./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL --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 a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:47:16,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:47:16,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:47:16,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:47:16,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:47:16,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:47:16,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:47:16,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:47:16,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:47:16,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:47:16,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:47:16,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:47:16,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:47:16,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:47:16,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:47:16,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:47:16,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:47:16,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:47:16,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:47:16,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:47:16,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:47:16,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:47:16,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:47:16,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:47:16,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:47:16,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:47:16,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:47:16,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:47:16,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:47:16,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:47:16,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:47:16,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:47:16,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:47:16,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:47:16,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:47:16,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:47:16,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:47:16,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:47:16,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:47:16,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:47:16,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:47:16,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:47:16,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:47:16,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:47:16,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:47:16,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:47:16,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:47:16,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:47:16,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:47:16,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:47:16,280 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:47:16,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:47:16,281 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:47:16,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:47:16,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:47:16,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:47:16,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:47:16,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:47:16,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:47:16,283 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:47:16,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:47:16,283 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:47:16,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:47:16,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:47:16,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:47:16,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:47:16,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:47:16,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:47:16,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:47:16,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:47:16,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:47:16,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:47:16,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:47:16,287 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:47:16,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:47:16,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:47:16,288 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_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 [2021-11-19 04:47:16,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:47:16,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:47:16,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:47:16,567 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:47:16,568 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:47:16,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/pthread/stack-1.i [2021-11-19 04:47:16,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/data/cb35f43e1/ff6f6b4d42ab4bdc9443d9b87ccdcb23/FLAGb81f0e8a8 [2021-11-19 04:47:17,215 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:47:17,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/sv-benchmarks/c/pthread/stack-1.i [2021-11-19 04:47:17,246 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/data/cb35f43e1/ff6f6b4d42ab4bdc9443d9b87ccdcb23/FLAGb81f0e8a8 [2021-11-19 04:47:17,488 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/data/cb35f43e1/ff6f6b4d42ab4bdc9443d9b87ccdcb23 [2021-11-19 04:47:17,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:47:17,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:47:17,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:47:17,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:47:17,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:47:17,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:17" (1/1) ... [2021-11-19 04:47:17,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@751b274a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:17, skipping insertion in model container [2021-11-19 04:47:17,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:17" (1/1) ... [2021-11-19 04:47:17,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:47:17,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:47:18,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/sv-benchmarks/c/pthread/stack-1.i[41520,41533] [2021-11-19 04:47:18,164 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:47:18,178 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:47:18,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/sv-benchmarks/c/pthread/stack-1.i[41520,41533] [2021-11-19 04:47:18,252 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:47:18,351 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:47:18,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18 WrapperNode [2021-11-19 04:47:18,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:47:18,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:47:18,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:47:18,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:47:18,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2021-11-19 04:47:18,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2021-11-19 04:47:18,449 INFO L137 Inliner]: procedures = 277, calls = 45, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 152 [2021-11-19 04:47:18,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:47:18,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:47:18,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:47:18,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:47:18,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2021-11-19 04:47:18,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2021-11-19 04:47:18,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2021-11-19 04:47:18,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2021-11-19 04:47:18,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2021-11-19 04:47:18,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2021-11-19 04:47:18,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2021-11-19 04:47:18,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:47:18,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:47:18,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:47:18,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:47:18,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (1/1) ... [2021-11-19 04:47:18,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:47:18,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:47:18,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:47:18,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:47:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-11-19 04:47:18,615 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-11-19 04:47:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-11-19 04:47:18,615 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-11-19 04:47:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:47:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:47:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:47:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:47:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-19 04:47:18,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:47:18,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:47:18,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:47:18,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:47:18,619 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 04:47:18,743 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:47:18,745 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:47:19,090 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:47:19,101 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:47:19,101 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 04:47:19,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:19 BoogieIcfgContainer [2021-11-19 04:47:19,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:47:19,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:47:19,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:47:19,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:47:19,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:47:17" (1/3) ... [2021-11-19 04:47:19,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b6f8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:19, skipping insertion in model container [2021-11-19 04:47:19,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:18" (2/3) ... [2021-11-19 04:47:19,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b6f8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:19, skipping insertion in model container [2021-11-19 04:47:19,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:19" (3/3) ... [2021-11-19 04:47:19,113 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-1.i [2021-11-19 04:47:19,118 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 04:47:19,119 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:47:19,119 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 04:47:19,119 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 04:47:19,193 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,193 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,193 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,194 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,194 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,194 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,194 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,194 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,195 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,195 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,195 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,195 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,196 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,196 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,196 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,196 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,197 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,197 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,197 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,197 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,198 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,198 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,198 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,198 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,199 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,199 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,199 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,199 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,199 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,200 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,200 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,200 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,200 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,200 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,201 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,201 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,201 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,201 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,202 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,202 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,202 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,202 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,202 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,203 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,203 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,203 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,203 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,204 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,204 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,204 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,204 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,204 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,205 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,205 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,205 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,205 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,205 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,208 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,208 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,208 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,208 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,211 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,211 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,211 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,211 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,211 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,212 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,212 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,212 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,212 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,212 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,213 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,213 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,213 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,213 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,213 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,214 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,214 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,214 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,215 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,215 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,215 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,216 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,216 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,216 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,216 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,216 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,217 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,217 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,217 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,217 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,218 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,218 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,218 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,218 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,218 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,219 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,219 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,219 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,219 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,220 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,220 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,220 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,220 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,221 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,221 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,221 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,221 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,221 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,222 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,238 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,238 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,239 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,239 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,239 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,240 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,240 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,240 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,241 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,241 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,241 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,253 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,254 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,254 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,254 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,255 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,255 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,255 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,255 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,256 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,256 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,256 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,257 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,257 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,257 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,258 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,259 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,259 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,259 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,260 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,260 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,260 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,261 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,261 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,261 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,261 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,262 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,262 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,262 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,263 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,263 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,263 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,263 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,264 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,264 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,264 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,265 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,265 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,265 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,266 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,266 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,282 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,282 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,282 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,283 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,283 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,283 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,284 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,284 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,284 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,284 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,285 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,285 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,285 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,285 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,286 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,286 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,286 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,286 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,287 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,287 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,287 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,287 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,287 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,288 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,288 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,288 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,289 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,289 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,289 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,289 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,289 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,290 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,290 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,290 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,291 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,291 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,291 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,292 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,292 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,292 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,292 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,293 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,293 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,293 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,293 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,294 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,294 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,294 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,295 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,295 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,295 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,295 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,296 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,296 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,296 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,297 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,297 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,297 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,297 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,298 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,298 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,299 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,299 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,299 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,303 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,304 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,304 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,304 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,305 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,305 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,305 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,305 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,306 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,306 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,306 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,306 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,307 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,307 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,307 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,307 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,322 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,322 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,323 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,323 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,323 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,327 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,327 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,327 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,328 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,328 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,328 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,328 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,329 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,329 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,329 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,329 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet40#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,330 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,330 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,330 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,331 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,331 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,331 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,331 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,332 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,332 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,332 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,332 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,333 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,337 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,337 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,338 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,338 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,338 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,338 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,339 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,339 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,339 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,339 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,339 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,340 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,340 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,340 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,340 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,341 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,341 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret37#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,341 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:19,345 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-19 04:47:19,404 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:47:19,412 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:47:19,412 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-19 04:47:19,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 174 transitions, 364 flow [2021-11-19 04:47:19,513 INFO L129 PetriNetUnfolder]: 10/172 cut-off events. [2021-11-19 04:47:19,514 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-19 04:47:19,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 172 events. 10/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 419 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 126. Up to 3 conditions per place. [2021-11-19 04:47:19,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 174 transitions, 364 flow [2021-11-19 04:47:19,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 162 transitions, 333 flow [2021-11-19 04:47:19,563 INFO L129 PetriNetUnfolder]: 5/132 cut-off events. [2021-11-19 04:47:19,563 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 04:47:19,563 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:19,564 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] [2021-11-19 04:47:19,564 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:47:19,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:19,570 INFO L85 PathProgramCache]: Analyzing trace with hash 159047084, now seen corresponding path program 1 times [2021-11-19 04:47:19,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:19,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339731104] [2021-11-19 04:47:19,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:19,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:19,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:19,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339731104] [2021-11-19 04:47:19,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339731104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:47:19,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:47:19,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:47:19,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014565687] [2021-11-19 04:47:19,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:47:19,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:47:19,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:20,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:47:20,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:47:20,051 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 174 [2021-11-19 04:47:20,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 162 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:20,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 174 [2021-11-19 04:47:20,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:20,261 INFO L129 PetriNetUnfolder]: 88/701 cut-off events. [2021-11-19 04:47:20,261 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-11-19 04:47:20,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 701 events. 88/701 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3119 event pairs, 32 based on Foata normal form. 69/704 useless extension candidates. Maximal degree in co-relation 747. Up to 111 conditions per place. [2021-11-19 04:47:20,271 INFO L132 encePairwiseOnDemand]: 164/174 looper letters, 20 selfloop transitions, 3 changer transitions 0/160 dead transitions. [2021-11-19 04:47:20,271 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 160 transitions, 381 flow [2021-11-19 04:47:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:47:20,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:47:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2021-11-19 04:47:20,288 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9291187739463601 [2021-11-19 04:47:20,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 485 transitions. [2021-11-19 04:47:20,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 485 transitions. [2021-11-19 04:47:20,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:20,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 485 transitions. [2021-11-19 04:47:20,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,311 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,313 INFO L186 Difference]: Start difference. First operand has 159 places, 162 transitions, 333 flow. Second operand 3 states and 485 transitions. [2021-11-19 04:47:20,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 160 transitions, 381 flow [2021-11-19 04:47:20,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 160 transitions, 373 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-19 04:47:20,324 INFO L242 Difference]: Finished difference. Result has 155 places, 154 transitions, 327 flow [2021-11-19 04:47:20,327 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=155, PETRI_TRANSITIONS=154} [2021-11-19 04:47:20,331 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, -4 predicate places. [2021-11-19 04:47:20,331 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 154 transitions, 327 flow [2021-11-19 04:47:20,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,332 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:20,332 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] [2021-11-19 04:47:20,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:47:20,333 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:47:20,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:20,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1019912990, now seen corresponding path program 1 times [2021-11-19 04:47:20,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:20,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199565052] [2021-11-19 04:47:20,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:20,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:20,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:20,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199565052] [2021-11-19 04:47:20,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199565052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:47:20,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:47:20,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:47:20,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097856984] [2021-11-19 04:47:20,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:47:20,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:47:20,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:20,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:47:20,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:47:20,556 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 174 [2021-11-19 04:47:20,557 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 154 transitions, 327 flow. Second operand has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,558 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:20,558 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 174 [2021-11-19 04:47:20,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:20,791 INFO L129 PetriNetUnfolder]: 34/592 cut-off events. [2021-11-19 04:47:20,791 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-11-19 04:47:20,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 592 events. 34/592 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2054 event pairs, 11 based on Foata normal form. 0/555 useless extension candidates. Maximal degree in co-relation 411. Up to 45 conditions per place. [2021-11-19 04:47:20,800 INFO L132 encePairwiseOnDemand]: 169/174 looper letters, 16 selfloop transitions, 4 changer transitions 0/162 dead transitions. [2021-11-19 04:47:20,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 162 transitions, 388 flow [2021-11-19 04:47:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:47:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-11-19 04:47:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 637 transitions. [2021-11-19 04:47:20,807 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9152298850574713 [2021-11-19 04:47:20,807 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 637 transitions. [2021-11-19 04:47:20,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 637 transitions. [2021-11-19 04:47:20,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:20,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 637 transitions. [2021-11-19 04:47:20,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 159.25) internal successors, (637), 4 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,817 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,818 INFO L186 Difference]: Start difference. First operand has 155 places, 154 transitions, 327 flow. Second operand 4 states and 637 transitions. [2021-11-19 04:47:20,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 162 transitions, 388 flow [2021-11-19 04:47:20,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 162 transitions, 385 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 04:47:20,832 INFO L242 Difference]: Finished difference. Result has 159 places, 157 transitions, 352 flow [2021-11-19 04:47:20,833 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=352, PETRI_PLACES=159, PETRI_TRANSITIONS=157} [2021-11-19 04:47:20,834 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 0 predicate places. [2021-11-19 04:47:20,834 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 157 transitions, 352 flow [2021-11-19 04:47:20,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,835 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:20,836 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] [2021-11-19 04:47:20,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:47:20,837 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:47:20,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:20,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1119178504, now seen corresponding path program 1 times [2021-11-19 04:47:20,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:20,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792743734] [2021-11-19 04:47:20,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:20,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:20,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:20,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792743734] [2021-11-19 04:47:20,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792743734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:47:20,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:47:20,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:47:20,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207431415] [2021-11-19 04:47:20,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:47:20,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:47:20,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:20,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:47:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:47:20,995 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 174 [2021-11-19 04:47:20,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 157 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:20,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:20,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 174 [2021-11-19 04:47:20,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:21,363 INFO L129 PetriNetUnfolder]: 127/1269 cut-off events. [2021-11-19 04:47:21,364 INFO L130 PetriNetUnfolder]: For 90/100 co-relation queries the response was YES. [2021-11-19 04:47:21,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1269 events. 127/1269 cut-off events. For 90/100 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6918 event pairs, 33 based on Foata normal form. 12/1207 useless extension candidates. Maximal degree in co-relation 1334. Up to 135 conditions per place. [2021-11-19 04:47:21,379 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 25 selfloop transitions, 4 changer transitions 0/169 dead transitions. [2021-11-19 04:47:21,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 169 transitions, 443 flow [2021-11-19 04:47:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:47:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:47:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-11-19 04:47:21,385 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9195402298850575 [2021-11-19 04:47:21,385 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-11-19 04:47:21,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-11-19 04:47:21,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:21,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-11-19 04:47:21,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:21,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:21,390 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:21,390 INFO L186 Difference]: Start difference. First operand has 159 places, 157 transitions, 352 flow. Second operand 3 states and 480 transitions. [2021-11-19 04:47:21,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 169 transitions, 443 flow [2021-11-19 04:47:21,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 169 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 04:47:21,402 INFO L242 Difference]: Finished difference. Result has 162 places, 161 transitions, 392 flow [2021-11-19 04:47:21,403 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=162, PETRI_TRANSITIONS=161} [2021-11-19 04:47:21,405 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 3 predicate places. [2021-11-19 04:47:21,405 INFO L470 AbstractCegarLoop]: Abstraction has has 162 places, 161 transitions, 392 flow [2021-11-19 04:47:21,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:21,406 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:21,407 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:47:21,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 04:47:21,407 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:47:21,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:21,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1559571970, now seen corresponding path program 1 times [2021-11-19 04:47:21,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:21,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074437017] [2021-11-19 04:47:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:21,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:21,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:21,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074437017] [2021-11-19 04:47:21,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074437017] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:47:21,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332994332] [2021-11-19 04:47:21,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:21,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:47:21,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:47:21,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:47:21,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 04:47:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:21,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:47:21,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:47:22,094 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:22,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:47:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:22,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332994332] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:47:22,399 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:47:22,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-19 04:47:22,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531077848] [2021-11-19 04:47:22,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:47:22,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:47:22,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:22,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:47:22,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:47:22,408 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 174 [2021-11-19 04:47:22,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 161 transitions, 392 flow. Second operand has 10 states, 10 states have (on average 150.5) internal successors, (1505), 10 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:22,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:22,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 174 [2021-11-19 04:47:22,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:23,061 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([468] L1009-->L1011: Formula: (< 0 v_~top~0_7) InVars {~top~0=v_~top~0_7} OutVars{~top~0=v_~top~0_7} AuxVars[] AssignedVars[][182], [Black: 188#true, 116#L1011true, 34#L946-2true, Black: 176#(= ~top~0 0), 194#true, 32#L1023-4true, 190#(<= 1 ~top~0), Black: 181#(= |t1Thread1of1ForFork0_push_#res#1| 0), Black: 184#(and (= |t1Thread1of1ForFork0_push_#res#1| 0) (= |t1Thread1of1ForFork0_#t~ret42#1| 0)), t2Thread1of1ForFork1InUse]) [2021-11-19 04:47:23,061 INFO L384 tUnfolder$Statistics]: this new event has 187 ancestors and is cut-off event [2021-11-19 04:47:23,061 INFO L387 tUnfolder$Statistics]: existing Event has 166 ancestors and is cut-off event [2021-11-19 04:47:23,062 INFO L387 tUnfolder$Statistics]: existing Event has 167 ancestors and is cut-off event [2021-11-19 04:47:23,062 INFO L387 tUnfolder$Statistics]: existing Event has 159 ancestors and is cut-off event [2021-11-19 04:47:23,062 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([469] L1009-->L1009-1: Formula: (not (< 0 v_~top~0_13)) InVars {~top~0=v_~top~0_13} OutVars{~top~0=v_~top~0_13} AuxVars[] AssignedVars[][183], [Black: 190#(<= 1 ~top~0), 34#L946-2true, Black: 176#(= ~top~0 0), 85#L1009-1true, 32#L1023-4true, Black: 181#(= |t1Thread1of1ForFork0_push_#res#1| 0), Black: 184#(and (= |t1Thread1of1ForFork0_push_#res#1| 0) (= |t1Thread1of1ForFork0_#t~ret42#1| 0)), t2Thread1of1ForFork1InUse, 188#true, 232#(<= ~top~0 0)]) [2021-11-19 04:47:23,062 INFO L384 tUnfolder$Statistics]: this new event has 187 ancestors and is cut-off event [2021-11-19 04:47:23,062 INFO L387 tUnfolder$Statistics]: existing Event has 166 ancestors and is cut-off event [2021-11-19 04:47:23,063 INFO L387 tUnfolder$Statistics]: existing Event has 167 ancestors and is cut-off event [2021-11-19 04:47:23,063 INFO L387 tUnfolder$Statistics]: existing Event has 159 ancestors and is cut-off event [2021-11-19 04:47:23,174 INFO L129 PetriNetUnfolder]: 388/2721 cut-off events. [2021-11-19 04:47:23,175 INFO L130 PetriNetUnfolder]: For 980/1066 co-relation queries the response was YES. [2021-11-19 04:47:23,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4165 conditions, 2721 events. 388/2721 cut-off events. For 980/1066 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 19075 event pairs, 64 based on Foata normal form. 38/2611 useless extension candidates. Maximal degree in co-relation 3627. Up to 300 conditions per place. [2021-11-19 04:47:23,203 INFO L132 encePairwiseOnDemand]: 165/174 looper letters, 86 selfloop transitions, 46 changer transitions 1/271 dead transitions. [2021-11-19 04:47:23,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 271 transitions, 1074 flow [2021-11-19 04:47:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 04:47:23,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-19 04:47:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2795 transitions. [2021-11-19 04:47:23,213 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8924010217113666 [2021-11-19 04:47:23,213 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2795 transitions. [2021-11-19 04:47:23,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2795 transitions. [2021-11-19 04:47:23,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:23,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2795 transitions. [2021-11-19 04:47:23,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 155.27777777777777) internal successors, (2795), 18 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:23,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 174.0) internal successors, (3306), 19 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:23,236 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 174.0) internal successors, (3306), 19 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:23,236 INFO L186 Difference]: Start difference. First operand has 162 places, 161 transitions, 392 flow. Second operand 18 states and 2795 transitions. [2021-11-19 04:47:23,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 271 transitions, 1074 flow [2021-11-19 04:47:23,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 271 transitions, 1012 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-11-19 04:47:23,248 INFO L242 Difference]: Finished difference. Result has 183 places, 216 transitions, 763 flow [2021-11-19 04:47:23,248 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=763, PETRI_PLACES=183, PETRI_TRANSITIONS=216} [2021-11-19 04:47:23,249 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 24 predicate places. [2021-11-19 04:47:23,250 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 216 transitions, 763 flow [2021-11-19 04:47:23,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 150.5) internal successors, (1505), 10 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:23,251 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:23,251 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:47:23,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:47:23,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:47:23,474 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:47:23,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:23,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1400149819, now seen corresponding path program 1 times [2021-11-19 04:47:23,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:23,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134572221] [2021-11-19 04:47:23,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:23,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:23,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:23,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134572221] [2021-11-19 04:47:23,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134572221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:47:23,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:47:23,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:47:23,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247726358] [2021-11-19 04:47:23,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:47:23,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:47:23,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:23,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:47:23,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:47:23,538 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 174 [2021-11-19 04:47:23,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 216 transitions, 763 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:23,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:23,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 174 [2021-11-19 04:47:23,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:23,772 INFO L129 PetriNetUnfolder]: 54/1109 cut-off events. [2021-11-19 04:47:23,772 INFO L130 PetriNetUnfolder]: For 239/239 co-relation queries the response was YES. [2021-11-19 04:47:23,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1518 conditions, 1109 events. 54/1109 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4857 event pairs, 9 based on Foata normal form. 18/1084 useless extension candidates. Maximal degree in co-relation 1132. Up to 51 conditions per place. [2021-11-19 04:47:23,782 INFO L132 encePairwiseOnDemand]: 170/174 looper letters, 12 selfloop transitions, 4 changer transitions 0/175 dead transitions. [2021-11-19 04:47:23,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 175 transitions, 540 flow [2021-11-19 04:47:23,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:47:23,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:47:23,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2021-11-19 04:47:23,784 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2021-11-19 04:47:23,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2021-11-19 04:47:23,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2021-11-19 04:47:23,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:23,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2021-11-19 04:47:23,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:23,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:23,789 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:23,789 INFO L186 Difference]: Start difference. First operand has 183 places, 216 transitions, 763 flow. Second operand 3 states and 474 transitions. [2021-11-19 04:47:23,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 175 transitions, 540 flow [2021-11-19 04:47:23,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 175 transitions, 518 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-11-19 04:47:23,798 INFO L242 Difference]: Finished difference. Result has 173 places, 173 transitions, 487 flow [2021-11-19 04:47:23,799 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=173, PETRI_TRANSITIONS=173} [2021-11-19 04:47:23,802 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 14 predicate places. [2021-11-19 04:47:23,802 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 173 transitions, 487 flow [2021-11-19 04:47:23,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:23,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:23,803 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:47:23,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 04:47:23,804 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:47:23,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:23,804 INFO L85 PathProgramCache]: Analyzing trace with hash -776860575, now seen corresponding path program 1 times [2021-11-19 04:47:23,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:23,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884432425] [2021-11-19 04:47:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:23,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:24,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:24,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:24,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884432425] [2021-11-19 04:47:24,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884432425] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:47:24,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:47:24,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-11-19 04:47:24,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139152446] [2021-11-19 04:47:24,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:47:24,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-19 04:47:24,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:24,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-19 04:47:24,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-11-19 04:47:24,732 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 174 [2021-11-19 04:47:24,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 173 transitions, 487 flow. Second operand has 24 states, 24 states have (on average 97.54166666666667) internal successors, (2341), 24 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:24,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:24,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 174 [2021-11-19 04:47:24,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:28,828 INFO L129 PetriNetUnfolder]: 1122/4496 cut-off events. [2021-11-19 04:47:28,828 INFO L130 PetriNetUnfolder]: For 906/906 co-relation queries the response was YES. [2021-11-19 04:47:28,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8478 conditions, 4496 events. 1122/4496 cut-off events. For 906/906 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 32107 event pairs, 173 based on Foata normal form. 20/4366 useless extension candidates. Maximal degree in co-relation 5126. Up to 1458 conditions per place. [2021-11-19 04:47:28,872 INFO L132 encePairwiseOnDemand]: 137/174 looper letters, 249 selfloop transitions, 59 changer transitions 33/425 dead transitions. [2021-11-19 04:47:28,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 425 transitions, 1855 flow [2021-11-19 04:47:28,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-19 04:47:28,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-11-19 04:47:28,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 4491 transitions. [2021-11-19 04:47:28,891 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5865987460815048 [2021-11-19 04:47:28,891 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 4491 transitions. [2021-11-19 04:47:28,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 4491 transitions. [2021-11-19 04:47:28,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:28,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 4491 transitions. [2021-11-19 04:47:28,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 102.06818181818181) internal successors, (4491), 44 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:28,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 174.0) internal successors, (7830), 45 states have internal predecessors, (7830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:28,933 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 174.0) internal successors, (7830), 45 states have internal predecessors, (7830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:28,933 INFO L186 Difference]: Start difference. First operand has 173 places, 173 transitions, 487 flow. Second operand 44 states and 4491 transitions. [2021-11-19 04:47:28,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 425 transitions, 1855 flow [2021-11-19 04:47:28,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 425 transitions, 1851 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 04:47:28,948 INFO L242 Difference]: Finished difference. Result has 254 places, 228 transitions, 970 flow [2021-11-19 04:47:28,949 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=970, PETRI_PLACES=254, PETRI_TRANSITIONS=228} [2021-11-19 04:47:28,950 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 95 predicate places. [2021-11-19 04:47:28,950 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 228 transitions, 970 flow [2021-11-19 04:47:28,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 97.54166666666667) internal successors, (2341), 24 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:28,951 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:28,952 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:47:28,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 04:47:28,952 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:47:28,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:28,953 INFO L85 PathProgramCache]: Analyzing trace with hash 159145353, now seen corresponding path program 2 times [2021-11-19 04:47:28,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:28,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796135418] [2021-11-19 04:47:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:28,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:30,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:30,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:30,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796135418] [2021-11-19 04:47:30,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796135418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:47:30,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:47:30,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-19 04:47:30,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548935918] [2021-11-19 04:47:30,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:47:30,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-19 04:47:30,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:30,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-19 04:47:30,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2021-11-19 04:47:30,110 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2021-11-19 04:47:30,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 228 transitions, 970 flow. Second operand has 29 states, 29 states have (on average 77.58620689655173) internal successors, (2250), 29 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:30,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:30,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2021-11-19 04:47:30,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:36,575 INFO L129 PetriNetUnfolder]: 3270/11126 cut-off events. [2021-11-19 04:47:36,575 INFO L130 PetriNetUnfolder]: For 7218/7224 co-relation queries the response was YES. [2021-11-19 04:47:36,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25542 conditions, 11126 events. 3270/11126 cut-off events. For 7218/7224 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 84367 event pairs, 718 based on Foata normal form. 19/10917 useless extension candidates. Maximal degree in co-relation 16967. Up to 3915 conditions per place. [2021-11-19 04:47:36,714 INFO L132 encePairwiseOnDemand]: 136/174 looper letters, 348 selfloop transitions, 61 changer transitions 30/507 dead transitions. [2021-11-19 04:47:36,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 507 transitions, 3012 flow [2021-11-19 04:47:36,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-19 04:47:36,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-11-19 04:47:36,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2962 transitions. [2021-11-19 04:47:36,728 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4863711001642036 [2021-11-19 04:47:36,728 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 2962 transitions. [2021-11-19 04:47:36,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 2962 transitions. [2021-11-19 04:47:36,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:36,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 2962 transitions. [2021-11-19 04:47:36,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 84.62857142857143) internal successors, (2962), 35 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:36,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 174.0) internal successors, (6264), 36 states have internal predecessors, (6264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:36,760 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 174.0) internal successors, (6264), 36 states have internal predecessors, (6264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:36,760 INFO L186 Difference]: Start difference. First operand has 254 places, 228 transitions, 970 flow. Second operand 35 states and 2962 transitions. [2021-11-19 04:47:36,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 507 transitions, 3012 flow [2021-11-19 04:47:36,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 507 transitions, 3000 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-11-19 04:47:36,813 INFO L242 Difference]: Finished difference. Result has 302 places, 263 transitions, 1445 flow [2021-11-19 04:47:36,814 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=1445, PETRI_PLACES=302, PETRI_TRANSITIONS=263} [2021-11-19 04:47:36,814 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 143 predicate places. [2021-11-19 04:47:36,815 INFO L470 AbstractCegarLoop]: Abstraction has has 302 places, 263 transitions, 1445 flow [2021-11-19 04:47:36,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 77.58620689655173) internal successors, (2250), 29 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:36,816 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:36,816 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:47:36,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 04:47:36,817 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:47:36,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:36,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1843782287, now seen corresponding path program 3 times [2021-11-19 04:47:36,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:36,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244476959] [2021-11-19 04:47:36,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:36,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:37,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:37,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244476959] [2021-11-19 04:47:37,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244476959] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:47:37,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:47:37,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-19 04:47:37,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000778002] [2021-11-19 04:47:37,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:47:37,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-19 04:47:37,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:37,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-19 04:47:37,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2021-11-19 04:47:37,901 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2021-11-19 04:47:37,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 263 transitions, 1445 flow. Second operand has 29 states, 29 states have (on average 77.58620689655173) internal successors, (2250), 29 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:37,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:37,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2021-11-19 04:47:37,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:45,224 INFO L129 PetriNetUnfolder]: 4180/14184 cut-off events. [2021-11-19 04:47:45,224 INFO L130 PetriNetUnfolder]: For 12927/12939 co-relation queries the response was YES. [2021-11-19 04:47:45,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34391 conditions, 14184 events. 4180/14184 cut-off events. For 12927/12939 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 117485 event pairs, 919 based on Foata normal form. 18/13911 useless extension candidates. Maximal degree in co-relation 24384. Up to 3946 conditions per place. [2021-11-19 04:47:45,539 INFO L132 encePairwiseOnDemand]: 136/174 looper letters, 408 selfloop transitions, 138 changer transitions 55/669 dead transitions. [2021-11-19 04:47:45,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 669 transitions, 4529 flow [2021-11-19 04:47:45,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-19 04:47:45,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-11-19 04:47:45,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 3893 transitions. [2021-11-19 04:47:45,549 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48638180909545226 [2021-11-19 04:47:45,550 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 3893 transitions. [2021-11-19 04:47:45,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 3893 transitions. [2021-11-19 04:47:45,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:45,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 3893 transitions. [2021-11-19 04:47:45,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 84.6304347826087) internal successors, (3893), 46 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:45,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 174.0) internal successors, (8178), 47 states have internal predecessors, (8178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:45,597 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 174.0) internal successors, (8178), 47 states have internal predecessors, (8178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:45,597 INFO L186 Difference]: Start difference. First operand has 302 places, 263 transitions, 1445 flow. Second operand 46 states and 3893 transitions. [2021-11-19 04:47:45,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 669 transitions, 4529 flow [2021-11-19 04:47:45,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 669 transitions, 4463 flow, removed 12 selfloop flow, removed 14 redundant places. [2021-11-19 04:47:45,697 INFO L242 Difference]: Finished difference. Result has 352 places, 347 transitions, 2525 flow [2021-11-19 04:47:45,698 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=1393, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=2525, PETRI_PLACES=352, PETRI_TRANSITIONS=347} [2021-11-19 04:47:45,701 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 193 predicate places. [2021-11-19 04:47:45,701 INFO L470 AbstractCegarLoop]: Abstraction has has 352 places, 347 transitions, 2525 flow [2021-11-19 04:47:45,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 77.58620689655173) internal successors, (2250), 29 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:45,702 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:45,702 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:47:45,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-19 04:47:45,703 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:47:45,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:45,703 INFO L85 PathProgramCache]: Analyzing trace with hash 611915571, now seen corresponding path program 4 times [2021-11-19 04:47:45,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:45,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348974739] [2021-11-19 04:47:45,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:45,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:46,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:46,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348974739] [2021-11-19 04:47:46,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348974739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:47:46,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:47:46,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-19 04:47:46,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950306412] [2021-11-19 04:47:46,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:47:46,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-19 04:47:46,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:46,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-19 04:47:46,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2021-11-19 04:47:46,759 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2021-11-19 04:47:46,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 347 transitions, 2525 flow. Second operand has 30 states, 30 states have (on average 77.5) internal successors, (2325), 30 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:46,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:46,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2021-11-19 04:47:46,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:56,517 INFO L129 PetriNetUnfolder]: 5062/17221 cut-off events. [2021-11-19 04:47:56,517 INFO L130 PetriNetUnfolder]: For 167762/167786 co-relation queries the response was YES. [2021-11-19 04:47:56,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63498 conditions, 17221 events. 5062/17221 cut-off events. For 167762/167786 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 149588 event pairs, 672 based on Foata normal form. 58/16926 useless extension candidates. Maximal degree in co-relation 58558. Up to 3640 conditions per place. [2021-11-19 04:47:56,995 INFO L132 encePairwiseOnDemand]: 138/174 looper letters, 365 selfloop transitions, 190 changer transitions 35/658 dead transitions. [2021-11-19 04:47:56,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 658 transitions, 6237 flow [2021-11-19 04:47:56,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-19 04:47:56,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-11-19 04:47:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 3768 transitions. [2021-11-19 04:47:57,003 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4812260536398467 [2021-11-19 04:47:57,003 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 3768 transitions. [2021-11-19 04:47:57,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 3768 transitions. [2021-11-19 04:47:57,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:57,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 3768 transitions. [2021-11-19 04:47:57,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 83.73333333333333) internal successors, (3768), 45 states have internal predecessors, (3768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:57,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 174.0) internal successors, (8004), 46 states have internal predecessors, (8004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:57,028 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 174.0) internal successors, (8004), 46 states have internal predecessors, (8004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:57,028 INFO L186 Difference]: Start difference. First operand has 352 places, 347 transitions, 2525 flow. Second operand 45 states and 3768 transitions. [2021-11-19 04:47:57,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 658 transitions, 6237 flow [2021-11-19 04:47:57,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 658 transitions, 6156 flow, removed 21 selfloop flow, removed 16 redundant places. [2021-11-19 04:47:57,288 INFO L242 Difference]: Finished difference. Result has 407 places, 385 transitions, 3561 flow [2021-11-19 04:47:57,289 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=2454, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=3561, PETRI_PLACES=407, PETRI_TRANSITIONS=385} [2021-11-19 04:47:57,290 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 248 predicate places. [2021-11-19 04:47:57,291 INFO L470 AbstractCegarLoop]: Abstraction has has 407 places, 385 transitions, 3561 flow [2021-11-19 04:47:57,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 77.5) internal successors, (2325), 30 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:47:57,292 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:57,292 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:47:57,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-19 04:47:57,294 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:47:57,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:57,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1048776744, now seen corresponding path program 1 times [2021-11-19 04:47:57,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:57,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487555445] [2021-11-19 04:47:57,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:57,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:58,144 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:58,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:58,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487555445] [2021-11-19 04:47:58,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487555445] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:47:58,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086598531] [2021-11-19 04:47:58,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:58,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:47:58,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:47:58,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:47:58,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 04:47:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:58,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-19 04:47:58,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:47:59,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-19 04:48:00,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-19 04:48:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:00,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:48:01,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2021-11-19 04:48:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 04:48:01,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086598531] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:01,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:48:01,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [26, 26] total 50 [2021-11-19 04:48:01,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628082408] [2021-11-19 04:48:01,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:48:01,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-19 04:48:01,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:01,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-19 04:48:01,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=2305, Unknown=0, NotChecked=0, Total=2450 [2021-11-19 04:48:01,767 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 174 [2021-11-19 04:48:01,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 385 transitions, 3561 flow. Second operand has 22 states, 22 states have (on average 98.63636363636364) internal successors, (2170), 22 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:01,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:01,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 174 [2021-11-19 04:48:01,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:13,770 INFO L129 PetriNetUnfolder]: 4691/18605 cut-off events. [2021-11-19 04:48:13,770 INFO L130 PetriNetUnfolder]: For 60492/60506 co-relation queries the response was YES. [2021-11-19 04:48:14,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54985 conditions, 18605 events. 4691/18605 cut-off events. For 60492/60506 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 171073 event pairs, 701 based on Foata normal form. 14/18149 useless extension candidates. Maximal degree in co-relation 52842. Up to 2814 conditions per place. [2021-11-19 04:48:14,086 INFO L132 encePairwiseOnDemand]: 141/174 looper letters, 328 selfloop transitions, 294 changer transitions 1/723 dead transitions. [2021-11-19 04:48:14,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 723 transitions, 7020 flow [2021-11-19 04:48:14,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-19 04:48:14,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-11-19 04:48:14,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 6504 transitions. [2021-11-19 04:48:14,300 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5750663129973475 [2021-11-19 04:48:14,300 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 6504 transitions. [2021-11-19 04:48:14,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 6504 transitions. [2021-11-19 04:48:14,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:14,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 6504 transitions. [2021-11-19 04:48:14,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 100.06153846153846) internal successors, (6504), 65 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:14,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 174.0) internal successors, (11484), 66 states have internal predecessors, (11484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:14,366 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 174.0) internal successors, (11484), 66 states have internal predecessors, (11484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:14,367 INFO L186 Difference]: Start difference. First operand has 407 places, 385 transitions, 3561 flow. Second operand 65 states and 6504 transitions. [2021-11-19 04:48:14,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 723 transitions, 7020 flow [2021-11-19 04:48:14,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 723 transitions, 6640 flow, removed 158 selfloop flow, removed 18 redundant places. [2021-11-19 04:48:14,681 INFO L242 Difference]: Finished difference. Result has 470 places, 544 transitions, 5643 flow [2021-11-19 04:48:14,682 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=3360, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=65, PETRI_FLOW=5643, PETRI_PLACES=470, PETRI_TRANSITIONS=544} [2021-11-19 04:48:14,683 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 311 predicate places. [2021-11-19 04:48:14,683 INFO L470 AbstractCegarLoop]: Abstraction has has 470 places, 544 transitions, 5643 flow [2021-11-19 04:48:14,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 98.63636363636364) internal successors, (2170), 22 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:14,684 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:14,684 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:14,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:14,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-19 04:48:14,885 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:48:14,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:14,886 INFO L85 PathProgramCache]: Analyzing trace with hash 124923032, now seen corresponding path program 2 times [2021-11-19 04:48:14,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:14,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606063136] [2021-11-19 04:48:14,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:14,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:16,122 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:16,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:16,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606063136] [2021-11-19 04:48:16,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606063136] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:16,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852236386] [2021-11-19 04:48:16,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:48:16,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:16,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:16,124 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:16,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 04:48:16,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 04:48:16,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:48:16,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-19 04:48:16,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:16,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 04:48:16,338 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-19 04:48:16,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-19 04:48:16,598 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-19 04:48:16,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 37 [2021-11-19 04:48:16,716 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-11-19 04:48:16,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 37 [2021-11-19 04:48:17,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2021-11-19 04:48:18,038 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-19 04:48:18,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 42 [2021-11-19 04:48:19,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2021-11-19 04:48:19,286 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 04:48:19,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:48:29,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 110 [2021-11-19 04:48:30,632 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 15 refuted. 2 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 04:48:30,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852236386] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:48:30,633 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:48:30,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 27, 27] total 80 [2021-11-19 04:48:30,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959807314] [2021-11-19 04:48:30,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:48:30,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2021-11-19 04:48:30,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:30,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-11-19 04:48:30,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=6002, Unknown=8, NotChecked=0, Total=6320 [2021-11-19 04:48:30,644 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2021-11-19 04:48:30,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 544 transitions, 5643 flow. Second operand has 80 states, 80 states have (on average 78.05) internal successors, (6244), 80 states have internal predecessors, (6244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:30,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:30,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2021-11-19 04:48:30,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:49:18,716 INFO L129 PetriNetUnfolder]: 8988/30427 cut-off events. [2021-11-19 04:49:18,716 INFO L130 PetriNetUnfolder]: For 364309/364341 co-relation queries the response was YES. [2021-11-19 04:49:19,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128097 conditions, 30427 events. 8988/30427 cut-off events. For 364309/364341 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 296354 event pairs, 664 based on Foata normal form. 58/29857 useless extension candidates. Maximal degree in co-relation 107973. Up to 3375 conditions per place. [2021-11-19 04:49:19,732 INFO L132 encePairwiseOnDemand]: 132/174 looper letters, 769 selfloop transitions, 611 changer transitions 24/1472 dead transitions. [2021-11-19 04:49:19,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 1472 transitions, 17589 flow [2021-11-19 04:49:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2021-11-19 04:49:19,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2021-11-19 04:49:19,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 12851 transitions. [2021-11-19 04:49:19,764 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4645051687992482 [2021-11-19 04:49:19,764 INFO L72 ComplementDD]: Start complementDD. Operand 159 states and 12851 transitions. [2021-11-19 04:49:19,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 12851 transitions. [2021-11-19 04:49:19,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:49:19,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 159 states and 12851 transitions. [2021-11-19 04:49:19,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 160 states, 159 states have (on average 80.82389937106919) internal successors, (12851), 159 states have internal predecessors, (12851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:49:19,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 160 states, 160 states have (on average 174.0) internal successors, (27840), 160 states have internal predecessors, (27840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:49:19,839 INFO L81 ComplementDD]: Finished complementDD. Result has 160 states, 160 states have (on average 174.0) internal successors, (27840), 160 states have internal predecessors, (27840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:49:19,839 INFO L186 Difference]: Start difference. First operand has 470 places, 544 transitions, 5643 flow. Second operand 159 states and 12851 transitions. [2021-11-19 04:49:19,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 1472 transitions, 17589 flow [2021-11-19 04:49:21,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 1472 transitions, 16471 flow, removed 528 selfloop flow, removed 9 redundant places. [2021-11-19 04:49:21,323 INFO L242 Difference]: Finished difference. Result has 634 places, 818 transitions, 8718 flow [2021-11-19 04:49:21,324 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=5155, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=355, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=159, PETRI_FLOW=8718, PETRI_PLACES=634, PETRI_TRANSITIONS=818} [2021-11-19 04:49:21,325 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 475 predicate places. [2021-11-19 04:49:21,325 INFO L470 AbstractCegarLoop]: Abstraction has has 634 places, 818 transitions, 8718 flow [2021-11-19 04:49:21,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 78.05) internal successors, (6244), 80 states have internal predecessors, (6244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:49:21,327 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:49:21,328 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:49:21,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-19 04:49:21,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-19 04:49:21,542 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:49:21,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:49:21,543 INFO L85 PathProgramCache]: Analyzing trace with hash -194388500, now seen corresponding path program 2 times [2021-11-19 04:49:21,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:49:21,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031633772] [2021-11-19 04:49:21,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:49:21,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:49:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:49:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 12 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:49:21,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:49:21,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031633772] [2021-11-19 04:49:21,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031633772] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:49:21,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863588151] [2021-11-19 04:49:21,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:49:21,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:49:21,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:49:21,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:49:21,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 04:49:21,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 04:49:21,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:49:21,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:49:21,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:49:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 12 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:49:22,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:49:22,742 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 12 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:49:22,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863588151] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:49:22,742 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:49:22,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2021-11-19 04:49:22,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730799582] [2021-11-19 04:49:22,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:49:22,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 04:49:22,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:49:22,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 04:49:22,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 04:49:22,747 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 174 [2021-11-19 04:49:22,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 634 places, 818 transitions, 8718 flow. Second operand has 13 states, 13 states have (on average 150.84615384615384) internal successors, (1961), 13 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:49:22,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:49:22,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 174 [2021-11-19 04:49:22,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:49:29,477 INFO L129 PetriNetUnfolder]: 1235/15388 cut-off events. [2021-11-19 04:49:29,477 INFO L130 PetriNetUnfolder]: For 74680/74715 co-relation queries the response was YES. [2021-11-19 04:49:29,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45570 conditions, 15388 events. 1235/15388 cut-off events. For 74680/74715 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 143331 event pairs, 401 based on Foata normal form. 69/14932 useless extension candidates. Maximal degree in co-relation 42206. Up to 925 conditions per place. [2021-11-19 04:49:29,790 INFO L132 encePairwiseOnDemand]: 167/174 looper letters, 214 selfloop transitions, 140 changer transitions 1/946 dead transitions. [2021-11-19 04:49:29,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 946 transitions, 10550 flow [2021-11-19 04:49:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 04:49:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-19 04:49:29,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2759 transitions. [2021-11-19 04:49:29,794 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8809067688378033 [2021-11-19 04:49:29,794 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2759 transitions. [2021-11-19 04:49:29,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2759 transitions. [2021-11-19 04:49:29,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:49:29,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2759 transitions. [2021-11-19 04:49:29,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 153.27777777777777) internal successors, (2759), 18 states have internal predecessors, (2759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:49:29,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 174.0) internal successors, (3306), 19 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:49:29,803 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 174.0) internal successors, (3306), 19 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:49:29,803 INFO L186 Difference]: Start difference. First operand has 634 places, 818 transitions, 8718 flow. Second operand 18 states and 2759 transitions. [2021-11-19 04:49:29,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 650 places, 946 transitions, 10550 flow [2021-11-19 04:49:30,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 946 transitions, 9300 flow, removed 425 selfloop flow, removed 27 redundant places. [2021-11-19 04:49:30,379 INFO L242 Difference]: Finished difference. Result has 625 places, 857 transitions, 8305 flow [2021-11-19 04:49:30,380 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=7598, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=8305, PETRI_PLACES=625, PETRI_TRANSITIONS=857} [2021-11-19 04:49:30,380 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 466 predicate places. [2021-11-19 04:49:30,380 INFO L470 AbstractCegarLoop]: Abstraction has has 625 places, 857 transitions, 8305 flow [2021-11-19 04:49:30,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 150.84615384615384) internal successors, (1961), 13 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:49:30,381 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:49:30,382 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:49:30,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:49:30,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:49:30,582 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:49:30,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:49:30,583 INFO L85 PathProgramCache]: Analyzing trace with hash 74045759, now seen corresponding path program 1 times [2021-11-19 04:49:30,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:49:30,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462790588] [2021-11-19 04:49:30,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:49:30,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:49:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:49:31,645 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:49:31,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:49:31,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462790588] [2021-11-19 04:49:31,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462790588] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:49:31,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657924327] [2021-11-19 04:49:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:49:31,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:49:31,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:49:31,647 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:49:31,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14131b19-eda4-4120-88b9-ca9ca21977b1/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 04:49:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:49:31,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-19 04:49:31,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:49:32,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2021-11-19 04:49:33,543 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-11-19 04:49:33,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 49 [2021-11-19 04:49:34,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2021-11-19 04:49:34,971 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:49:34,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:49:37,953 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_push_#t~ret35#1_40| Int)) (or (< |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| |c_t1Thread1of1ForFork0_get_top_#res#1|) (forall ((|t1Thread1of1ForFork0_push_~x#1| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| 4)) |t1Thread1of1ForFork0_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296) 4294967294))))) is different from false [2021-11-19 04:50:37,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2021-11-19 04:50:38,301 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-19 04:50:38,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657924327] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:50:38,301 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:50:38,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29, 29] total 84 [2021-11-19 04:50:38,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138484211] [2021-11-19 04:50:38,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:50:38,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2021-11-19 04:50:38,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:50:38,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-11-19 04:50:38,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=6491, Unknown=18, NotChecked=162, Total=6972 [2021-11-19 04:50:38,317 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 174 [2021-11-19 04:50:38,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 625 places, 857 transitions, 8305 flow. Second operand has 84 states, 84 states have (on average 98.4047619047619) internal successors, (8266), 84 states have internal predecessors, (8266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:50:38,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:50:38,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 174 [2021-11-19 04:50:38,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:50:47,072 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_t1Thread1of1ForFork0_~tmp~0#1| 4294967296)) (.cse6 (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|))) (let ((.cse0 (select (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_#in~stack#1.base|) 0)) (.cse3 (select (store .cse6 (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |c_t1Thread1of1ForFork0_push_#t~ret35#1| 4)) |c_t1Thread1of1ForFork0_push_~x#1|) 0)) (.cse4 (select .cse6 0)) (.cse2 (<= 5 .cse5)) (.cse1 (< .cse5 5))) (and (<= 0 .cse0) (<= 1 c_~top~0) .cse1 (or (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1)) (and .cse2 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0))) (= |c_t1Thread1of1ForFork0_push_~stack#1.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (= |c_~#arr~0.offset| 0) (<= 0 |c_t1Thread1of1ForFork0_push_~x#1|) (<= 0 .cse3) (<= 0 |c_t1Thread1of1ForFork0_push_#in~x#1|) (<= .cse0 4) (< (div |c_t1Thread1of1ForFork0_push_~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_~x#1| (- 1)) 4) 4294967296) 1)) (<= .cse3 4) (forall ((|v_t1Thread1of1ForFork0_push_#t~ret35#1_40| Int)) (or (< |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| |c_t1Thread1of1ForFork0_get_top_#res#1|) (forall ((|t1Thread1of1ForFork0_push_~x#1| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| 4)) |t1Thread1of1ForFork0_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296) 4294967294))))) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.offset| 0) (< |c_t1Thread1of1ForFork0_push_~x#1| 4294967296) (< (div |c_t1Thread1of1ForFork0_push_#in~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_#in~x#1| (- 1)) 4) 4294967296) 1)) (<= 0 .cse4) (= |c_t1Thread1of1ForFork0_push_~stack#1.offset| 0) (<= c_~top~0 1) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.base| |c_~#arr~0.base|) (<= 4 (* 4 |c_t1Thread1of1ForFork0_get_top_#res#1|)) (< |c_t1Thread1of1ForFork0_push_#in~x#1| 4294967296) (<= .cse4 4) (<= 4 (* 4 c_~top~0)) (= |c_t1Thread1of1ForFork0_get_top_#res#1| c_~top~0) (or (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) .cse2) (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1)))))) is different from false [2021-11-19 04:51:06,827 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (mod |c_t1Thread1of1ForFork0_~tmp~0#1| 4294967296)) (.cse5 (select |c_#memory_int| |c_~#arr~0.base|))) (let ((.cse2 (select .cse5 (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4)))) (.cse3 (select .cse5 0)) (.cse1 (<= 5 .cse4)) (.cse0 (< .cse4 5))) (and .cse0 (or (and .cse0 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1)) (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0))) (= |c_t1Thread1of1ForFork0_push_~stack#1.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (< .cse2 4294967296) (= |c_~#arr~0.offset| 0) (<= 0 |c_t1Thread1of1ForFork0_push_~x#1|) (<= 0 |c_t1Thread1of1ForFork0_push_#in~x#1|) (< (div |c_t1Thread1of1ForFork0_push_~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_~x#1| (- 1)) 4) 4294967296) 1)) (< (div .cse2 (- 4294967296)) (+ (div (+ (* .cse2 (- 1)) 4) 4294967296) 1)) (forall ((|v_t1Thread1of1ForFork0_push_#t~ret35#1_40| Int)) (or (< |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| |c_t1Thread1of1ForFork0_get_top_#res#1|) (forall ((|t1Thread1of1ForFork0_push_~x#1| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| 4)) |t1Thread1of1ForFork0_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296) 4294967294))))) (<= .cse3 4) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (<= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (< |c_t1Thread1of1ForFork0_push_~x#1| 4294967296) (<= 2 c_~top~0) (<= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (< (div |c_t1Thread1of1ForFork0_push_#in~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_#in~x#1| (- 1)) 4) 4294967296) 1)) (<= c_~top~0 2) (<= 0 .cse2) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.base| |c_~#arr~0.base|) (<= 0 .cse3) (< |c_t1Thread1of1ForFork0_push_#in~x#1| 4294967296) (<= c_~top~0 |c_t1Thread1of1ForFork0_get_top_#res#1|) (= |c_t1Thread1of1ForFork0_get_top_#res#1| c_~top~0) (or (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) .cse1) (and .cse0 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1)))))) is different from false [2021-11-19 04:51:10,550 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (mod |c_t1Thread1of1ForFork0_~tmp~0#1| 4294967296))) (let ((.cse2 (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4)))) (.cse1 (<= 5 .cse3)) (.cse0 (< .cse3 5))) (and .cse0 (or (and .cse0 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1)) (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0))) (= |c_t1Thread1of1ForFork0_push_~stack#1.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (< .cse2 4294967296) (<= 0 |c_t1Thread1of1ForFork0_push_~x#1|) (<= 0 |c_t1Thread1of1ForFork0_push_#in~x#1|) (< (div |c_t1Thread1of1ForFork0_push_~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_~x#1| (- 1)) 4) 4294967296) 1)) (< (div .cse2 (- 4294967296)) (+ (div (+ (* .cse2 (- 1)) 4) 4294967296) 1)) (forall ((|v_t1Thread1of1ForFork0_push_#t~ret35#1_40| Int)) (or (< |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| |c_t1Thread1of1ForFork0_get_top_#res#1|) (forall ((|t1Thread1of1ForFork0_push_~x#1| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| 4)) |t1Thread1of1ForFork0_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296) 4294967294))))) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (<= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (< |c_t1Thread1of1ForFork0_push_~x#1| 4294967296) (<= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (< (div |c_t1Thread1of1ForFork0_push_#in~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_#in~x#1| (- 1)) 4) 4294967296) 1)) (<= 0 .cse2) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.base| |c_~#arr~0.base|) (< |c_t1Thread1of1ForFork0_push_#in~x#1| 4294967296) (<= c_~top~0 |c_t1Thread1of1ForFork0_get_top_#res#1|) (= |c_t1Thread1of1ForFork0_get_top_#res#1| c_~top~0) (or (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) .cse1) (and .cse0 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1)))))) is different from false [2021-11-19 04:51:32,877 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 (mod |c_t1Thread1of1ForFork0_~tmp~0#1| 4294967296)) (.cse9 (select |c_#memory_int| |c_t2Thread1of1ForFork1_pop_~stack#1.base|)) (.cse11 (* c_~top~0 4)) (.cse10 (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|))) (let ((.cse0 (select (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_#in~stack#1.base|) 0)) (.cse3 (select (store .cse10 (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |c_t1Thread1of1ForFork0_push_#t~ret35#1| 4)) |c_t1Thread1of1ForFork0_push_~x#1|) 0)) (.cse6 (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| .cse11))) (.cse4 (select .cse9 (+ .cse11 |c_t2Thread1of1ForFork1_pop_~stack#1.offset|))) (.cse7 (select .cse10 0)) (.cse5 (select .cse9 (+ (* |c_t2Thread1of1ForFork1_get_top_#res#1| 4) |c_t2Thread1of1ForFork1_pop_~stack#1.offset|))) (.cse2 (<= 5 .cse8)) (.cse1 (< .cse8 5))) (and (<= 0 .cse0) (<= 1 c_~top~0) .cse1 (or (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1)) (and .cse2 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0))) (= |c_t1Thread1of1ForFork0_push_~stack#1.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (= |c_~#arr~0.offset| 0) (<= 0 |c_t1Thread1of1ForFork0_push_~x#1|) (<= 0 .cse3) (<= 0 |c_t1Thread1of1ForFork0_push_#in~x#1|) (<= .cse0 4) (< (div |c_t1Thread1of1ForFork0_push_~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_~x#1| (- 1)) 4) 4294967296) 1)) (< |c_t2Thread1of1ForFork1_pop_#res#1| 4294967296) (<= .cse3 4) (forall ((|v_t1Thread1of1ForFork0_push_#t~ret35#1_40| Int)) (or (< |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| |c_t1Thread1of1ForFork0_get_top_#res#1|) (forall ((|t1Thread1of1ForFork0_push_~x#1| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| 4)) |t1Thread1of1ForFork0_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296) 4294967294))))) (<= (div |c_t2Thread1of1ForFork1_pop_#res#1| (- 4294967296)) (div (+ (* |c_t2Thread1of1ForFork1_pop_#res#1| (- 1)) 4) 4294967296)) (<= 0 |c_t2Thread1of1ForFork1_pop_#res#1|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (< .cse4 4294967296) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.offset| 0) (< (div .cse5 (- 4294967296)) (+ (div (+ (* .cse5 (- 1)) 4) 4294967296) 1)) (< |c_t1Thread1of1ForFork0_push_~x#1| 4294967296) (< .cse6 4294967296) (< (div |c_t1Thread1of1ForFork0_push_#in~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_#in~x#1| (- 1)) 4) 4294967296) 1)) (<= 0 .cse4) (<= 0 .cse5) (<= 0 .cse7) (= |c_t1Thread1of1ForFork0_push_~stack#1.offset| 0) (<= c_~top~0 1) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.base| |c_~#arr~0.base|) (<= 4 (* 4 |c_t1Thread1of1ForFork0_get_top_#res#1|)) (<= 0 .cse6) (< (div .cse6 (- 4294967296)) (+ (div (+ (* .cse6 (- 1)) 4) 4294967296) 1)) (< (div .cse4 (- 4294967296)) (+ (div (+ (* .cse4 (- 1)) 4) 4294967296) 1)) (< |c_t1Thread1of1ForFork0_push_#in~x#1| 4294967296) (<= .cse7 4) (<= 4 (* 4 c_~top~0)) (= |c_t1Thread1of1ForFork0_get_top_#res#1| c_~top~0) (< .cse5 4294967296) (or (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) .cse2) (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1)))))) is different from false [2021-11-19 04:51:34,908 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (mod |c_t1Thread1of1ForFork0_~tmp~0#1| 4294967296)) (.cse7 (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|))) (let ((.cse0 (select (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_#in~stack#1.base|) 0)) (.cse4 (select (store .cse7 (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |c_t1Thread1of1ForFork0_push_#t~ret35#1| 4)) |c_t1Thread1of1ForFork0_push_~x#1|) 0)) (.cse3 (select (select |c_#memory_int| |c_t2Thread1of1ForFork1_pop_~stack#1.base|) 0)) (.cse5 (select .cse7 0)) (.cse2 (<= 5 .cse6)) (.cse1 (< .cse6 5))) (and (<= 0 .cse0) (<= 1 c_~top~0) .cse1 (<= 0 |c_t2Thread1of1ForFork1_get_top_#res#1|) (or (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1)) (and .cse2 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0))) (= |c_t1Thread1of1ForFork0_push_~stack#1.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (<= .cse3 4) (= |c_~#arr~0.offset| 0) (<= 0 |c_t1Thread1of1ForFork0_push_~x#1|) (<= 0 .cse4) (<= 0 |c_t1Thread1of1ForFork0_push_#in~x#1|) (<= .cse0 4) (< (div |c_t1Thread1of1ForFork0_push_~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_~x#1| (- 1)) 4) 4294967296) 1)) (< |c_t2Thread1of1ForFork1_pop_#res#1| 4294967296) (<= .cse4 4) (forall ((|v_t1Thread1of1ForFork0_push_#t~ret35#1_40| Int)) (or (< |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| |c_t1Thread1of1ForFork0_get_top_#res#1|) (forall ((|t1Thread1of1ForFork0_push_~x#1| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| 4)) |t1Thread1of1ForFork0_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296) 4294967294))))) (<= (div |c_t2Thread1of1ForFork1_pop_#res#1| (- 4294967296)) (div (+ (* |c_t2Thread1of1ForFork1_pop_#res#1| (- 1)) 4) 4294967296)) (<= 0 |c_t2Thread1of1ForFork1_pop_#res#1|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (= |c_t2Thread1of1ForFork1_pop_~stack#1.offset| 0) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.offset| 0) (< |c_t1Thread1of1ForFork0_push_~x#1| 4294967296) (<= |c_t2Thread1of1ForFork1_get_top_#res#1| 0) (< (div |c_t1Thread1of1ForFork0_push_#in~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_#in~x#1| (- 1)) 4) 4294967296) 1)) (<= 0 .cse5) (= |c_t1Thread1of1ForFork0_push_~stack#1.offset| 0) (<= c_~top~0 1) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.base| |c_~#arr~0.base|) (<= 0 .cse3) (<= 4 (* 4 |c_t1Thread1of1ForFork0_get_top_#res#1|)) (< |c_t1Thread1of1ForFork0_push_#in~x#1| 4294967296) (<= .cse5 4) (<= 4 (* 4 c_~top~0)) (= |c_t1Thread1of1ForFork0_get_top_#res#1| c_~top~0) (or (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) .cse2) (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1)))))) is different from false [2021-11-19 04:51:38,189 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (mod |c_t1Thread1of1ForFork0_~tmp~0#1| 4294967296)) (.cse5 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse6 (* c_~top~0 4))) (let ((.cse3 (select .cse5 (+ |c_~#arr~0.offset| .cse6 (- 4)))) (.cse0 (select .cse5 (+ |c_~#arr~0.offset| .cse6 (- 8)))) (.cse2 (<= 5 .cse4)) (.cse1 (< .cse4 5))) (and (<= 0 .cse0) .cse1 (or (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1)) (and .cse2 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0))) (= |c_t1Thread1of1ForFork0_push_~stack#1.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (< .cse3 4294967296) (<= 0 |c_t1Thread1of1ForFork0_push_~x#1|) (<= 0 |c_t1Thread1of1ForFork0_push_#in~x#1|) (< (div |c_t1Thread1of1ForFork0_push_~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_~x#1| (- 1)) 4) 4294967296) 1)) (< (div .cse3 (- 4294967296)) (+ (div (+ (* .cse3 (- 1)) 4) 4294967296) 1)) (forall ((|v_t1Thread1of1ForFork0_push_#t~ret35#1_40| Int)) (or (< |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| |c_t1Thread1of1ForFork0_get_top_#res#1|) (forall ((|t1Thread1of1ForFork0_push_~x#1| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| 4)) |t1Thread1of1ForFork0_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296) 4294967294))))) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (<= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (< |c_t1Thread1of1ForFork0_push_~x#1| 4294967296) (< (div .cse0 (- 4294967296)) (+ (div (+ 4 (* .cse0 (- 1))) 4294967296) 1)) (<= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (< (div |c_t1Thread1of1ForFork0_push_#in~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_#in~x#1| (- 1)) 4) 4294967296) 1)) (<= 0 .cse3) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.base| |c_~#arr~0.base|) (< .cse0 4294967296) (< |c_t1Thread1of1ForFork0_push_#in~x#1| 4294967296) (<= c_~top~0 |c_t1Thread1of1ForFork0_get_top_#res#1|) (= |c_t1Thread1of1ForFork0_get_top_#res#1| c_~top~0) (or (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) .cse2) (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1)))))) is different from false [2021-11-19 04:51:54,859 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_t1Thread1of1ForFork0_~tmp~0#1| 4294967296)) (.cse6 (select |c_#memory_int| |c_t2Thread1of1ForFork1_pop_~stack#1.base|)) (.cse7 (* c_~top~0 4))) (let ((.cse2 (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| .cse7 (- 4)))) (.cse3 (select .cse6 (+ .cse7 |c_t2Thread1of1ForFork1_pop_~stack#1.offset|))) (.cse4 (select .cse6 (+ (* |c_t2Thread1of1ForFork1_get_top_#res#1| 4) |c_t2Thread1of1ForFork1_pop_~stack#1.offset|))) (.cse1 (<= 5 .cse5)) (.cse0 (< .cse5 5))) (and .cse0 (or (and .cse0 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1)) (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0))) (= |c_t1Thread1of1ForFork0_push_~stack#1.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (< .cse2 4294967296) (<= 0 |c_t1Thread1of1ForFork0_push_~x#1|) (<= 0 |c_t1Thread1of1ForFork0_push_#in~x#1|) (< (div |c_t1Thread1of1ForFork0_push_~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_~x#1| (- 1)) 4) 4294967296) 1)) (< |c_t2Thread1of1ForFork1_pop_#res#1| 4294967296) (< (div .cse2 (- 4294967296)) (+ (div (+ (* .cse2 (- 1)) 4) 4294967296) 1)) (forall ((|v_t1Thread1of1ForFork0_push_#t~ret35#1_40| Int)) (or (< |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| |c_t1Thread1of1ForFork0_get_top_#res#1|) (forall ((|t1Thread1of1ForFork0_push_~x#1| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| 4)) |t1Thread1of1ForFork0_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296) 4294967294))))) (<= (div |c_t2Thread1of1ForFork1_pop_#res#1| (- 4294967296)) (div (+ (* |c_t2Thread1of1ForFork1_pop_#res#1| (- 1)) 4) 4294967296)) (<= 0 |c_t2Thread1of1ForFork1_pop_#res#1|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (< .cse3 4294967296) (<= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (< (div .cse4 (- 4294967296)) (+ (div (+ (* .cse4 (- 1)) 4) 4294967296) 1)) (< |c_t1Thread1of1ForFork0_push_~x#1| 4294967296) (<= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (< (div |c_t1Thread1of1ForFork0_push_#in~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_#in~x#1| (- 1)) 4) 4294967296) 1)) (<= 0 .cse3) (<= 0 .cse4) (<= 0 .cse2) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.base| |c_~#arr~0.base|) (< (div .cse3 (- 4294967296)) (+ (div (+ (* .cse3 (- 1)) 4) 4294967296) 1)) (< |c_t1Thread1of1ForFork0_push_#in~x#1| 4294967296) (<= c_~top~0 |c_t1Thread1of1ForFork0_get_top_#res#1|) (= |c_t1Thread1of1ForFork0_get_top_#res#1| c_~top~0) (< .cse4 4294967296) (or (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) .cse1) (and .cse0 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1)))))) is different from false [2021-11-19 04:51:56,922 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (mod |c_t1Thread1of1ForFork0_~tmp~0#1| 4294967296))) (let ((.cse2 (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4)))) (.cse3 (select (select |c_#memory_int| |c_t2Thread1of1ForFork1_pop_~stack#1.base|) (+ (* |c_t2Thread1of1ForFork1_get_top_#res#1| 4) |c_t2Thread1of1ForFork1_pop_~stack#1.offset|))) (.cse1 (<= 5 .cse4)) (.cse0 (< .cse4 5))) (and .cse0 (or (and .cse0 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1)) (and .cse1 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0))) (= |c_t1Thread1of1ForFork0_push_~stack#1.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (< .cse2 4294967296) (<= 0 |c_t1Thread1of1ForFork0_push_~x#1|) (<= 0 |c_t1Thread1of1ForFork0_push_#in~x#1|) (< (div |c_t1Thread1of1ForFork0_push_~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_~x#1| (- 1)) 4) 4294967296) 1)) (< |c_t2Thread1of1ForFork1_pop_#res#1| 4294967296) (< (div .cse2 (- 4294967296)) (+ (div (+ (* .cse2 (- 1)) 4) 4294967296) 1)) (forall ((|v_t1Thread1of1ForFork0_push_#t~ret35#1_40| Int)) (or (< |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| |c_t1Thread1of1ForFork0_get_top_#res#1|) (forall ((|t1Thread1of1ForFork0_push_~x#1| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork0_push_~stack#1.offset| (* |v_t1Thread1of1ForFork0_push_#t~ret35#1_40| 4)) |t1Thread1of1ForFork0_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296) 4294967294))))) (<= (div |c_t2Thread1of1ForFork1_pop_#res#1| (- 4294967296)) (div (+ (* |c_t2Thread1of1ForFork1_pop_#res#1| (- 1)) 4) 4294967296)) (<= 0 |c_t2Thread1of1ForFork1_pop_#res#1|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (<= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_~stack#1.offset|) (< (div .cse3 (- 4294967296)) (+ (div (+ (* .cse3 (- 1)) 4) 4294967296) 1)) (< |c_t1Thread1of1ForFork0_push_~x#1| 4294967296) (<= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack#1.offset|) (< (div |c_t1Thread1of1ForFork0_push_#in~x#1| (- 4294967296)) (+ (div (+ (* |c_t1Thread1of1ForFork0_push_#in~x#1| (- 1)) 4) 4294967296) 1)) (<= 0 .cse3) (<= 0 .cse2) (= |c_t1Thread1of1ForFork0_push_#in~stack#1.base| |c_~#arr~0.base|) (< |c_t1Thread1of1ForFork0_push_#in~x#1| 4294967296) (<= c_~top~0 |c_t1Thread1of1ForFork0_get_top_#res#1|) (= |c_t1Thread1of1ForFork0_get_top_#res#1| c_~top~0) (< .cse3 4294967296) (or (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) .cse1) (and .cse0 (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1)))))) is different from false [2021-11-19 04:52:27,461 INFO L129 PetriNetUnfolder]: 13052/55944 cut-off events. [2021-11-19 04:52:27,461 INFO L130 PetriNetUnfolder]: For 199460/199486 co-relation queries the response was YES. [2021-11-19 04:52:29,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171504 conditions, 55944 events. 13052/55944 cut-off events. For 199460/199486 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 645560 event pairs, 2190 based on Foata normal form. 102/54649 useless extension candidates. Maximal degree in co-relation 160178. Up to 6834 conditions per place. [2021-11-19 04:52:29,385 INFO L132 encePairwiseOnDemand]: 132/174 looper letters, 1249 selfloop transitions, 1283 changer transitions 96/2728 dead transitions. [2021-11-19 04:52:29,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 865 places, 2728 transitions, 26471 flow [2021-11-19 04:52:29,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2021-11-19 04:52:29,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states.