./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c5d098180a5596f0a60d3177354c69a5ee6da68b8191dc75b6c33b291ef0421 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:04:46,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:04:46,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:04:46,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:04:46,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:04:46,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:04:46,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:04:46,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:04:46,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:04:46,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:04:46,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:04:46,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:04:46,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:04:46,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:04:46,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:04:46,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:04:46,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:04:46,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:04:46,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:04:46,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:04:46,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:04:46,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:04:46,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:04:46,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:04:46,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:04:46,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:04:46,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:04:46,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:04:46,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:04:46,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:04:46,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:04:46,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:04:46,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:04:46,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:04:46,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:04:46,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:04:46,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:04:46,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:04:46,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:04:46,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:04:46,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:04:46,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:04:46,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:04:46,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:04:46,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:04:46,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:04:46,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:04:46,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:04:46,561 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:04:46,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:04:46,562 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:04:46,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:04:46,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:04:46,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:04:46,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:04:46,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:04:46,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:04:46,564 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:04:46,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:04:46,565 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:04:46,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:04:46,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:04:46,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:04:46,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:04:46,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:04:46,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:04:46,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:04:46,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:04:46,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:04:46,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:04:46,568 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:04:46,570 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:04:46,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:04:46,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:04:46,571 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_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5d098180a5596f0a60d3177354c69a5ee6da68b8191dc75b6c33b291ef0421 [2021-10-21 19:04:46,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:04:46,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:04:46,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:04:46,882 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:04:46,882 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:04:46,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/pthread/stack-2.i [2021-10-21 19:04:46,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/data/af10d8f0f/f7c963c6e80849279822729034ea956d/FLAG6476dac71 [2021-10-21 19:04:47,594 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:04:47,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/sv-benchmarks/c/pthread/stack-2.i [2021-10-21 19:04:47,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/data/af10d8f0f/f7c963c6e80849279822729034ea956d/FLAG6476dac71 [2021-10-21 19:04:47,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/data/af10d8f0f/f7c963c6e80849279822729034ea956d [2021-10-21 19:04:47,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:04:47,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:04:47,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:04:47,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:04:47,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:04:47,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:04:47" (1/1) ... [2021-10-21 19:04:47,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330ee048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:47, skipping insertion in model container [2021-10-21 19:04:47,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:04:47" (1/1) ... [2021-10-21 19:04:47,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:04:47,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:04:48,351 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/sv-benchmarks/c/pthread/stack-2.i[41520,41533] [2021-10-21 19:04:48,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:04:48,415 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:04:48,454 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/sv-benchmarks/c/pthread/stack-2.i[41520,41533] [2021-10-21 19:04:48,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:04:48,550 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:04:48,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48 WrapperNode [2021-10-21 19:04:48,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:04:48,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:04:48,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:04:48,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:04:48,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (1/1) ... [2021-10-21 19:04:48,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (1/1) ... [2021-10-21 19:04:48,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:04:48,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:04:48,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:04:48,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:04:48,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (1/1) ... [2021-10-21 19:04:48,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (1/1) ... [2021-10-21 19:04:48,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (1/1) ... [2021-10-21 19:04:48,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (1/1) ... [2021-10-21 19:04:48,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (1/1) ... [2021-10-21 19:04:48,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (1/1) ... [2021-10-21 19:04:48,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (1/1) ... [2021-10-21 19:04:48,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:04:48,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:04:48,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:04:48,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:04:48,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (1/1) ... [2021-10-21 19:04:48,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:04:48,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:48,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:04:48,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:04:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-10-21 19:04:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-10-21 19:04:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-10-21 19:04:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-10-21 19:04:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:04:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:04:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:04:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:04:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-21 19:04:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:04:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:04:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:04:48,792 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-21 19:04:49,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:04:49,304 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-21 19:04:49,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:04:49 BoogieIcfgContainer [2021-10-21 19:04:49,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:04:49,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:04:49,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:04:49,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:04:49,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:04:47" (1/3) ... [2021-10-21 19:04:49,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ad81f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:04:49, skipping insertion in model container [2021-10-21 19:04:49,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:04:48" (2/3) ... [2021-10-21 19:04:49,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ad81f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:04:49, skipping insertion in model container [2021-10-21 19:04:49,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:04:49" (3/3) ... [2021-10-21 19:04:49,358 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-2.i [2021-10-21 19:04:49,364 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-21 19:04:49,364 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:04:49,364 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-21 19:04:49,364 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-21 19:04:49,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,451 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,452 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,452 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,452 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,453 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,453 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,453 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,454 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,454 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,454 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,454 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,454 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,455 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,456 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,472 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,472 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,472 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,472 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,472 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,473 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,473 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,473 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,473 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,473 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,474 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,474 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,474 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,474 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,474 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,475 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,475 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,475 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,475 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,476 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,476 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,476 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,476 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,477 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,477 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,477 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,477 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,477 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,477 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,478 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,478 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,478 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,478 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,479 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,479 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,479 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,479 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,479 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,480 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,480 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,480 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,480 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,480 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,481 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,481 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,481 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,481 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,481 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,482 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,482 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,482 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,482 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,482 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,483 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,483 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,483 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,484 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,484 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,484 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,484 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,484 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,487 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,487 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,487 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,488 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,488 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,489 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,490 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,490 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,490 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,491 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,491 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,491 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,494 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,495 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,495 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,495 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,495 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,495 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,496 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,496 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,496 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,497 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,497 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,498 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,498 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,499 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,499 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,499 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,500 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,500 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,500 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,500 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,501 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,501 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,502 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,503 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,504 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,504 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,506 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,506 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,507 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,507 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,507 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,507 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,507 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,508 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,508 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,508 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,508 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,508 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,509 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,509 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,509 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,512 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,512 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,512 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,512 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,513 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,513 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,513 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,513 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,513 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,514 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,514 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,515 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,515 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,515 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,518 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,518 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,518 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,518 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,518 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,519 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,519 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,520 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,521 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,522 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,523 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,527 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,527 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,527 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,527 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,528 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,529 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,529 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,530 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,530 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,537 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,550 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,551 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,551 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,551 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,551 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,552 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,552 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,552 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,552 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,553 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,553 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,553 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,553 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,554 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,554 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,554 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,554 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,556 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,556 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,557 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,557 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,557 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,557 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,557 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,558 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,558 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,558 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,558 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,559 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,563 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,578 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,578 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,578 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,579 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,579 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,579 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,579 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,580 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,580 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,580 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,580 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,580 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,580 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,581 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,581 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,581 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,581 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,581 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,582 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,583 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,583 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,583 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,591 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,594 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,594 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,595 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,596 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,597 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,597 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,597 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,597 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,597 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 19:04:49,616 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-21 19:04:49,677 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:04:49,682 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:04:49,683 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-21 19:04:49,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 159 transitions, 334 flow [2021-10-21 19:04:49,807 INFO L129 PetriNetUnfolder]: 10/157 cut-off events. [2021-10-21 19:04:49,807 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-21 19:04:49,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 10/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 358 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 115. Up to 3 conditions per place. [2021-10-21 19:04:49,817 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 159 transitions, 334 flow [2021-10-21 19:04:49,829 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 148 transitions, 305 flow [2021-10-21 19:04:49,888 INFO L129 PetriNetUnfolder]: 4/120 cut-off events. [2021-10-21 19:04:49,888 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-21 19:04:49,888 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:04:49,889 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] [2021-10-21 19:04:49,889 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-21 19:04:49,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:49,908 INFO L82 PathProgramCache]: Analyzing trace with hash 151175322, now seen corresponding path program 1 times [2021-10-21 19:04:49,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:49,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914213817] [2021-10-21 19:04:49,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:49,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:50,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:50,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:50,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914213817] [2021-10-21 19:04:50,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914213817] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:04:50,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:04:50,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:04:50,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354364407] [2021-10-21 19:04:50,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:04:50,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:50,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:04:50,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:04:50,354 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 159 [2021-10-21 19:04:50,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 148 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:50,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:04:50,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 159 [2021-10-21 19:04:50,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:04:50,537 INFO L129 PetriNetUnfolder]: 68/652 cut-off events. [2021-10-21 19:04:50,537 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-10-21 19:04:50,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 757 conditions, 652 events. 68/652 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3640 event pairs, 10 based on Foata normal form. 57/648 useless extension candidates. Maximal degree in co-relation 710. Up to 71 conditions per place. [2021-10-21 19:04:50,548 INFO L132 encePairwiseOnDemand]: 150/159 looper letters, 14 selfloop transitions, 3 changer transitions 0/148 dead transitions. [2021-10-21 19:04:50,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 148 transitions, 339 flow [2021-10-21 19:04:50,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:04:50,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-21 19:04:50,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2021-10-21 19:04:50,565 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.949685534591195 [2021-10-21 19:04:50,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2021-10-21 19:04:50,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2021-10-21 19:04:50,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:04:50,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2021-10-21 19:04:50,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:50,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:50,584 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:50,586 INFO L186 Difference]: Start difference. First operand has 145 places, 148 transitions, 305 flow. Second operand 3 states and 453 transitions. [2021-10-21 19:04:50,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 148 transitions, 339 flow [2021-10-21 19:04:50,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 148 transitions, 334 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-21 19:04:50,597 INFO L242 Difference]: Finished difference. Result has 143 places, 143 transitions, 305 flow [2021-10-21 19:04:50,600 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=143, PETRI_TRANSITIONS=143} [2021-10-21 19:04:50,601 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, -2 predicate places. [2021-10-21 19:04:50,601 INFO L470 AbstractCegarLoop]: Abstraction has has 143 places, 143 transitions, 305 flow [2021-10-21 19:04:50,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:50,602 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:04:50,602 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] [2021-10-21 19:04:50,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:04:50,603 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-21 19:04:50,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:50,603 INFO L82 PathProgramCache]: Analyzing trace with hash -942282309, now seen corresponding path program 1 times [2021-10-21 19:04:50,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:50,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476184079] [2021-10-21 19:04:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:50,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:50,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:50,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476184079] [2021-10-21 19:04:50,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476184079] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:04:50,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:04:50,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:04:50,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073291996] [2021-10-21 19:04:50,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:04:50,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:50,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:04:50,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:04:50,804 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 159 [2021-10-21 19:04:50,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 143 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:50,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:04:50,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 159 [2021-10-21 19:04:50,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:04:50,869 INFO L129 PetriNetUnfolder]: 13/269 cut-off events. [2021-10-21 19:04:50,869 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-21 19:04:50,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 269 events. 13/269 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 643 event pairs, 2 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 250. Up to 11 conditions per place. [2021-10-21 19:04:50,873 INFO L132 encePairwiseOnDemand]: 156/159 looper letters, 4 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2021-10-21 19:04:50,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 144 transitions, 316 flow [2021-10-21 19:04:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:04:50,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-21 19:04:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2021-10-21 19:04:50,879 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9454926624737946 [2021-10-21 19:04:50,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2021-10-21 19:04:50,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2021-10-21 19:04:50,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:04:50,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2021-10-21 19:04:50,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:50,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:50,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:50,888 INFO L186 Difference]: Start difference. First operand has 143 places, 143 transitions, 305 flow. Second operand 3 states and 451 transitions. [2021-10-21 19:04:50,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 144 transitions, 316 flow [2021-10-21 19:04:50,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 144 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-21 19:04:50,899 INFO L242 Difference]: Finished difference. Result has 145 places, 143 transitions, 310 flow [2021-10-21 19:04:50,900 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=145, PETRI_TRANSITIONS=143} [2021-10-21 19:04:50,900 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 0 predicate places. [2021-10-21 19:04:50,901 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 143 transitions, 310 flow [2021-10-21 19:04:50,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:50,901 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:04:50,902 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] [2021-10-21 19:04:50,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:04:50,902 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-21 19:04:50,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:50,906 INFO L82 PathProgramCache]: Analyzing trace with hash 432935090, now seen corresponding path program 1 times [2021-10-21 19:04:50,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:50,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277438696] [2021-10-21 19:04:50,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:50,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:51,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:51,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:51,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277438696] [2021-10-21 19:04:51,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277438696] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:04:51,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:04:51,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:04:51,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000737665] [2021-10-21 19:04:51,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:04:51,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:51,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:04:51,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:04:51,048 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 159 [2021-10-21 19:04:51,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 143 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:51,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:04:51,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 159 [2021-10-21 19:04:51,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:04:51,179 INFO L129 PetriNetUnfolder]: 21/362 cut-off events. [2021-10-21 19:04:51,180 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-21 19:04:51,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 362 events. 21/362 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 883 event pairs, 3 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 369. Up to 14 conditions per place. [2021-10-21 19:04:51,185 INFO L132 encePairwiseOnDemand]: 154/159 looper letters, 11 selfloop transitions, 4 changer transitions 0/148 dead transitions. [2021-10-21 19:04:51,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 148 transitions, 350 flow [2021-10-21 19:04:51,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:04:51,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-21 19:04:51,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 584 transitions. [2021-10-21 19:04:51,189 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9182389937106918 [2021-10-21 19:04:51,189 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 584 transitions. [2021-10-21 19:04:51,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 584 transitions. [2021-10-21 19:04:51,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:04:51,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 584 transitions. [2021-10-21 19:04:51,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:51,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:51,197 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:51,197 INFO L186 Difference]: Start difference. First operand has 145 places, 143 transitions, 310 flow. Second operand 4 states and 584 transitions. [2021-10-21 19:04:51,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 148 transitions, 350 flow [2021-10-21 19:04:51,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 148 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-21 19:04:51,207 INFO L242 Difference]: Finished difference. Result has 149 places, 146 transitions, 336 flow [2021-10-21 19:04:51,208 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=336, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2021-10-21 19:04:51,208 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 4 predicate places. [2021-10-21 19:04:51,208 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 336 flow [2021-10-21 19:04:51,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:51,210 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:04:51,212 INFO L254 CegarLoopForPetriNet]: trace histogram [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] [2021-10-21 19:04:51,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:04:51,213 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-21 19:04:51,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:51,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1687086282, now seen corresponding path program 1 times [2021-10-21 19:04:51,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:51,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210726173] [2021-10-21 19:04:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:51,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:51,422 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:51,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:51,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210726173] [2021-10-21 19:04:51,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210726173] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:51,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781235960] [2021-10-21 19:04:51,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:51,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:51,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:51,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:51,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:04:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:51,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:04:51,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:52,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781235960] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:52,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:52,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-21 19:04:52,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870119862] [2021-10-21 19:04:52,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:04:52,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:52,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:04:52,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:04:52,087 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 159 [2021-10-21 19:04:52,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 336 flow. Second operand has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:04:52,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 159 [2021-10-21 19:04:52,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:04:52,327 INFO L129 PetriNetUnfolder]: 91/778 cut-off events. [2021-10-21 19:04:52,327 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-10-21 19:04:52,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 778 events. 91/778 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4131 event pairs, 15 based on Foata normal form. 3/723 useless extension candidates. Maximal degree in co-relation 963. Up to 90 conditions per place. [2021-10-21 19:04:52,338 INFO L132 encePairwiseOnDemand]: 153/159 looper letters, 21 selfloop transitions, 6 changer transitions 0/159 dead transitions. [2021-10-21 19:04:52,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 159 transitions, 420 flow [2021-10-21 19:04:52,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:04:52,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-21 19:04:52,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 862 transitions. [2021-10-21 19:04:52,343 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9035639412997903 [2021-10-21 19:04:52,343 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 862 transitions. [2021-10-21 19:04:52,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 862 transitions. [2021-10-21 19:04:52,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:04:52,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 862 transitions. [2021-10-21 19:04:52,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,353 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,353 INFO L186 Difference]: Start difference. First operand has 149 places, 146 transitions, 336 flow. Second operand 6 states and 862 transitions. [2021-10-21 19:04:52,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 159 transitions, 420 flow [2021-10-21 19:04:52,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 159 transitions, 418 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-21 19:04:52,361 INFO L242 Difference]: Finished difference. Result has 156 places, 150 transitions, 375 flow [2021-10-21 19:04:52,362 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=375, PETRI_PLACES=156, PETRI_TRANSITIONS=150} [2021-10-21 19:04:52,362 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 11 predicate places. [2021-10-21 19:04:52,362 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 150 transitions, 375 flow [2021-10-21 19:04:52,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,364 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:04:52,364 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] [2021-10-21 19:04:52,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:04:52,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-10-21 19:04:52,590 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-21 19:04:52,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:52,591 INFO L82 PathProgramCache]: Analyzing trace with hash -83116759, now seen corresponding path program 1 times [2021-10-21 19:04:52,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:52,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159541157] [2021-10-21 19:04:52,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:52,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:52,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:52,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:52,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159541157] [2021-10-21 19:04:52,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159541157] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:04:52,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:04:52,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:04:52,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093867131] [2021-10-21 19:04:52,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:04:52,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:52,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:04:52,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:04:52,701 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 159 [2021-10-21 19:04:52,702 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 150 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,702 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:04:52,702 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 159 [2021-10-21 19:04:52,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:04:52,803 INFO L129 PetriNetUnfolder]: 16/452 cut-off events. [2021-10-21 19:04:52,803 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-10-21 19:04:52,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 452 events. 16/452 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1218 event pairs, 1 based on Foata normal form. 10/440 useless extension candidates. Maximal degree in co-relation 520. Up to 18 conditions per place. [2021-10-21 19:04:52,807 INFO L132 encePairwiseOnDemand]: 155/159 looper letters, 7 selfloop transitions, 4 changer transitions 0/150 dead transitions. [2021-10-21 19:04:52,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 150 transitions, 397 flow [2021-10-21 19:04:52,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:04:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-21 19:04:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2021-10-21 19:04:52,810 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9140461215932913 [2021-10-21 19:04:52,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2021-10-21 19:04:52,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2021-10-21 19:04:52,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:04:52,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2021-10-21 19:04:52,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,816 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,816 INFO L186 Difference]: Start difference. First operand has 156 places, 150 transitions, 375 flow. Second operand 3 states and 436 transitions. [2021-10-21 19:04:52,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 150 transitions, 397 flow [2021-10-21 19:04:52,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 150 transitions, 386 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-10-21 19:04:52,824 INFO L242 Difference]: Finished difference. Result has 156 places, 150 transitions, 372 flow [2021-10-21 19:04:52,825 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=156, PETRI_TRANSITIONS=150} [2021-10-21 19:04:52,825 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 11 predicate places. [2021-10-21 19:04:52,825 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 150 transitions, 372 flow [2021-10-21 19:04:52,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,826 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:04:52,826 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] [2021-10-21 19:04:52,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:04:52,827 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-21 19:04:52,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:52,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1234558621, now seen corresponding path program 1 times [2021-10-21 19:04:52,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:52,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825249833] [2021-10-21 19:04:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:52,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:52,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:52,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825249833] [2021-10-21 19:04:52,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825249833] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:04:52,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:04:52,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 19:04:52,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238147305] [2021-10-21 19:04:52,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:04:52,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:52,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:04:52,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:04:52,975 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 159 [2021-10-21 19:04:52,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 150 transitions, 372 flow. Second operand has 7 states, 7 states have (on average 130.28571428571428) internal successors, (912), 7 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:52,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:04:52,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 159 [2021-10-21 19:04:52,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:04:53,234 INFO L129 PetriNetUnfolder]: 44/685 cut-off events. [2021-10-21 19:04:53,234 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2021-10-21 19:04:53,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1045 conditions, 685 events. 44/685 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2425 event pairs, 4 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 580. Up to 61 conditions per place. [2021-10-21 19:04:53,243 INFO L132 encePairwiseOnDemand]: 148/159 looper letters, 39 selfloop transitions, 13 changer transitions 0/173 dead transitions. [2021-10-21 19:04:53,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 173 transitions, 542 flow [2021-10-21 19:04:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:04:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 19:04:53,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1203 transitions. [2021-10-21 19:04:53,249 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8406708595387841 [2021-10-21 19:04:53,249 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1203 transitions. [2021-10-21 19:04:53,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1203 transitions. [2021-10-21 19:04:53,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:04:53,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1203 transitions. [2021-10-21 19:04:53,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 133.66666666666666) internal successors, (1203), 9 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:53,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:53,259 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:53,260 INFO L186 Difference]: Start difference. First operand has 156 places, 150 transitions, 372 flow. Second operand 9 states and 1203 transitions. [2021-10-21 19:04:53,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 173 transitions, 542 flow [2021-10-21 19:04:53,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 173 transitions, 538 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-21 19:04:53,267 INFO L242 Difference]: Finished difference. Result has 168 places, 157 transitions, 454 flow [2021-10-21 19:04:53,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=454, PETRI_PLACES=168, PETRI_TRANSITIONS=157} [2021-10-21 19:04:53,268 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 23 predicate places. [2021-10-21 19:04:53,268 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 157 transitions, 454 flow [2021-10-21 19:04:53,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 130.28571428571428) internal successors, (912), 7 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:53,269 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:04:53,270 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] [2021-10-21 19:04:53,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:04:53,270 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-21 19:04:53,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:53,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1768134668, now seen corresponding path program 1 times [2021-10-21 19:04:53,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:53,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739853818] [2021-10-21 19:04:53,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:53,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:54,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:54,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:54,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739853818] [2021-10-21 19:04:54,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739853818] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:04:54,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:04:54,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-10-21 19:04:54,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422794691] [2021-10-21 19:04:54,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-21 19:04:54,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:54,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-21 19:04:54,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2021-10-21 19:04:54,720 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 159 [2021-10-21 19:04:54,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 157 transitions, 454 flow. Second operand has 28 states, 28 states have (on average 66.71428571428571) internal successors, (1868), 28 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:54,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:04:54,724 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 159 [2021-10-21 19:04:54,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:04:59,108 INFO L129 PetriNetUnfolder]: 1420/4354 cut-off events. [2021-10-21 19:04:59,108 INFO L130 PetriNetUnfolder]: For 540/540 co-relation queries the response was YES. [2021-10-21 19:04:59,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8668 conditions, 4354 events. 1420/4354 cut-off events. For 540/540 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 29948 event pairs, 403 based on Foata normal form. 6/4194 useless extension candidates. Maximal degree in co-relation 4738. Up to 1692 conditions per place. [2021-10-21 19:04:59,160 INFO L132 encePairwiseOnDemand]: 122/159 looper letters, 329 selfloop transitions, 43 changer transitions 3/436 dead transitions. [2021-10-21 19:04:59,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 436 transitions, 1888 flow [2021-10-21 19:04:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-21 19:04:59,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-10-21 19:04:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2671 transitions. [2021-10-21 19:04:59,175 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4666317260656883 [2021-10-21 19:04:59,175 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2671 transitions. [2021-10-21 19:04:59,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2671 transitions. [2021-10-21 19:04:59,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:04:59,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2671 transitions. [2021-10-21 19:04:59,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 74.19444444444444) internal successors, (2671), 36 states have internal predecessors, (2671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:59,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 159.0) internal successors, (5883), 37 states have internal predecessors, (5883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:59,250 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 159.0) internal successors, (5883), 37 states have internal predecessors, (5883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:59,250 INFO L186 Difference]: Start difference. First operand has 168 places, 157 transitions, 454 flow. Second operand 36 states and 2671 transitions. [2021-10-21 19:04:59,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 436 transitions, 1888 flow [2021-10-21 19:04:59,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 436 transitions, 1881 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-21 19:04:59,268 INFO L242 Difference]: Finished difference. Result has 227 places, 193 transitions, 771 flow [2021-10-21 19:04:59,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=771, PETRI_PLACES=227, PETRI_TRANSITIONS=193} [2021-10-21 19:04:59,269 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 82 predicate places. [2021-10-21 19:04:59,269 INFO L470 AbstractCegarLoop]: Abstraction has has 227 places, 193 transitions, 771 flow [2021-10-21 19:04:59,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 66.71428571428571) internal successors, (1868), 28 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:59,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:04:59,271 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] [2021-10-21 19:04:59,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:04:59,271 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-21 19:04:59,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:59,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1656063546, now seen corresponding path program 2 times [2021-10-21 19:04:59,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:59,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700554044] [2021-10-21 19:04:59,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:59,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:00,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:00,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700554044] [2021-10-21 19:05:00,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700554044] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:05:00,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:05:00,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-10-21 19:05:00,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527998864] [2021-10-21 19:05:00,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-21 19:05:00,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:00,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-21 19:05:00,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2021-10-21 19:05:00,626 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 159 [2021-10-21 19:05:00,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 193 transitions, 771 flow. Second operand has 28 states, 28 states have (on average 66.71428571428571) internal successors, (1868), 28 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:00,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:05:00,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 159 [2021-10-21 19:05:00,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:05:07,378 INFO L129 PetriNetUnfolder]: 1998/6080 cut-off events. [2021-10-21 19:05:07,379 INFO L130 PetriNetUnfolder]: For 1828/1828 co-relation queries the response was YES. [2021-10-21 19:05:07,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13829 conditions, 6080 events. 1998/6080 cut-off events. For 1828/1828 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 44036 event pairs, 208 based on Foata normal form. 22/5988 useless extension candidates. Maximal degree in co-relation 11071. Up to 1372 conditions per place. [2021-10-21 19:05:07,468 INFO L132 encePairwiseOnDemand]: 125/159 looper letters, 406 selfloop transitions, 89 changer transitions 5/561 dead transitions. [2021-10-21 19:05:07,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 561 transitions, 2912 flow [2021-10-21 19:05:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-21 19:05:07,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-10-21 19:05:07,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 3986 transitions. [2021-10-21 19:05:07,486 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.45580331618067466 [2021-10-21 19:05:07,486 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 3986 transitions. [2021-10-21 19:05:07,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 3986 transitions. [2021-10-21 19:05:07,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:05:07,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 3986 transitions. [2021-10-21 19:05:07,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 72.47272727272727) internal successors, (3986), 55 states have internal predecessors, (3986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:07,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 159.0) internal successors, (8904), 56 states have internal predecessors, (8904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:07,528 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 159.0) internal successors, (8904), 56 states have internal predecessors, (8904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:07,529 INFO L186 Difference]: Start difference. First operand has 227 places, 193 transitions, 771 flow. Second operand 55 states and 3986 transitions. [2021-10-21 19:05:07,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 561 transitions, 2912 flow [2021-10-21 19:05:07,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 561 transitions, 2888 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-10-21 19:05:07,559 INFO L242 Difference]: Finished difference. Result has 312 places, 243 transitions, 1399 flow [2021-10-21 19:05:07,560 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=55, PETRI_FLOW=1399, PETRI_PLACES=312, PETRI_TRANSITIONS=243} [2021-10-21 19:05:07,560 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 167 predicate places. [2021-10-21 19:05:07,561 INFO L470 AbstractCegarLoop]: Abstraction has has 312 places, 243 transitions, 1399 flow [2021-10-21 19:05:07,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 66.71428571428571) internal successors, (1868), 28 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:07,562 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:05:07,569 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:07,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-21 19:05:07,579 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-21 19:05:07,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:07,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1387605350, now seen corresponding path program 2 times [2021-10-21 19:05:07,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:07,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823820873] [2021-10-21 19:05:07,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:07,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:07,692 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:07,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:07,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823820873] [2021-10-21 19:05:07,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823820873] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:07,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829705763] [2021-10-21 19:05:07,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:05:07,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:07,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:07,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:07,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:05:07,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:05:07,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:07,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:05:07,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:08,366 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:08,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829705763] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:08,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:08,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-21 19:05:08,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937930162] [2021-10-21 19:05:08,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:05:08,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:08,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:05:08,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:05:08,375 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 159 [2021-10-21 19:05:08,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 243 transitions, 1399 flow. Second operand has 9 states, 9 states have (on average 141.44444444444446) internal successors, (1273), 9 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:08,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 19:05:08,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 159 [2021-10-21 19:05:08,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 19:05:08,836 INFO L129 PetriNetUnfolder]: 60/1388 cut-off events. [2021-10-21 19:05:08,836 INFO L130 PetriNetUnfolder]: For 1972/1972 co-relation queries the response was YES. [2021-10-21 19:05:08,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3290 conditions, 1388 events. 60/1388 cut-off events. For 1972/1972 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 6863 event pairs, 3 based on Foata normal form. 2/1361 useless extension candidates. Maximal degree in co-relation 2360. Up to 111 conditions per place. [2021-10-21 19:05:08,850 INFO L132 encePairwiseOnDemand]: 153/159 looper letters, 47 selfloop transitions, 12 changer transitions 0/260 dead transitions. [2021-10-21 19:05:08,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 260 transitions, 1618 flow [2021-10-21 19:05:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:05:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 19:05:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2021-10-21 19:05:08,854 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9000698812019566 [2021-10-21 19:05:08,854 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1288 transitions. [2021-10-21 19:05:08,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1288 transitions. [2021-10-21 19:05:08,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:05:08,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1288 transitions. [2021-10-21 19:05:08,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 143.11111111111111) internal successors, (1288), 9 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:08,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:08,861 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:08,861 INFO L186 Difference]: Start difference. First operand has 312 places, 243 transitions, 1399 flow. Second operand 9 states and 1288 transitions. [2021-10-21 19:05:08,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 260 transitions, 1618 flow [2021-10-21 19:05:08,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 260 transitions, 1492 flow, removed 48 selfloop flow, removed 15 redundant places. [2021-10-21 19:05:08,900 INFO L242 Difference]: Finished difference. Result has 308 places, 247 transitions, 1361 flow [2021-10-21 19:05:08,901 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=1275, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1361, PETRI_PLACES=308, PETRI_TRANSITIONS=247} [2021-10-21 19:05:08,901 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 163 predicate places. [2021-10-21 19:05:08,901 INFO L470 AbstractCegarLoop]: Abstraction has has 308 places, 247 transitions, 1361 flow [2021-10-21 19:05:08,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 141.44444444444446) internal successors, (1273), 9 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:08,902 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 19:05:08,903 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:08,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-21 19:05:09,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:09,122 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-21 19:05:09,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:09,123 INFO L82 PathProgramCache]: Analyzing trace with hash 539912100, now seen corresponding path program 1 times [2021-10-21 19:05:09,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:09,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766606213] [2021-10-21 19:05:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:09,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:09,180 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:05:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:09,333 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:05:09,333 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:05:09,334 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:05:09,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-21 19:05:09,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-21 19:05:09,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:05:09,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:05:09,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:05:09,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:05:09,350 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-21 19:05:09,350 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:05:09,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:05:09 BasicIcfg [2021-10-21 19:05:09,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:05:09,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:05:09,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:05:09,559 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:05:09,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:04:49" (3/4) ... [2021-10-21 19:05:09,564 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 19:05:09,705 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:05:09,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:05:09,707 INFO L168 Benchmark]: Toolchain (without parser) took 21895.67 ms. Allocated memory was 90.2 MB in the beginning and 400.6 MB in the end (delta: 310.4 MB). Free memory was 51.7 MB in the beginning and 174.4 MB in the end (delta: -122.7 MB). Peak memory consumption was 187.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:09,708 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 70.0 MB in the beginning and 69.9 MB in the end (delta: 119.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:05:09,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.02 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.6 MB in the beginning and 64.8 MB in the end (delta: -13.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:09,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.23 ms. Allocated memory is still 109.1 MB. Free memory was 64.8 MB in the beginning and 62.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:09,710 INFO L168 Benchmark]: Boogie Preprocessor took 50.39 ms. Allocated memory is still 109.1 MB. Free memory was 62.3 MB in the beginning and 60.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:09,710 INFO L168 Benchmark]: RCFGBuilder took 644.71 ms. Allocated memory is still 109.1 MB. Free memory was 60.2 MB in the beginning and 45.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:09,711 INFO L168 Benchmark]: TraceAbstraction took 20232.68 ms. Allocated memory was 109.1 MB in the beginning and 400.6 MB in the end (delta: 291.5 MB). Free memory was 44.7 MB in the beginning and 213.2 MB in the end (delta: -168.5 MB). Peak memory consumption was 242.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:09,711 INFO L168 Benchmark]: Witness Printer took 146.58 ms. Allocated memory is still 400.6 MB. Free memory was 213.2 MB in the beginning and 174.4 MB in the end (delta: 38.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:09,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 70.0 MB in the beginning and 69.9 MB in the end (delta: 119.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 739.02 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.6 MB in the beginning and 64.8 MB in the end (delta: -13.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.23 ms. Allocated memory is still 109.1 MB. Free memory was 64.8 MB in the beginning and 62.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.39 ms. Allocated memory is still 109.1 MB. Free memory was 62.3 MB in the beginning and 60.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 644.71 ms. Allocated memory is still 109.1 MB. Free memory was 60.2 MB in the beginning and 45.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20232.68 ms. Allocated memory was 109.1 MB in the beginning and 400.6 MB in the end (delta: 291.5 MB). Free memory was 44.7 MB in the beginning and 213.2 MB in the end (delta: -168.5 MB). Peak memory consumption was 242.2 MB. Max. memory is 16.1 GB. * Witness Printer took 146.58 ms. Allocated memory is still 400.6 MB. Free memory was 213.2 MB in the beginning and 174.4 MB in the end (delta: 38.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 941]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L935] 0 static int top=0; VAL [top=0] [L936] 0 static unsigned int arr[(5)]; VAL [arr={13:0}, top=0] [L937] 0 pthread_mutex_t m; VAL [arr={13:0}, m={14:0}, top=0] [L938] 0 _Bool flag=(0); VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L1021] 0 pthread_t id1, id2; VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L1023] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L990] 1 int i; VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L991] 1 unsigned int tmp; VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L992] 1 i=0 VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L992] COND TRUE 1 i<(5) VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L995] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L23] COND FALSE 1 !(!cond) VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L962] COND FALSE 1 !(top==(5)) VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L954] 1 return top; VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L969] 1 stack[get_top()] = x VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L946] 1 top++ VAL [arr={13:0}, flag=0, m={14:0}, top=0] [L946] 1 top++ VAL [arr={13:0}, flag=0, m={14:0}, top=1] [L972] 1 return 0; VAL [arr={13:0}, flag=0, m={14:0}, top=1] [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={13:0}, flag=0, m={14:0}, top=1] [L999] 1 flag=(1) VAL [arr={13:0}, flag=1, m={14:0}, top=1] [L1024] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={13:0}, flag=1, m={14:0}, top=1] [L1006] 2 int i; VAL [arr={13:0}, flag=1, m={14:0}, top=1] [L1007] 2 i=0 VAL [arr={13:0}, flag=1, m={14:0}, top=1] [L1007] COND TRUE 2 i<(5) VAL [arr={13:0}, flag=1, m={14:0}, top=1] [L1010] COND TRUE 2 \read(flag) VAL [arr={13:0}, flag=1, m={14:0}, top=1] [L954] 2 return top; VAL [arr={13:0}, flag=1, m={14:0}, top=1] [L976] COND FALSE 2 !(get_top()==0) VAL [arr={13:0}, flag=1, m={14:0}, top=1] [L950] 2 top-- VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L954] 2 return top; VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L984] EXPR 2 stack[get_top()] VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L984] 2 return stack[get_top()]; VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L1007] 2 i++ VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L1007] COND TRUE 2 i<(5) VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L1010] COND TRUE 2 \read(flag) VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L954] 2 return top; VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L976] COND TRUE 2 get_top()==0 VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L979] 2 return (-2); VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L1012] COND TRUE 2 !(pop(arr)!=(-2)) VAL [arr={13:0}, flag=1, m={14:0}, top=0] [L941] 2 reach_error() VAL [arr={13:0}, flag=1, m={14:0}, top=0] - UnprovableResult [Line: 1023]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1024]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 941]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 248 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 58.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19671.0ms, OverallIterations: 10, TraceHistogramMax: 3, EmptinessCheckTime: 0.0ms, AutomataDifference: 13245.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 147.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 350 SDtfs, 1318 SDslu, 4460 SDs, 0 SdLazy, 5536 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3404.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 398 GetRequests, 235 SyntacticMatches, 2 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1982 ImplicationChecksByTransitivity, 6106.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1399occurred in iteration=8, InterpolantAutomatonStates: 128, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 111.8ms SsaConstructionTime, 512.6ms SatisfiabilityAnalysisTime, 4498.9ms InterpolantComputationTime, 1172 NumberOfCodeBlocks, 1172 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1029 ConstructedInterpolants, 0 QuantifiedInterpolants, 6449 SizeOfPredicates, 6 NumberOfNonLiveVariables, 520 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 18/178 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:05:09,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aad0f430-7e83-455a-ada1-f878259421ef/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...