893. Up to 443 conditions per place. [2021-10-21 19:00:56,671 INFO L132 encePairwiseOnDemand]: 115/128 looper letters, 26 selfloop transitions, 15 changer transitions 25/158 dead transitions. [2021-10-21 19:00:56,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 158 transitions, 960 flow [2021-10-21 19:00:56,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:00:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-21 19:00:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1527 transitions. [2021-10-21 19:00:56,677 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8521205357142857 [2021-10-21 19:00:56,677 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1527 transitions. [2021-10-21 19:00:56,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1527 transitions. [2021-10-21 19:00:56,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:00:56,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1527 transitions. [2021-10-21 19:00:56,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 109.07142857142857) internal successors, (1527), 14 states have internal predecessors, (1527), 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) [2021-10-21 19:00:56,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-10-21 19:00:56,737 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-10-21 19:00:56,737 INFO L186 Difference]: Start difference. First operand has 165 places, 122 transitions, 480 flow. Second operand 14 states and 1527 transitions. [2021-10-21 19:00:56,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 158 transitions, 960 flow [2021-10-21 19:00:56,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 158 transitions, 872 flow, removed 33 selfloop flow, removed 15 redundant places. [2021-10-21 19:00:56,757 INFO L242 Difference]: Finished difference. Result has 162 places, 128 transitions, 553 flow [2021-10-21 19:00:56,757 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=553, PETRI_PLACES=162, PETRI_TRANSITIONS=128} [2021-10-21 19:00:56,758 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 27 predicate places. [2021-10-21 19:00:56,758 INFO L470 AbstractCegarLoop]: Abstraction has has 162 places, 128 transitions, 553 flow [2021-10-21 19:00:56,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.25) internal successors, (1275), 12 states have internal predecessors, (1275), 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) [2021-10-21 19:00:56,759 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:00:56,759 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] [2021-10-21 19:00:56,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:00:56,759 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:00:56,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:00:56,760 INFO L82 PathProgramCache]: Analyzing trace with hash 2122650005, now seen corresponding path program 2 times [2021-10-21 19:00:56,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:00:56,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434633493] [2021-10-21 19:00:56,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:00:56,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:00:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:00:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:00:57,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:00:57,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434633493] [2021-10-21 19:00:57,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434633493] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:57,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:57,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-21 19:00:57,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599733657] [2021-10-21 19:00:57,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:00:57,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:00:57,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:00:57,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:00:57,063 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 128 [2021-10-21 19:00:57,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 128 transitions, 553 flow. Second operand has 10 states, 10 states have (on average 108.3) internal successors, (1083), 10 states have internal predecessors, (1083), 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) [2021-10-21 19:00:57,065 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:00:57,065 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 128 [2021-10-21 19:00:57,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:00:58,022 INFO L129 PetriNetUnfolder]: 557/1304 cut-off events. [2021-10-21 19:00:58,022 INFO L130 PetriNetUnfolder]: For 17010/19770 co-relation queries the response was YES. [2021-10-21 19:00:58,041 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7806 conditions, 1304 events. 557/1304 cut-off events. For 17010/19770 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8236 event pairs, 37 based on Foata normal form. 51/1299 useless extension candidates. Maximal degree in co-relation 7717. Up to 476 conditions per place. [2021-10-21 19:00:58,059 INFO L132 encePairwiseOnDemand]: 116/128 looper letters, 28 selfloop transitions, 18 changer transitions 25/165 dead transitions. [2021-10-21 19:00:58,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 1267 flow [2021-10-21 19:00:58,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:00:58,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-21 19:00:58,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1556 transitions. [2021-10-21 19:00:58,065 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8683035714285714 [2021-10-21 19:00:58,065 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1556 transitions. [2021-10-21 19:00:58,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1556 transitions. [2021-10-21 19:00:58,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:00:58,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1556 transitions. [2021-10-21 19:00:58,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 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) [2021-10-21 19:00:58,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-10-21 19:00:58,078 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-10-21 19:00:58,079 INFO L186 Difference]: Start difference. First operand has 162 places, 128 transitions, 553 flow. Second operand 14 states and 1556 transitions. [2021-10-21 19:00:58,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 1267 flow [2021-10-21 19:00:58,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 165 transitions, 1132 flow, removed 61 selfloop flow, removed 10 redundant places. [2021-10-21 19:00:58,122 INFO L242 Difference]: Finished difference. Result has 166 places, 131 transitions, 627 flow [2021-10-21 19:00:58,123 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=627, PETRI_PLACES=166, PETRI_TRANSITIONS=131} [2021-10-21 19:00:58,123 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 31 predicate places. [2021-10-21 19:00:58,123 INFO L470 AbstractCegarLoop]: Abstraction has has 166 places, 131 transitions, 627 flow [2021-10-21 19:00:58,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 108.3) internal successors, (1083), 10 states have internal predecessors, (1083), 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) [2021-10-21 19:00:58,124 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:00:58,124 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] [2021-10-21 19:00:58,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:00:58,125 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:00:58,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:00:58,125 INFO L82 PathProgramCache]: Analyzing trace with hash -40635891, now seen corresponding path program 1 times [2021-10-21 19:00:58,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:00:58,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848271036] [2021-10-21 19:00:58,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:00:58,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:00:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:00:58,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:00:58,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:00:58,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848271036] [2021-10-21 19:00:58,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848271036] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:58,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:58,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-21 19:00:58,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101475699] [2021-10-21 19:00:58,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:00:58,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:00:58,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:00:58,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:00:58,520 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 128 [2021-10-21 19:00:58,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 131 transitions, 627 flow. Second operand has 12 states, 12 states have (on average 106.33333333333333) internal successors, (1276), 12 states have internal predecessors, (1276), 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) [2021-10-21 19:00:58,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:00:58,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 128 [2021-10-21 19:00:58,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:00:59,319 INFO L129 PetriNetUnfolder]: 461/1086 cut-off events. [2021-10-21 19:00:59,319 INFO L130 PetriNetUnfolder]: For 19683/22131 co-relation queries the response was YES. [2021-10-21 19:00:59,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7168 conditions, 1086 events. 461/1086 cut-off events. For 19683/22131 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6441 event pairs, 67 based on Foata normal form. 38/1065 useless extension candidates. Maximal degree in co-relation 7076. Up to 538 conditions per place. [2021-10-21 19:00:59,356 INFO L132 encePairwiseOnDemand]: 115/128 looper letters, 35 selfloop transitions, 17 changer transitions 19/163 dead transitions. [2021-10-21 19:00:59,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 163 transitions, 1351 flow [2021-10-21 19:00:59,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:00:59,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-21 19:00:59,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1416 transitions. [2021-10-21 19:00:59,363 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8509615384615384 [2021-10-21 19:00:59,364 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1416 transitions. [2021-10-21 19:00:59,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1416 transitions. [2021-10-21 19:00:59,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:00:59,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1416 transitions. [2021-10-21 19:00:59,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 108.92307692307692) internal successors, (1416), 13 states have internal predecessors, (1416), 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) [2021-10-21 19:00:59,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-10-21 19:00:59,377 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-10-21 19:00:59,378 INFO L186 Difference]: Start difference. First operand has 166 places, 131 transitions, 627 flow. Second operand 13 states and 1416 transitions. [2021-10-21 19:00:59,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 163 transitions, 1351 flow [2021-10-21 19:00:59,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 163 transitions, 1135 flow, removed 98 selfloop flow, removed 12 redundant places. [2021-10-21 19:00:59,411 INFO L242 Difference]: Finished difference. Result has 168 places, 139 transitions, 725 flow [2021-10-21 19:00:59,411 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=725, PETRI_PLACES=168, PETRI_TRANSITIONS=139} [2021-10-21 19:00:59,412 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 33 predicate places. [2021-10-21 19:00:59,412 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 139 transitions, 725 flow [2021-10-21 19:00:59,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.33333333333333) internal successors, (1276), 12 states have internal predecessors, (1276), 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) [2021-10-21 19:00:59,413 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:00:59,413 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] [2021-10-21 19:00:59,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-21 19:00:59,415 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:00:59,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:00:59,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1867081149, now seen corresponding path program 2 times [2021-10-21 19:00:59,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:00:59,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709226201] [2021-10-21 19:00:59,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:00:59,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:00:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:00:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:00:59,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:00:59,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709226201] [2021-10-21 19:00:59,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709226201] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:00:59,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:00:59,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-21 19:00:59,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244580509] [2021-10-21 19:00:59,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-21 19:00:59,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:00:59,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 19:00:59,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:00:59,790 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 128 [2021-10-21 19:00:59,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 139 transitions, 725 flow. Second operand has 13 states, 13 states have (on average 105.3076923076923) internal successors, (1369), 13 states have internal predecessors, (1369), 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) [2021-10-21 19:00:59,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:00:59,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 128 [2021-10-21 19:00:59,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:01:00,364 INFO L129 PetriNetUnfolder]: 468/1100 cut-off events. [2021-10-21 19:01:00,364 INFO L130 PetriNetUnfolder]: For 18752/21646 co-relation queries the response was YES. [2021-10-21 19:01:00,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7114 conditions, 1100 events. 468/1100 cut-off events. For 18752/21646 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6414 event pairs, 84 based on Foata normal form. 52/1095 useless extension candidates. Maximal degree in co-relation 7020. Up to 566 conditions per place. [2021-10-21 19:01:00,405 INFO L132 encePairwiseOnDemand]: 115/128 looper letters, 37 selfloop transitions, 26 changer transitions 10/164 dead transitions. [2021-10-21 19:01:00,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 164 transitions, 1333 flow [2021-10-21 19:01:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:01:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-21 19:01:00,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1186 transitions. [2021-10-21 19:01:00,408 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8423295454545454 [2021-10-21 19:01:00,408 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1186 transitions. [2021-10-21 19:01:00,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1186 transitions. [2021-10-21 19:01:00,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:01:00,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1186 transitions. [2021-10-21 19:01:00,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 107.81818181818181) internal successors, (1186), 11 states have internal predecessors, (1186), 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) [2021-10-21 19:01:00,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 128.0) internal successors, (1536), 12 states have internal predecessors, (1536), 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) [2021-10-21 19:01:00,418 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 128.0) internal successors, (1536), 12 states have internal predecessors, (1536), 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) [2021-10-21 19:01:00,418 INFO L186 Difference]: Start difference. First operand has 168 places, 139 transitions, 725 flow. Second operand 11 states and 1186 transitions. [2021-10-21 19:01:00,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 164 transitions, 1333 flow [2021-10-21 19:01:00,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 164 transitions, 1163 flow, removed 76 selfloop flow, removed 9 redundant places. [2021-10-21 19:01:00,491 INFO L242 Difference]: Finished difference. Result has 167 places, 150 transitions, 904 flow [2021-10-21 19:01:00,491 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=904, PETRI_PLACES=167, PETRI_TRANSITIONS=150} [2021-10-21 19:01:00,491 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 32 predicate places. [2021-10-21 19:01:00,492 INFO L470 AbstractCegarLoop]: Abstraction has has 167 places, 150 transitions, 904 flow [2021-10-21 19:01:00,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 105.3076923076923) internal successors, (1369), 13 states have internal predecessors, (1369), 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) [2021-10-21 19:01:00,492 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:01:00,493 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] [2021-10-21 19:01:00,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:01:00,493 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:01:00,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:01:00,493 INFO L82 PathProgramCache]: Analyzing trace with hash 305586495, now seen corresponding path program 3 times [2021-10-21 19:01:00,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:01:00,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269264628] [2021-10-21 19:01:00,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:01:00,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:01:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:01:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:01:00,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:01:00,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269264628] [2021-10-21 19:01:00,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269264628] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:01:00,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:01:00,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-21 19:01:00,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078769390] [2021-10-21 19:01:00,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:01:00,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:01:00,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:01:00,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:01:00,856 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 128 [2021-10-21 19:01:00,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 150 transitions, 904 flow. Second operand has 12 states, 12 states have (on average 104.5) internal successors, (1254), 12 states have internal predecessors, (1254), 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) [2021-10-21 19:01:00,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:01:00,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 128 [2021-10-21 19:01:00,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:01:01,632 INFO L129 PetriNetUnfolder]: 477/1329 cut-off events. [2021-10-21 19:01:01,632 INFO L130 PetriNetUnfolder]: For 17067/22847 co-relation queries the response was YES. [2021-10-21 19:01:01,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7534 conditions, 1329 events. 477/1329 cut-off events. For 17067/22847 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 9089 event pairs, 64 based on Foata normal form. 58/1327 useless extension candidates. Maximal degree in co-relation 7439. Up to 472 conditions per place. [2021-10-21 19:01:01,671 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 56 selfloop transitions, 16 changer transitions 19/181 dead transitions. [2021-10-21 19:01:01,672 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 181 transitions, 1617 flow [2021-10-21 19:01:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:01:01,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-21 19:01:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1392 transitions. [2021-10-21 19:01:01,675 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8365384615384616 [2021-10-21 19:01:01,675 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1392 transitions. [2021-10-21 19:01:01,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1392 transitions. [2021-10-21 19:01:01,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:01:01,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1392 transitions. [2021-10-21 19:01:01,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.07692307692308) internal successors, (1392), 13 states have internal predecessors, (1392), 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) [2021-10-21 19:01:01,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-10-21 19:01:01,684 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-10-21 19:01:01,684 INFO L186 Difference]: Start difference. First operand has 167 places, 150 transitions, 904 flow. Second operand 13 states and 1392 transitions. [2021-10-21 19:01:01,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 181 transitions, 1617 flow [2021-10-21 19:01:01,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 181 transitions, 1502 flow, removed 55 selfloop flow, removed 6 redundant places. [2021-10-21 19:01:01,731 INFO L242 Difference]: Finished difference. Result has 177 places, 154 transitions, 970 flow [2021-10-21 19:01:01,732 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=970, PETRI_PLACES=177, PETRI_TRANSITIONS=154} [2021-10-21 19:01:01,732 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 42 predicate places. [2021-10-21 19:01:01,732 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 154 transitions, 970 flow [2021-10-21 19:01:01,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.5) internal successors, (1254), 12 states have internal predecessors, (1254), 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) [2021-10-21 19:01:01,734 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:01:01,734 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] [2021-10-21 19:01:01,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 19:01:01,734 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:01:01,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:01:01,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2099783087, now seen corresponding path program 1 times [2021-10-21 19:01:01,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:01:01,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190654334] [2021-10-21 19:01:01,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:01:01,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:01:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:01:01,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:01:01,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:01:01,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190654334] [2021-10-21 19:01:01,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190654334] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:01:01,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:01:01,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:01:01,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997596258] [2021-10-21 19:01:01,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:01:01,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:01:01,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:01:01,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:01:01,849 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 128 [2021-10-21 19:01:01,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 154 transitions, 970 flow. Second operand has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 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) [2021-10-21 19:01:01,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:01:01,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 128 [2021-10-21 19:01:01,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:01:03,143 INFO L129 PetriNetUnfolder]: 2680/5681 cut-off events. [2021-10-21 19:01:03,143 INFO L130 PetriNetUnfolder]: For 39025/40949 co-relation queries the response was YES. [2021-10-21 19:01:03,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20039 conditions, 5681 events. 2680/5681 cut-off events. For 39025/40949 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 52296 event pairs, 304 based on Foata normal form. 53/5035 useless extension candidates. Maximal degree in co-relation 19946. Up to 1365 conditions per place. [2021-10-21 19:01:03,292 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 29 selfloop transitions, 20 changer transitions 0/191 dead transitions. [2021-10-21 19:01:03,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 191 transitions, 1142 flow [2021-10-21 19:01:03,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:01:03,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-21 19:01:03,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1181 transitions. [2021-10-21 19:01:03,295 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.92265625 [2021-10-21 19:01:03,295 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1181 transitions. [2021-10-21 19:01:03,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1181 transitions. [2021-10-21 19:01:03,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:01:03,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1181 transitions. [2021-10-21 19:01:03,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 118.1) internal successors, (1181), 10 states have internal predecessors, (1181), 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) [2021-10-21 19:01:03,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2021-10-21 19:01:03,302 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2021-10-21 19:01:03,302 INFO L186 Difference]: Start difference. First operand has 177 places, 154 transitions, 970 flow. Second operand 10 states and 1181 transitions. [2021-10-21 19:01:03,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 191 transitions, 1142 flow [2021-10-21 19:01:03,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 191 transitions, 1088 flow, removed 21 selfloop flow, removed 10 redundant places. [2021-10-21 19:01:03,453 INFO L242 Difference]: Finished difference. Result has 176 places, 172 transitions, 1059 flow [2021-10-21 19:01:03,454 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1059, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2021-10-21 19:01:03,454 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 41 predicate places. [2021-10-21 19:01:03,454 INFO L470 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 1059 flow [2021-10-21 19:01:03,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 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) [2021-10-21 19:01:03,455 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:01:03,455 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] [2021-10-21 19:01:03,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 19:01:03,455 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:01:03,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:01:03,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1855671906, now seen corresponding path program 1 times [2021-10-21 19:01:03,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:01:03,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908260873] [2021-10-21 19:01:03,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:01:03,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:01:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:01:03,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:01:03,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:01:03,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908260873] [2021-10-21 19:01:03,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908260873] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:01:03,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:01:03,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:01:03,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938572179] [2021-10-21 19:01:03,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:01:03,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:01:03,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:01:03,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:01:03,591 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 128 [2021-10-21 19:01:03,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 1059 flow. Second operand has 7 states, 7 states have (on average 114.14285714285714) internal successors, (799), 7 states have internal predecessors, (799), 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) [2021-10-21 19:01:03,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:01:03,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 128 [2021-10-21 19:01:03,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:01:04,848 INFO L129 PetriNetUnfolder]: 2276/5072 cut-off events. [2021-10-21 19:01:04,849 INFO L130 PetriNetUnfolder]: For 25121/38434 co-relation queries the response was YES. [2021-10-21 19:01:04,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20701 conditions, 5072 events. 2276/5072 cut-off events. For 25121/38434 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 48293 event pairs, 107 based on Foata normal form. 584/5094 useless extension candidates. Maximal degree in co-relation 20609. Up to 2163 conditions per place. [2021-10-21 19:01:04,933 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 34 selfloop transitions, 38 changer transitions 0/208 dead transitions. [2021-10-21 19:01:04,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 208 transitions, 1431 flow [2021-10-21 19:01:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:01:04,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-21 19:01:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1537 transitions. [2021-10-21 19:01:04,937 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9236778846153846 [2021-10-21 19:01:04,937 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1537 transitions. [2021-10-21 19:01:04,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1537 transitions. [2021-10-21 19:01:04,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:01:04,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1537 transitions. [2021-10-21 19:01:04,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.23076923076923) internal successors, (1537), 13 states have internal predecessors, (1537), 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) [2021-10-21 19:01:04,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-10-21 19:01:04,945 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-10-21 19:01:04,945 INFO L186 Difference]: Start difference. First operand has 176 places, 172 transitions, 1059 flow. Second operand 13 states and 1537 transitions. [2021-10-21 19:01:04,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 208 transitions, 1431 flow [2021-10-21 19:01:04,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 208 transitions, 1429 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-21 19:01:05,001 INFO L242 Difference]: Finished difference. Result has 193 places, 186 transitions, 1298 flow [2021-10-21 19:01:05,001 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1005, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1298, PETRI_PLACES=193, PETRI_TRANSITIONS=186} [2021-10-21 19:01:05,002 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 58 predicate places. [2021-10-21 19:01:05,002 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 186 transitions, 1298 flow [2021-10-21 19:01:05,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.14285714285714) internal successors, (799), 7 states have internal predecessors, (799), 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) [2021-10-21 19:01:05,003 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:01:05,003 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] [2021-10-21 19:01:05,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-21 19:01:05,003 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:01:05,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:01:05,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1415846651, now seen corresponding path program 1 times [2021-10-21 19:01:05,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:01:05,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963899220] [2021-10-21 19:01:05,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:01:05,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:01:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:01:05,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:01:05,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:01:05,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963899220] [2021-10-21 19:01:05,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963899220] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:01:05,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:01:05,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:01:05,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552687433] [2021-10-21 19:01:05,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:01:05,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:01:05,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:01:05,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:01:05,113 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 128 [2021-10-21 19:01:05,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 186 transitions, 1298 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2021-10-21 19:01:05,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:01:05,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 128 [2021-10-21 19:01:05,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:01:06,497 INFO L129 PetriNetUnfolder]: 1587/5255 cut-off events. [2021-10-21 19:01:06,497 INFO L130 PetriNetUnfolder]: For 36620/49246 co-relation queries the response was YES. [2021-10-21 19:01:06,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23254 conditions, 5255 events. 1587/5255 cut-off events. For 36620/49246 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 58445 event pairs, 189 based on Foata normal form. 147/4869 useless extension candidates. Maximal degree in co-relation 23154. Up to 1649 conditions per place. [2021-10-21 19:01:06,585 INFO L132 encePairwiseOnDemand]: 122/128 looper letters, 14 selfloop transitions, 11 changer transitions 0/200 dead transitions. [2021-10-21 19:01:06,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 200 transitions, 1462 flow [2021-10-21 19:01:06,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:01:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 19:01:06,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1061 transitions. [2021-10-21 19:01:06,587 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9210069444444444 [2021-10-21 19:01:06,588 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1061 transitions. [2021-10-21 19:01:06,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1061 transitions. [2021-10-21 19:01:06,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:01:06,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1061 transitions. [2021-10-21 19:01:06,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.88888888888889) internal successors, (1061), 9 states have internal predecessors, (1061), 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) [2021-10-21 19:01:06,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-10-21 19:01:06,593 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-10-21 19:01:06,593 INFO L186 Difference]: Start difference. First operand has 193 places, 186 transitions, 1298 flow. Second operand 9 states and 1061 transitions. [2021-10-21 19:01:06,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 200 transitions, 1462 flow [2021-10-21 19:01:06,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 200 transitions, 1359 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-10-21 19:01:06,926 INFO L242 Difference]: Finished difference. Result has 204 places, 194 transitions, 1334 flow [2021-10-21 19:01:06,927 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1201, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1334, PETRI_PLACES=204, PETRI_TRANSITIONS=194} [2021-10-21 19:01:06,927 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 69 predicate places. [2021-10-21 19:01:06,927 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 194 transitions, 1334 flow [2021-10-21 19:01:06,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2021-10-21 19:01:06,928 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:01:06,928 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] [2021-10-21 19:01:06,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-21 19:01:06,928 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:01:06,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:01:06,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1305626892, now seen corresponding path program 1 times [2021-10-21 19:01:06,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:01:06,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195647564] [2021-10-21 19:01:06,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:01:06,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:01:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:01:07,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:01:07,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:01:07,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195647564] [2021-10-21 19:01:07,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195647564] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:01:07,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:01:07,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 19:01:07,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968402306] [2021-10-21 19:01:07,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:01:07,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:01:07,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:01:07,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:01:07,106 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 128 [2021-10-21 19:01:07,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 194 transitions, 1334 flow. Second operand has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 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) [2021-10-21 19:01:07,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:01:07,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 128 [2021-10-21 19:01:07,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:01:08,637 INFO L129 PetriNetUnfolder]: 3145/6635 cut-off events. [2021-10-21 19:01:08,637 INFO L130 PetriNetUnfolder]: For 52768/79191 co-relation queries the response was YES. [2021-10-21 19:01:08,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31827 conditions, 6635 events. 3145/6635 cut-off events. For 52768/79191 co-relation queries the response was YES. Maximal size of possible extension queue 1081. Compared 65258 event pairs, 22 based on Foata normal form. 996/6771 useless extension candidates. Maximal degree in co-relation 31721. Up to 2396 conditions per place. [2021-10-21 19:01:08,754 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 28 selfloop transitions, 58 changer transitions 20/234 dead transitions. [2021-10-21 19:01:08,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 234 transitions, 1938 flow [2021-10-21 19:01:08,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-21 19:01:08,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-21 19:01:08,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1893 transitions. [2021-10-21 19:01:08,758 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.92431640625 [2021-10-21 19:01:08,759 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1893 transitions. [2021-10-21 19:01:08,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1893 transitions. [2021-10-21 19:01:08,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:01:08,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1893 transitions. [2021-10-21 19:01:08,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 118.3125) internal successors, (1893), 16 states have internal predecessors, (1893), 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) [2021-10-21 19:01:08,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 128.0) internal successors, (2176), 17 states have internal predecessors, (2176), 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) [2021-10-21 19:01:08,768 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 128.0) internal successors, (2176), 17 states have internal predecessors, (2176), 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) [2021-10-21 19:01:08,768 INFO L186 Difference]: Start difference. First operand has 204 places, 194 transitions, 1334 flow. Second operand 16 states and 1893 transitions. [2021-10-21 19:01:08,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 234 transitions, 1938 flow [2021-10-21 19:01:09,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 234 transitions, 1875 flow, removed 18 selfloop flow, removed 5 redundant places. [2021-10-21 19:01:09,265 INFO L242 Difference]: Finished difference. Result has 218 places, 204 transitions, 1562 flow [2021-10-21 19:01:09,265 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1181, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1562, PETRI_PLACES=218, PETRI_TRANSITIONS=204} [2021-10-21 19:01:09,265 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 83 predicate places. [2021-10-21 19:01:09,266 INFO L470 AbstractCegarLoop]: Abstraction has has 218 places, 204 transitions, 1562 flow [2021-10-21 19:01:09,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 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) [2021-10-21 19:01:09,266 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:01:09,267 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] [2021-10-21 19:01:09,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-21 19:01:09,267 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:01:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:01:09,268 INFO L82 PathProgramCache]: Analyzing trace with hash 727408154, now seen corresponding path program 1 times [2021-10-21 19:01:09,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:01:09,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719594547] [2021-10-21 19:01:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:01:09,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:01:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:01:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:01:09,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:01:09,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719594547] [2021-10-21 19:01:09,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719594547] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:01:09,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:01:09,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-21 19:01:09,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201732424] [2021-10-21 19:01:09,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:01:09,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:01:09,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:01:09,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:01:09,414 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 128 [2021-10-21 19:01:09,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 204 transitions, 1562 flow. Second operand has 9 states, 9 states have (on average 114.11111111111111) internal successors, (1027), 9 states have internal predecessors, (1027), 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) [2021-10-21 19:01:09,416 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:01:09,416 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 128 [2021-10-21 19:01:09,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:01:11,183 INFO L129 PetriNetUnfolder]: 2863/6171 cut-off events. [2021-10-21 19:01:11,183 INFO L130 PetriNetUnfolder]: For 64547/99874 co-relation queries the response was YES. [2021-10-21 19:01:11,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33480 conditions, 6171 events. 2863/6171 cut-off events. For 64547/99874 co-relation queries the response was YES. Maximal size of possible extension queue 1081. Compared 62155 event pairs, 0 based on Foata normal form. 958/6271 useless extension candidates. Maximal degree in co-relation 33426. Up to 2165 conditions per place. [2021-10-21 19:01:11,313 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 22 selfloop transitions, 63 changer transitions 26/237 dead transitions. [2021-10-21 19:01:11,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 237 transitions, 2082 flow [2021-10-21 19:01:11,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-21 19:01:11,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-21 19:01:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2229 transitions. [2021-10-21 19:01:11,320 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9165296052631579 [2021-10-21 19:01:11,320 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2229 transitions. [2021-10-21 19:01:11,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2229 transitions. [2021-10-21 19:01:11,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:01:11,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2229 transitions. [2021-10-21 19:01:11,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 117.3157894736842) internal successors, (2229), 19 states have internal predecessors, (2229), 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) [2021-10-21 19:01:11,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 128.0) internal successors, (2560), 20 states have internal predecessors, (2560), 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) [2021-10-21 19:01:11,333 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 128.0) internal successors, (2560), 20 states have internal predecessors, (2560), 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) [2021-10-21 19:01:11,333 INFO L186 Difference]: Start difference. First operand has 218 places, 204 transitions, 1562 flow. Second operand 19 states and 2229 transitions. [2021-10-21 19:01:11,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 237 transitions, 2082 flow [2021-10-21 19:01:13,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 237 transitions, 1572 flow, removed 209 selfloop flow, removed 22 redundant places. [2021-10-21 19:01:13,356 INFO L242 Difference]: Finished difference. Result has 215 places, 201 transitions, 1282 flow [2021-10-21 19:01:13,357 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1282, PETRI_PLACES=215, PETRI_TRANSITIONS=201} [2021-10-21 19:01:13,357 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 80 predicate places. [2021-10-21 19:01:13,357 INFO L470 AbstractCegarLoop]: Abstraction has has 215 places, 201 transitions, 1282 flow [2021-10-21 19:01:13,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 114.11111111111111) internal successors, (1027), 9 states have internal predecessors, (1027), 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) [2021-10-21 19:01:13,358 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:01:13,358 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] [2021-10-21 19:01:13,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-21 19:01:13,359 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:01:13,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:01:13,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1159722180, now seen corresponding path program 1 times [2021-10-21 19:01:13,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:01:13,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923148500] [2021-10-21 19:01:13,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:01:13,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:01:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:01:13,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:01:13,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:01:13,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923148500] [2021-10-21 19:01:13,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923148500] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:01:13,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:01:13,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:01:13,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694271014] [2021-10-21 19:01:13,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:01:13,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:01:13,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:01:13,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:01:13,516 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 128 [2021-10-21 19:01:13,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 201 transitions, 1282 flow. Second operand has 7 states, 7 states have (on average 114.57142857142857) internal successors, (802), 7 states have internal predecessors, (802), 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) [2021-10-21 19:01:13,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:01:13,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 128 [2021-10-21 19:01:13,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:01:14,877 INFO L129 PetriNetUnfolder]: 3148/8885 cut-off events. [2021-10-21 19:01:14,877 INFO L130 PetriNetUnfolder]: For 26504/29430 co-relation queries the response was YES. [2021-10-21 19:01:15,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30647 conditions, 8885 events. 3148/8885 cut-off events. For 26504/29430 co-relation queries the response was YES. Maximal size of possible extension queue 1401. Compared 109742 event pairs, 0 based on Foata normal form. 18/7933 useless extension candidates. Maximal degree in co-relation 30544. Up to 1044 conditions per place. [2021-10-21 19:01:15,049 INFO L132 encePairwiseOnDemand]: 122/128 looper letters, 11 selfloop transitions, 2 changer transitions 4/207 dead transitions. [2021-10-21 19:01:15,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 1332 flow [2021-10-21 19:01:15,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:01:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-21 19:01:15,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 809 transitions. [2021-10-21 19:01:15,052 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9029017857142857 [2021-10-21 19:01:15,052 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 809 transitions. [2021-10-21 19:01:15,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 809 transitions. [2021-10-21 19:01:15,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:01:15,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 809 transitions. [2021-10-21 19:01:15,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 115.57142857142857) internal successors, (809), 7 states have internal predecessors, (809), 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) [2021-10-21 19:01:15,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 128.0) internal successors, (1024), 8 states have internal predecessors, (1024), 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) [2021-10-21 19:01:15,058 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 128.0) internal successors, (1024), 8 states have internal predecessors, (1024), 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) [2021-10-21 19:01:15,058 INFO L186 Difference]: Start difference. First operand has 215 places, 201 transitions, 1282 flow. Second operand 7 states and 809 transitions. [2021-10-21 19:01:15,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 1332 flow [2021-10-21 19:01:16,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 207 transitions, 1172 flow, removed 32 selfloop flow, removed 20 redundant places. [2021-10-21 19:01:16,639 INFO L242 Difference]: Finished difference. Result has 203 places, 202 transitions, 1141 flow [2021-10-21 19:01:16,640 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1141, PETRI_PLACES=203, PETRI_TRANSITIONS=202} [2021-10-21 19:01:16,640 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 68 predicate places. [2021-10-21 19:01:16,640 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 202 transitions, 1141 flow [2021-10-21 19:01:16,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.57142857142857) internal successors, (802), 7 states have internal predecessors, (802), 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) [2021-10-21 19:01:16,641 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:01:16,641 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] [2021-10-21 19:01:16,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-21 19:01:16,642 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:01:16,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:01:16,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1694260766, now seen corresponding path program 2 times [2021-10-21 19:01:16,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:01:16,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516695893] [2021-10-21 19:01:16,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:01:16,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:01:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:01:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:01:16,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:01:16,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516695893] [2021-10-21 19:01:16,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516695893] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:01:16,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:01:16,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-21 19:01:16,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624552601] [2021-10-21 19:01:16,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:01:16,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:01:16,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:01:16,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:01:16,885 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 128 [2021-10-21 19:01:16,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 202 transitions, 1141 flow. Second operand has 12 states, 12 states have (on average 104.66666666666667) internal successors, (1256), 12 states have internal predecessors, (1256), 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) [2021-10-21 19:01:16,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:01:16,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 128 [2021-10-21 19:01:16,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:01:20,280 INFO L129 PetriNetUnfolder]: 6708/19619 cut-off events. [2021-10-21 19:01:20,280 INFO L130 PetriNetUnfolder]: For 36965/38418 co-relation queries the response was YES. [2021-10-21 19:01:20,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60044 conditions, 19619 events. 6708/19619 cut-off events. For 36965/38418 co-relation queries the response was YES. Maximal size of possible extension queue 2961. Compared 276001 event pairs, 10 based on Foata normal form. 29/17992 useless extension candidates. Maximal degree in co-relation 60005. Up to 2251 conditions per place. [2021-10-21 19:01:20,573 INFO L132 encePairwiseOnDemand]: 116/128 looper letters, 33 selfloop transitions, 5 changer transitions 100/291 dead transitions. [2021-10-21 19:01:20,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 291 transitions, 2189 flow [2021-10-21 19:01:20,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:01:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-21 19:01:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1498 transitions. [2021-10-21 19:01:20,576 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8359375 [2021-10-21 19:01:20,577 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1498 transitions. [2021-10-21 19:01:20,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1498 transitions. [2021-10-21 19:01:20,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:01:20,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1498 transitions. [2021-10-21 19:01:20,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2021-10-21 19:01:20,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-10-21 19:01:20,585 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-10-21 19:01:20,585 INFO L186 Difference]: Start difference. First operand has 203 places, 202 transitions, 1141 flow. Second operand 14 states and 1498 transitions. [2021-10-21 19:01:20,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 291 transitions, 2189 flow [2021-10-21 19:01:25,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 291 transitions, 2178 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-10-21 19:01:25,903 INFO L242 Difference]: Finished difference. Result has 216 places, 181 transitions, 963 flow [2021-10-21 19:01:25,903 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=963, PETRI_PLACES=216, PETRI_TRANSITIONS=181} [2021-10-21 19:01:25,903 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 81 predicate places. [2021-10-21 19:01:25,903 INFO L470 AbstractCegarLoop]: Abstraction has has 216 places, 181 transitions, 963 flow [2021-10-21 19:01:25,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.66666666666667) internal successors, (1256), 12 states have internal predecessors, (1256), 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) [2021-10-21 19:01:25,904 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:01:25,904 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] [2021-10-21 19:01:25,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-21 19:01:25,904 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:01:25,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:01:25,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1111873024, now seen corresponding path program 3 times [2021-10-21 19:01:25,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:01:25,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996146161] [2021-10-21 19:01:25,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:01:25,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:01:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:01:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:01:26,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:01:26,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996146161] [2021-10-21 19:01:26,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996146161] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:01:26,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:01:26,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-21 19:01:26,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841144399] [2021-10-21 19:01:26,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:01:26,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:01:26,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:01:26,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:01:26,378 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 128 [2021-10-21 19:01:26,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 181 transitions, 963 flow. Second operand has 14 states, 14 states have (on average 104.42857142857143) internal successors, (1462), 14 states have internal predecessors, (1462), 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) [2021-10-21 19:01:26,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:01:26,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 128 [2021-10-21 19:01:26,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:01:27,965 INFO L129 PetriNetUnfolder]: 2547/7477 cut-off events. [2021-10-21 19:01:27,965 INFO L130 PetriNetUnfolder]: For 13346/13764 co-relation queries the response was YES. [2021-10-21 19:01:28,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22143 conditions, 7477 events. 2547/7477 cut-off events. For 13346/13764 co-relation queries the response was YES. Maximal size of possible extension queue 990. Compared 89554 event pairs, 2 based on Foata normal form. 30/6813 useless extension candidates. Maximal degree in co-relation 22096. Up to 868 conditions per place. [2021-10-21 19:01:28,074 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 30 selfloop transitions, 13 changer transitions 5/201 dead transitions. [2021-10-21 19:01:28,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 201 transitions, 1199 flow [2021-10-21 19:01:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:01:28,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-21 19:01:28,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1277 transitions. [2021-10-21 19:01:28,077 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8313802083333334 [2021-10-21 19:01:28,078 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1277 transitions. [2021-10-21 19:01:28,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1277 transitions. [2021-10-21 19:01:28,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:01:28,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1277 transitions. [2021-10-21 19:01:28,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 106.41666666666667) internal successors, (1277), 12 states have internal predecessors, (1277), 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) [2021-10-21 19:01:28,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 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) [2021-10-21 19:01:28,086 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 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) [2021-10-21 19:01:28,087 INFO L186 Difference]: Start difference. First operand has 216 places, 181 transitions, 963 flow. Second operand 12 states and 1277 transitions. [2021-10-21 19:01:28,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 201 transitions, 1199 flow [2021-10-21 19:01:28,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 201 transitions, 1101 flow, removed 34 selfloop flow, removed 21 redundant places. [2021-10-21 19:01:28,694 INFO L242 Difference]: Finished difference. Result has 196 places, 186 transitions, 992 flow [2021-10-21 19:01:28,694 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=992, PETRI_PLACES=196, PETRI_TRANSITIONS=186} [2021-10-21 19:01:28,694 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 61 predicate places. [2021-10-21 19:01:28,694 INFO L470 AbstractCegarLoop]: Abstraction has has 196 places, 186 transitions, 992 flow [2021-10-21 19:01:28,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 104.42857142857143) internal successors, (1462), 14 states have internal predecessors, (1462), 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) [2021-10-21 19:01:28,695 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:01:28,695 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] [2021-10-21 19:01:28,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-21 19:01:28,696 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-21 19:01:28,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:01:28,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1868810502, now seen corresponding path program 4 times [2021-10-21 19:01:28,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:01:28,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526202885] [2021-10-21 19:01:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:01:28,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:01:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:01:28,750 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:01:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:01:28,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:01:28,874 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:01:28,875 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:01:28,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:01:28,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-21 19:01:28,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-21 19:01:28,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-21 19:01:28,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-21 19:01:28,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:01:28,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-21 19:01:28,892 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-21 19:01:28,893 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:01:29,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:01:29 BasicIcfg [2021-10-21 19:01:29,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:01:29,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:01:29,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:01:29,135 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:01:29,136 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:00:49" (3/4) ... [2021-10-21 19:01:29,139 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 19:01:29,503 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:01:29,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:01:29,505 INFO L168 Benchmark]: Toolchain (without parser) took 43020.69 ms. Allocated memory was 111.1 MB in the beginning and 5.9 GB in the end (delta: 5.8 GB). Free memory was 72.7 MB in the beginning and 5.1 GB in the end (delta: -5.1 GB). Peak memory consumption was 985.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:01:29,505 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 111.1 MB. Free memory is still 90.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:01:29,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.67 ms. Allocated memory is still 111.1 MB. Free memory was 72.6 MB in the beginning and 74.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:01:29,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.17 ms. Allocated memory is still 111.1 MB. Free memory was 74.4 MB in the beginning and 71.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:01:29,507 INFO L168 Benchmark]: Boogie Preprocessor took 81.05 ms. Allocated memory is still 111.1 MB. Free memory was 71.3 MB in the beginning and 69.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:01:29,507 INFO L168 Benchmark]: RCFGBuilder took 2135.46 ms. Allocated memory is still 111.1 MB. Free memory was 69.2 MB in the beginning and 51.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:01:29,508 INFO L168 Benchmark]: TraceAbstraction took 39539.89 ms. Allocated memory was 111.1 MB in the beginning and 5.9 GB in the end (delta: 5.8 GB). Free memory was 50.4 MB in the beginning and 4.9 GB in the end (delta: -4.9 GB). Peak memory consumption was 891.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:01:29,508 INFO L168 Benchmark]: Witness Printer took 368.04 ms. Allocated memory is still 5.9 GB. Free memory was 4.9 GB in the beginning and 5.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 72.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:01:29,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 111.1 MB. Free memory is still 90.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 780.67 ms. Allocated memory is still 111.1 MB. Free memory was 72.6 MB in the beginning and 74.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.17 ms. Allocated memory is still 111.1 MB. Free memory was 74.4 MB in the beginning and 71.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.05 ms. Allocated memory is still 111.1 MB. Free memory was 71.3 MB in the beginning and 69.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2135.46 ms. Allocated memory is still 111.1 MB. Free memory was 69.2 MB in the beginning and 51.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 39539.89 ms. Allocated memory was 111.1 MB in the beginning and 5.9 GB in the end (delta: 5.8 GB). Free memory was 50.4 MB in the beginning and 4.9 GB in the end (delta: -4.9 GB). Peak memory consumption was 891.0 MB. Max. memory is 16.1 GB. * Witness Printer took 368.04 ms. Allocated memory is still 5.9 GB. Free memory was 4.9 GB in the beginning and 5.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 72.4 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L712] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L714] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0] [L716] 0 int __unbuffered_p3_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0] [L718] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0] [L719] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0] [L720] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0] [L722] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L724] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L725] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L726] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L727] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L728] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L729] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L730] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L731] 0 _Bool y$r_buff0_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0] [L732] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0] [L733] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L734] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L735] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L736] 0 _Bool y$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0] [L737] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0] [L738] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L739] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L740] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L741] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L742] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L744] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L745] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L746] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L846] 0 pthread_t t577; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L847] FCALL, FORK 0 pthread_create(&t577, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L848] 0 pthread_t t578; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L849] FCALL, FORK 0 pthread_create(&t578, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L850] 0 pthread_t t579; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L851] FCALL, FORK 0 pthread_create(&t579, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L785] 3 y$w_buff1 = y$w_buff0 [L786] 3 y$w_buff0 = 2 [L787] 3 y$w_buff1_used = y$w_buff0_used [L788] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L790] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L791] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L792] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L793] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L794] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L798] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L852] 0 pthread_t t580; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L853] FCALL, FORK 0 pthread_create(&t580, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L818] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L821] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L753] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L765] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L768] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L825] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L825] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L826] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L827] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L828] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L828] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L860] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L860] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L861] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L861] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L862] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L862] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L863] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L863] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 y$flush_delayed = weak$$choice2 [L869] 0 y$mem_tmp = y [L870] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L870] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L871] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L871] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L872] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L872] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L873] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L873] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L874] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L875] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L876] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L878] 0 y = y$flush_delayed ? y$mem_tmp : y [L879] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 164 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 39140.6ms, OverallIterations: 20, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 33254.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 82.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 217 SDtfs, 714 SDslu, 897 SDs, 0 SdLazy, 1802 SolverSat, 450 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2559.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 3421.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1562occurred in iteration=15, InterpolantAutomatonStates: 229, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 110.3ms SsaConstructionTime, 1154.1ms SatisfiabilityAnalysisTime, 4014.4ms InterpolantComputationTime, 1764 NumberOfCodeBlocks, 1764 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1646 ConstructedInterpolants, 0 QuantifiedInterpolants, 9499 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:01:29,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fabcbd46-952a-49b7-b758-0799499cf07d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...