./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3 --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 4399898620b69de41bd83bea3a83b95b04ccf758 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:49:35,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:49:35,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:49:35,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:49:35,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:49:35,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:49:35,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:49:35,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:49:35,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:49:35,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:49:35,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:49:35,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:49:35,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:49:35,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:49:35,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:49:35,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:49:35,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:49:35,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:49:35,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:49:35,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:49:35,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:49:35,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:49:35,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:49:35,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:49:35,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:49:35,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:49:35,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:49:35,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:49:35,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:49:35,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:49:35,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:49:35,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:49:35,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:49:35,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:49:35,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:49:35,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:49:35,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:49:35,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:49:35,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:49:35,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:49:35,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:49:35,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:49:35,438 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:49:35,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:49:35,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:49:35,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:49:35,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:49:35,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:49:35,443 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:49:35,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:49:35,444 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:49:35,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:49:35,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:49:35,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:49:35,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:49:35,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:49:35,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:49:35,447 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:49:35,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:49:35,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:49:35,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:49:35,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:49:35,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:49:35,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:49:35,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:49:35,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:49:35,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:49:35,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:49:35,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:49:35,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:49:35,451 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:49:35,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:49:35,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:49:35,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:49:35,454 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_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4399898620b69de41bd83bea3a83b95b04ccf758 [2021-10-15 19:49:35,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:49:35,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:49:35,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:49:35,825 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:49:35,826 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:49:35,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2021-10-15 19:49:35,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/data/8280f4e66/05beaf0dc9874e27bf73f6d0880e996c/FLAG0641f81cd [2021-10-15 19:49:36,579 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:49:36,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2021-10-15 19:49:36,594 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/data/8280f4e66/05beaf0dc9874e27bf73f6d0880e996c/FLAG0641f81cd [2021-10-15 19:49:36,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/data/8280f4e66/05beaf0dc9874e27bf73f6d0880e996c [2021-10-15 19:49:36,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:49:36,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:49:36,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:49:36,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:49:36,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:49:36,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:49:36" (1/1) ... [2021-10-15 19:49:36,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d751b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:36, skipping insertion in model container [2021-10-15 19:49:36,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:49:36" (1/1) ... [2021-10-15 19:49:36,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:49:36,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:49:37,303 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_6817f14b-95f5-4849-b65a-f2ce37e5a12c/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c[15980,15993] [2021-10-15 19:49:37,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:49:37,344 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:49:37,453 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_6817f14b-95f5-4849-b65a-f2ce37e5a12c/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c[15980,15993] [2021-10-15 19:49:37,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:49:37,496 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:49:37,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37 WrapperNode [2021-10-15 19:49:37,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:49:37,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:49:37,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:49:37,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:49:37,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (1/1) ... [2021-10-15 19:49:37,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (1/1) ... [2021-10-15 19:49:37,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:49:37,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:49:37,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:49:37,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:49:37,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (1/1) ... [2021-10-15 19:49:37,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (1/1) ... [2021-10-15 19:49:37,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (1/1) ... [2021-10-15 19:49:37,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (1/1) ... [2021-10-15 19:49:37,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (1/1) ... [2021-10-15 19:49:37,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (1/1) ... [2021-10-15 19:49:37,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (1/1) ... [2021-10-15 19:49:37,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:49:37,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:49:37,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:49:37,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:49:37,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (1/1) ... [2021-10-15 19:49:37,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:49:37,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:37,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:49:37,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:49:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:49:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:49:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:49:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:49:38,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:49:38,820 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-10-15 19:49:38,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:49:38 BoogieIcfgContainer [2021-10-15 19:49:38,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:49:38,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:49:38,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:49:38,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:49:38,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:49:36" (1/3) ... [2021-10-15 19:49:38,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee8673c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:49:38, skipping insertion in model container [2021-10-15 19:49:38,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:49:37" (2/3) ... [2021-10-15 19:49:38,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee8673c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:49:38, skipping insertion in model container [2021-10-15 19:49:38,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:49:38" (3/3) ... [2021-10-15 19:49:38,835 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product14.cil.c [2021-10-15 19:49:38,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:49:38,842 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-15 19:49:38,906 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:49:38,915 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, mConcurrency=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 [2021-10-15 19:49:38,915 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-15 19:49:38,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 102 transitions, 204 flow [2021-10-15 19:49:38,972 INFO L129 PetriNetUnfolder]: 34/102 cut-off events. [2021-10-15 19:49:38,972 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:49:38,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 102 events. 34/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 178 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-10-15 19:49:38,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 102 transitions, 204 flow [2021-10-15 19:49:38,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 95 transitions, 190 flow [2021-10-15 19:49:38,991 INFO L129 PetriNetUnfolder]: 17/53 cut-off events. [2021-10-15 19:49:38,992 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:49:38,992 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:38,993 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:38,994 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:39,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:39,001 INFO L82 PathProgramCache]: Analyzing trace with hash -272126327, now seen corresponding path program 1 times [2021-10-15 19:49:39,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:39,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378522955] [2021-10-15 19:49:39,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:39,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:39,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:39,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:39,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378522955] [2021-10-15 19:49:39,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378522955] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:49:39,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:49:39,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:49:39,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652868332] [2021-10-15 19:49:39,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 19:49:39,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:39,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 19:49:39,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:49:39,381 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 102 [2021-10-15 19:49:39,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 95 transitions, 190 flow. Second operand has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:39,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 102 [2021-10-15 19:49:39,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:39,410 INFO L129 PetriNetUnfolder]: 26/90 cut-off events. [2021-10-15 19:49:39,410 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:49:39,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 90 events. 26/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 156 event pairs, 0 based on Foata normal form. 4/66 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2021-10-15 19:49:39,414 INFO L132 encePairwiseOnDemand]: 97/102 looper letters, 0 selfloop transitions, 0 changer transitions 0/90 dead transitions. [2021-10-15 19:49:39,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 90 transitions, 180 flow [2021-10-15 19:49:39,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:49:39,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-15 19:49:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 195 transitions. [2021-10-15 19:49:39,430 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9558823529411765 [2021-10-15 19:49:39,431 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 195 transitions. [2021-10-15 19:49:39,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 195 transitions. [2021-10-15 19:49:39,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:39,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 195 transitions. [2021-10-15 19:49:39,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,450 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,452 INFO L186 Difference]: Start difference. First operand has 65 places, 95 transitions, 190 flow. Second operand 2 states and 195 transitions. [2021-10-15 19:49:39,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 90 transitions, 180 flow [2021-10-15 19:49:39,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 90 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:49:39,462 INFO L242 Difference]: Finished difference. Result has 66 places, 90 transitions, 180 flow [2021-10-15 19:49:39,465 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=180, PETRI_PLACES=66, PETRI_TRANSITIONS=90} [2021-10-15 19:49:39,466 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 1 predicate places. [2021-10-15 19:49:39,467 INFO L470 AbstractCegarLoop]: Abstraction has has 66 places, 90 transitions, 180 flow [2021-10-15 19:49:39,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,468 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:39,468 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:39,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:49:39,469 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:39,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:39,470 INFO L82 PathProgramCache]: Analyzing trace with hash -391180134, now seen corresponding path program 1 times [2021-10-15 19:49:39,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:39,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804228906] [2021-10-15 19:49:39,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:39,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:39,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:39,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804228906] [2021-10-15 19:49:39,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804228906] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:49:39,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:49:39,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:49:39,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467234911] [2021-10-15 19:49:39,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:49:39,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:39,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:49:39,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:49:39,629 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 102 [2021-10-15 19:49:39,630 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 90 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:39,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 102 [2021-10-15 19:49:39,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:39,671 INFO L129 PetriNetUnfolder]: 13/43 cut-off events. [2021-10-15 19:49:39,671 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:49:39,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 43 events. 13/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 45. Up to 4 conditions per place. [2021-10-15 19:49:39,672 INFO L132 encePairwiseOnDemand]: 100/102 looper letters, 1 selfloop transitions, 1 changer transitions 0/43 dead transitions. [2021-10-15 19:49:39,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 43 transitions, 90 flow [2021-10-15 19:49:39,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:49:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:49:39,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2021-10-15 19:49:39,677 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9117647058823529 [2021-10-15 19:49:39,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2021-10-15 19:49:39,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2021-10-15 19:49:39,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:39,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2021-10-15 19:49:39,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,694 INFO L186 Difference]: Start difference. First operand has 66 places, 90 transitions, 180 flow. Second operand 3 states and 279 transitions. [2021-10-15 19:49:39,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 43 transitions, 90 flow [2021-10-15 19:49:39,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 90 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:49:39,699 INFO L242 Difference]: Finished difference. Result has 34 places, 43 transitions, 88 flow [2021-10-15 19:49:39,700 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=34, PETRI_TRANSITIONS=43} [2021-10-15 19:49:39,702 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, -31 predicate places. [2021-10-15 19:49:39,702 INFO L470 AbstractCegarLoop]: Abstraction has has 34 places, 43 transitions, 88 flow [2021-10-15 19:49:39,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,703 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:39,703 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] [2021-10-15 19:49:39,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:49:39,705 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:39,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:39,712 INFO L82 PathProgramCache]: Analyzing trace with hash 914910598, now seen corresponding path program 1 times [2021-10-15 19:49:39,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:39,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980357527] [2021-10-15 19:49:39,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:39,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:39,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:39,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:39,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980357527] [2021-10-15 19:49:39,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980357527] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:49:39,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:49:39,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:49:39,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492584596] [2021-10-15 19:49:39,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:49:39,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:39,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:49:39,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:49:39,940 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 102 [2021-10-15 19:49:39,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 43 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:39,944 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:39,944 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 102 [2021-10-15 19:49:39,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:40,006 INFO L129 PetriNetUnfolder]: 12/42 cut-off events. [2021-10-15 19:49:40,006 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:49:40,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 42 events. 12/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2021-10-15 19:49:40,008 INFO L132 encePairwiseOnDemand]: 98/102 looper letters, 4 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2021-10-15 19:49:40,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 100 flow [2021-10-15 19:49:40,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:49:40,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-15 19:49:40,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 418 transitions. [2021-10-15 19:49:40,014 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8196078431372549 [2021-10-15 19:49:40,014 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 418 transitions. [2021-10-15 19:49:40,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 418 transitions. [2021-10-15 19:49:40,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:40,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 418 transitions. [2021-10-15 19:49:40,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,036 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,036 INFO L186 Difference]: Start difference. First operand has 34 places, 43 transitions, 88 flow. Second operand 5 states and 418 transitions. [2021-10-15 19:49:40,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 100 flow [2021-10-15 19:49:40,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 99 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-15 19:49:40,040 INFO L242 Difference]: Finished difference. Result has 37 places, 42 transitions, 91 flow [2021-10-15 19:49:40,041 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=91, PETRI_PLACES=37, PETRI_TRANSITIONS=42} [2021-10-15 19:49:40,042 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, -28 predicate places. [2021-10-15 19:49:40,042 INFO L470 AbstractCegarLoop]: Abstraction has has 37 places, 42 transitions, 91 flow [2021-10-15 19:49:40,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,043 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:40,043 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] [2021-10-15 19:49:40,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 19:49:40,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:40,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:40,048 INFO L82 PathProgramCache]: Analyzing trace with hash 927653314, now seen corresponding path program 1 times [2021-10-15 19:49:40,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:40,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669410556] [2021-10-15 19:49:40,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:40,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:40,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:40,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669410556] [2021-10-15 19:49:40,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669410556] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:49:40,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:49:40,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:49:40,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322116237] [2021-10-15 19:49:40,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:49:40,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:40,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:49:40,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:49:40,239 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 102 [2021-10-15 19:49:40,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 42 transitions, 91 flow. Second operand has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,242 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:40,242 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 102 [2021-10-15 19:49:40,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:40,400 INFO L129 PetriNetUnfolder]: 36/120 cut-off events. [2021-10-15 19:49:40,400 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:49:40,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 120 events. 36/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 203 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 144. Up to 12 conditions per place. [2021-10-15 19:49:40,402 INFO L132 encePairwiseOnDemand]: 94/102 looper letters, 11 selfloop transitions, 9 changer transitions 0/53 dead transitions. [2021-10-15 19:49:40,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 53 transitions, 153 flow [2021-10-15 19:49:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:49:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-15 19:49:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 469 transitions. [2021-10-15 19:49:40,407 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7663398692810458 [2021-10-15 19:49:40,407 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 469 transitions. [2021-10-15 19:49:40,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 469 transitions. [2021-10-15 19:49:40,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:40,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 469 transitions. [2021-10-15 19:49:40,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.16666666666667) internal successors, (469), 6 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,415 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,415 INFO L186 Difference]: Start difference. First operand has 37 places, 42 transitions, 91 flow. Second operand 6 states and 469 transitions. [2021-10-15 19:49:40,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 53 transitions, 153 flow [2021-10-15 19:49:40,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 53 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-15 19:49:40,423 INFO L242 Difference]: Finished difference. Result has 42 places, 50 transitions, 151 flow [2021-10-15 19:49:40,423 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=151, PETRI_PLACES=42, PETRI_TRANSITIONS=50} [2021-10-15 19:49:40,423 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, -23 predicate places. [2021-10-15 19:49:40,424 INFO L470 AbstractCegarLoop]: Abstraction has has 42 places, 50 transitions, 151 flow [2021-10-15 19:49:40,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,425 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:40,425 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] [2021-10-15 19:49:40,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-15 19:49:40,426 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:40,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:40,427 INFO L82 PathProgramCache]: Analyzing trace with hash -951478396, now seen corresponding path program 1 times [2021-10-15 19:49:40,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:40,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792832352] [2021-10-15 19:49:40,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:40,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:40,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:40,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:40,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792832352] [2021-10-15 19:49:40,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792832352] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:49:40,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:49:40,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:49:40,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773669584] [2021-10-15 19:49:40,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:49:40,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:40,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:49:40,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:49:40,574 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 102 [2021-10-15 19:49:40,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 50 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:40,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 102 [2021-10-15 19:49:40,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:40,636 INFO L129 PetriNetUnfolder]: 35/133 cut-off events. [2021-10-15 19:49:40,636 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-10-15 19:49:40,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 133 events. 35/133 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 207 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 186. Up to 18 conditions per place. [2021-10-15 19:49:40,637 INFO L132 encePairwiseOnDemand]: 95/102 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2021-10-15 19:49:40,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 167 flow [2021-10-15 19:49:40,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:49:40,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-15 19:49:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 341 transitions. [2021-10-15 19:49:40,640 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6686274509803921 [2021-10-15 19:49:40,641 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 341 transitions. [2021-10-15 19:49:40,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 341 transitions. [2021-10-15 19:49:40,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:40,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 341 transitions. [2021-10-15 19:49:40,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,646 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,647 INFO L186 Difference]: Start difference. First operand has 42 places, 50 transitions, 151 flow. Second operand 5 states and 341 transitions. [2021-10-15 19:49:40,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 167 flow [2021-10-15 19:49:40,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 167 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:49:40,650 INFO L242 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-10-15 19:49:40,650 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-10-15 19:49:40,650 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, -25 predicate places. [2021-10-15 19:49:40,650 INFO L470 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2021-10-15 19:49:40,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:40,658 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:49:40,659 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:49:40,659 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:49:40,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-15 19:49:40,667 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:49:40,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:49:40 BoogieIcfgContainer [2021-10-15 19:49:40,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:49:40,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:49:40,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:49:40,676 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:49:40,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:49:38" (3/4) ... [2021-10-15 19:49:40,680 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:49:40,708 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-15 19:49:40,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-15 19:49:40,710 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-15 19:49:40,711 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-15 19:49:40,711 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-15 19:49:40,712 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:49:40,713 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:49:40,827 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:49:40,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:49:40,830 INFO L168 Benchmark]: Toolchain (without parser) took 4026.60 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.6 MB in the beginning and 77.4 MB in the end (delta: -27.9 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:49:40,830 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 67.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:49:40,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.22 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.4 MB in the beginning and 73.3 MB in the end (delta: -23.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:49:40,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.54 ms. Allocated memory is still 104.9 MB. Free memory was 73.3 MB in the beginning and 70.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:49:40,832 INFO L168 Benchmark]: Boogie Preprocessor took 60.74 ms. Allocated memory is still 104.9 MB. Free memory was 70.6 MB in the beginning and 68.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:49:40,832 INFO L168 Benchmark]: RCFGBuilder took 1146.94 ms. Allocated memory is still 104.9 MB. Free memory was 68.5 MB in the beginning and 77.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:49:40,833 INFO L168 Benchmark]: TraceAbstraction took 1848.71 ms. Allocated memory is still 104.9 MB. Free memory was 76.7 MB in the beginning and 37.5 MB in the end (delta: 39.2 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-15 19:49:40,833 INFO L168 Benchmark]: Witness Printer took 152.51 ms. Allocated memory is still 104.9 MB. Free memory was 37.5 MB in the beginning and 77.4 MB in the end (delta: -40.0 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:49:40,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 67.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 694.22 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.4 MB in the beginning and 73.3 MB in the end (delta: -23.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.54 ms. Allocated memory is still 104.9 MB. Free memory was 73.3 MB in the beginning and 70.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.74 ms. Allocated memory is still 104.9 MB. Free memory was 70.6 MB in the beginning and 68.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1146.94 ms. Allocated memory is still 104.9 MB. Free memory was 68.5 MB in the beginning and 77.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1848.71 ms. Allocated memory is still 104.9 MB. Free memory was 76.7 MB in the beginning and 37.5 MB in the end (delta: 39.2 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * Witness Printer took 152.51 ms. Allocated memory is still 104.9 MB. Free memory was 37.5 MB in the beginning and 77.4 MB in the end (delta: -40.0 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 777]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 777]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 777]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 69 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1764.5ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 543.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 67.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13 SDtfs, 37 SDslu, 18 SDs, 0 SdLazy, 52 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 114.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 128.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=0, InterpolantAutomatonStates: 21, 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: 41.9ms SsaConstructionTime, 319.7ms SatisfiabilityAnalysisTime, 572.1ms InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 19:49:40,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6817f14b-95f5-4849-b65a-f2ce37e5a12c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...