./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.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_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/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_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/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_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/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 0cd3e1193080337d9990aee95f4c8872cfde4085 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:22:04,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:22:04,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:22:04,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:22:04,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:22:04,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:22:04,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:22:04,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:22:04,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:22:04,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:22:04,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:22:04,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:22:04,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:22:04,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:22:04,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:22:04,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:22:04,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:22:04,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:22:04,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:22:04,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:22:04,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:22:04,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:22:04,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:22:04,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:22:04,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:22:04,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:22:04,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:22:04,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:22:04,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:22:04,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:22:04,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:22:04,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:22:04,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:22:04,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:22:04,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:22:04,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:22:04,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:22:04,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:22:04,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:22:04,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:22:04,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:22:04,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:22:04,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:22:04,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:22:04,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:22:04,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:22:04,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:22:04,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:22:04,900 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:22:04,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:22:04,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:22:04,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:22:04,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:22:04,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:22:04,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:22:04,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:22:04,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:22:04,904 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:22:04,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:22:04,904 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:22:04,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:22:04,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:22:04,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:22:04,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:22:04,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:22:04,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:22:04,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:22:04,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:22:04,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:22:04,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:22:04,907 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:22:04,909 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:22:04,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:22:04,910 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:22:04,910 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_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cd3e1193080337d9990aee95f4c8872cfde4085 [2021-10-15 19:22:05,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:22:05,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:22:05,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:22:05,310 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:22:05,311 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:22:05,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2021-10-15 19:22:05,400 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/data/89b097f53/80cf376e89454a8a9ecb79f90652e806/FLAGa5dee1db1 [2021-10-15 19:22:06,143 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:22:06,153 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2021-10-15 19:22:06,180 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/data/89b097f53/80cf376e89454a8a9ecb79f90652e806/FLAGa5dee1db1 [2021-10-15 19:22:06,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/data/89b097f53/80cf376e89454a8a9ecb79f90652e806 [2021-10-15 19:22:06,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:22:06,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:22:06,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:22:06,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:22:06,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:22:06,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:06,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eb22e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06, skipping insertion in model container [2021-10-15 19:22:06,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:06,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:22:06,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:22:06,844 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_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c[14834,14847] [2021-10-15 19:22:06,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:22:06,878 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:22:06,955 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_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c[14834,14847] [2021-10-15 19:22:06,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:22:06,991 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:22:06,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06 WrapperNode [2021-10-15 19:22:06,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:22:06,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:22:06,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:22:06,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:22:07,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:07,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:07,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:22:07,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:22:07,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:22:07,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:22:07,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:07,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:07,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:07,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:07,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:07,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:07,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:07,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:22:07,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:22:07,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:22:07,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:22:07,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (1/1) ... [2021-10-15 19:22:07,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:22:07,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:22:07,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:22:07,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:22:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:22:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:22:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:22:07,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:22:08,510 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:22:08,510 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-10-15 19:22:08,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:22:08 BoogieIcfgContainer [2021-10-15 19:22:08,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:22:08,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:22:08,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:22:08,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:22:08,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:22:06" (1/3) ... [2021-10-15 19:22:08,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256ebb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:22:08, skipping insertion in model container [2021-10-15 19:22:08,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:22:06" (2/3) ... [2021-10-15 19:22:08,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256ebb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:22:08, skipping insertion in model container [2021-10-15 19:22:08,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:22:08" (3/3) ... [2021-10-15 19:22:08,527 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2021-10-15 19:22:08,534 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:22:08,534 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-15 19:22:08,608 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:22:08,618 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 19:22:08,619 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-15 19:22:08,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 114 transitions, 228 flow [2021-10-15 19:22:08,705 INFO L129 PetriNetUnfolder]: 38/114 cut-off events. [2021-10-15 19:22:08,706 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:22:08,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 114 events. 38/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 238 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-10-15 19:22:08,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 114 transitions, 228 flow [2021-10-15 19:22:08,719 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 107 transitions, 214 flow [2021-10-15 19:22:08,736 INFO L129 PetriNetUnfolder]: 18/57 cut-off events. [2021-10-15 19:22:08,736 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:22:08,737 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:22:08,738 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:22:08,738 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 19:22:08,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:22:08,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1193442992, now seen corresponding path program 1 times [2021-10-15 19:22:08,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:22:08,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598251875] [2021-10-15 19:22:08,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:22:08,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:22:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:22:09,117 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 19:22:09,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:22:09,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598251875] [2021-10-15 19:22:09,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598251875] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:22:09,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:22:09,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:22:09,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731583903] [2021-10-15 19:22:09,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 19:22:09,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:22:09,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 19:22:09,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:22:09,145 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 114 [2021-10-15 19:22:09,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 107 transitions, 214 flow. Second operand has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 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 19:22:09,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:22:09,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 114 [2021-10-15 19:22:09,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:22:09,172 INFO L129 PetriNetUnfolder]: 30/102 cut-off events. [2021-10-15 19:22:09,172 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:22:09,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 102 events. 30/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 206 event pairs, 0 based on Foata normal form. 4/74 useless extension candidates. Maximal degree in co-relation 102. Up to 4 conditions per place. [2021-10-15 19:22:09,176 INFO L132 encePairwiseOnDemand]: 109/114 looper letters, 0 selfloop transitions, 0 changer transitions 0/102 dead transitions. [2021-10-15 19:22:09,176 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 102 transitions, 204 flow [2021-10-15 19:22:09,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:22:09,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-15 19:22:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 219 transitions. [2021-10-15 19:22:09,192 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9605263157894737 [2021-10-15 19:22:09,193 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 219 transitions. [2021-10-15 19:22:09,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 219 transitions. [2021-10-15 19:22:09,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:22:09,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 219 transitions. [2021-10-15 19:22:09,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 109.5) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 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 19:22:09,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 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 19:22:09,210 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 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 19:22:09,212 INFO L186 Difference]: Start difference. First operand has 73 places, 107 transitions, 214 flow. Second operand 2 states and 219 transitions. [2021-10-15 19:22:09,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 102 transitions, 204 flow [2021-10-15 19:22:09,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 102 transitions, 204 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:22:09,222 INFO L242 Difference]: Finished difference. Result has 74 places, 102 transitions, 204 flow [2021-10-15 19:22:09,224 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=204, PETRI_PLACES=74, PETRI_TRANSITIONS=102} [2021-10-15 19:22:09,225 INFO L334 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2021-10-15 19:22:09,226 INFO L470 AbstractCegarLoop]: Abstraction has has 74 places, 102 transitions, 204 flow [2021-10-15 19:22:09,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 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 19:22:09,226 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:22:09,227 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 19:22:09,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:22:09,227 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 19:22:09,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:22:09,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1635205776, now seen corresponding path program 1 times [2021-10-15 19:22:09,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:22:09,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64186983] [2021-10-15 19:22:09,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:22:09,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:22:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:22:09,352 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 19:22:09,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:22:09,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64186983] [2021-10-15 19:22:09,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64186983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:22:09,353 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:22:09,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:22:09,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438210528] [2021-10-15 19:22:09,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:22:09,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:22:09,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:22:09,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:22:09,359 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 114 [2021-10-15 19:22:09,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 102 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 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 19:22:09,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:22:09,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 114 [2021-10-15 19:22:09,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:22:09,373 INFO L129 PetriNetUnfolder]: 15/49 cut-off events. [2021-10-15 19:22:09,373 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:22:09,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 49 events. 15/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 51. Up to 4 conditions per place. [2021-10-15 19:22:09,375 INFO L132 encePairwiseOnDemand]: 112/114 looper letters, 1 selfloop transitions, 1 changer transitions 0/49 dead transitions. [2021-10-15 19:22:09,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 49 transitions, 102 flow [2021-10-15 19:22:09,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:22:09,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:22:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2021-10-15 19:22:09,380 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9210526315789473 [2021-10-15 19:22:09,380 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 315 transitions. [2021-10-15 19:22:09,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 315 transitions. [2021-10-15 19:22:09,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:22:09,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 315 transitions. [2021-10-15 19:22:09,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 19:22:09,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 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 19:22:09,388 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 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 19:22:09,388 INFO L186 Difference]: Start difference. First operand has 74 places, 102 transitions, 204 flow. Second operand 3 states and 315 transitions. [2021-10-15 19:22:09,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 49 transitions, 102 flow [2021-10-15 19:22:09,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 49 transitions, 102 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:22:09,399 INFO L242 Difference]: Finished difference. Result has 38 places, 49 transitions, 100 flow [2021-10-15 19:22:09,401 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=49} [2021-10-15 19:22:09,406 INFO L334 CegarLoopForPetriNet]: 73 programPoint places, -35 predicate places. [2021-10-15 19:22:09,406 INFO L470 AbstractCegarLoop]: Abstraction has has 38 places, 49 transitions, 100 flow [2021-10-15 19:22:09,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 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 19:22:09,407 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:22:09,407 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 19:22:09,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:22:09,408 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 19:22:09,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:22:09,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1451070739, now seen corresponding path program 1 times [2021-10-15 19:22:09,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:22:09,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897328091] [2021-10-15 19:22:09,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:22:09,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:22:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:22:09,583 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 19:22:09,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:22:09,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897328091] [2021-10-15 19:22:09,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897328091] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:22:09,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:22:09,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:22:09,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555635391] [2021-10-15 19:22:09,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-15 19:22:09,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:22:09,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 19:22:09,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:22:09,597 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 114 [2021-10-15 19:22:09,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 49 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 0 states have call successors, (0), 0 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 19:22:09,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:22:09,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 114 [2021-10-15 19:22:09,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:22:09,910 INFO L129 PetriNetUnfolder]: 38/124 cut-off events. [2021-10-15 19:22:09,910 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:22:09,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 124 events. 38/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 242 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 137. Up to 9 conditions per place. [2021-10-15 19:22:09,914 INFO L132 encePairwiseOnDemand]: 108/114 looper letters, 6 selfloop transitions, 6 changer transitions 0/53 dead transitions. [2021-10-15 19:22:09,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 132 flow [2021-10-15 19:22:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:22:09,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-15 19:22:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 578 transitions. [2021-10-15 19:22:09,926 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8450292397660819 [2021-10-15 19:22:09,927 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 578 transitions. [2021-10-15 19:22:09,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 578 transitions. [2021-10-15 19:22:09,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:22:09,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 578 transitions. [2021-10-15 19:22:09,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.33333333333333) internal successors, (578), 6 states have internal predecessors, (578), 0 states have call successors, (0), 0 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 19:22:09,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 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 19:22:09,940 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 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 19:22:09,941 INFO L186 Difference]: Start difference. First operand has 38 places, 49 transitions, 100 flow. Second operand 6 states and 578 transitions. [2021-10-15 19:22:09,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 132 flow [2021-10-15 19:22:09,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 53 transitions, 131 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-15 19:22:09,946 INFO L242 Difference]: Finished difference. Result has 45 places, 52 transitions, 133 flow [2021-10-15 19:22:09,947 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=133, PETRI_PLACES=45, PETRI_TRANSITIONS=52} [2021-10-15 19:22:09,947 INFO L334 CegarLoopForPetriNet]: 73 programPoint places, -28 predicate places. [2021-10-15 19:22:09,947 INFO L470 AbstractCegarLoop]: Abstraction has has 45 places, 52 transitions, 133 flow [2021-10-15 19:22:09,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 0 states have call successors, (0), 0 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 19:22:09,949 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:22:09,949 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 19:22:09,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 19:22:09,950 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 19:22:09,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:22:09,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1281905457, now seen corresponding path program 1 times [2021-10-15 19:22:09,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:22:09,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567252667] [2021-10-15 19:22:09,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:22:09,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:22:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:22:10,194 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 19:22:10,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:22:10,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567252667] [2021-10-15 19:22:10,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567252667] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:22:10,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:22:10,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-15 19:22:10,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789122602] [2021-10-15 19:22:10,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-15 19:22:10,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:22:10,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-15 19:22:10,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-15 19:22:10,207 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 114 [2021-10-15 19:22:10,209 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 52 transitions, 133 flow. Second operand has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 0 states have call successors, (0), 0 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 19:22:10,209 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:22:10,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 114 [2021-10-15 19:22:10,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:22:10,742 INFO L129 PetriNetUnfolder]: 233/698 cut-off events. [2021-10-15 19:22:10,742 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2021-10-15 19:22:10,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 698 events. 233/698 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3780 event pairs, 0 based on Foata normal form. 0/487 useless extension candidates. Maximal degree in co-relation 916. Up to 66 conditions per place. [2021-10-15 19:22:10,748 INFO L132 encePairwiseOnDemand]: 103/114 looper letters, 27 selfloop transitions, 23 changer transitions 0/88 dead transitions. [2021-10-15 19:22:10,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 88 transitions, 305 flow [2021-10-15 19:22:10,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-15 19:22:10,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-15 19:22:10,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1070 transitions. [2021-10-15 19:22:10,754 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7219973009446694 [2021-10-15 19:22:10,754 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1070 transitions. [2021-10-15 19:22:10,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1070 transitions. [2021-10-15 19:22:10,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:22:10,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1070 transitions. [2021-10-15 19:22:10,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 82.3076923076923) internal successors, (1070), 13 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:22:10,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 114.0) internal successors, (1596), 14 states have internal predecessors, (1596), 0 states have call successors, (0), 0 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 19:22:10,767 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 114.0) internal successors, (1596), 14 states have internal predecessors, (1596), 0 states have call successors, (0), 0 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 19:22:10,768 INFO L186 Difference]: Start difference. First operand has 45 places, 52 transitions, 133 flow. Second operand 13 states and 1070 transitions. [2021-10-15 19:22:10,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 88 transitions, 305 flow [2021-10-15 19:22:10,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 88 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-15 19:22:10,773 INFO L242 Difference]: Finished difference. Result has 59 places, 75 transitions, 267 flow [2021-10-15 19:22:10,774 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=267, PETRI_PLACES=59, PETRI_TRANSITIONS=75} [2021-10-15 19:22:10,774 INFO L334 CegarLoopForPetriNet]: 73 programPoint places, -14 predicate places. [2021-10-15 19:22:10,774 INFO L470 AbstractCegarLoop]: Abstraction has has 59 places, 75 transitions, 267 flow [2021-10-15 19:22:10,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 0 states have call successors, (0), 0 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 19:22:10,775 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:22:10,775 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 19:22:10,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-15 19:22:10,776 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 19:22:10,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:22:10,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1402731609, now seen corresponding path program 1 times [2021-10-15 19:22:10,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:22:10,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384272317] [2021-10-15 19:22:10,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:22:10,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:22:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:22:10,833 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 19:22:10,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:22:10,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384272317] [2021-10-15 19:22:10,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384272317] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:22:10,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:22:10,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:22:10,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978801250] [2021-10-15 19:22:10,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:22:10,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:22:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:22:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:22:10,837 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 114 [2021-10-15 19:22:10,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 75 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 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 19:22:10,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:22:10,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 114 [2021-10-15 19:22:10,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:22:10,918 INFO L129 PetriNetUnfolder]: 122/484 cut-off events. [2021-10-15 19:22:10,919 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-10-15 19:22:10,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 484 events. 122/484 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2165 event pairs, 0 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 732. Up to 66 conditions per place. [2021-10-15 19:22:10,923 INFO L132 encePairwiseOnDemand]: 110/114 looper letters, 4 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2021-10-15 19:22:10,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 56 transitions, 214 flow [2021-10-15 19:22:10,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:22:10,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:22:10,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2021-10-15 19:22:10,926 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2021-10-15 19:22:10,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2021-10-15 19:22:10,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2021-10-15 19:22:10,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:22:10,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2021-10-15 19:22:10,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 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 19:22:10,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 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 19:22:10,929 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 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 19:22:10,930 INFO L186 Difference]: Start difference. First operand has 59 places, 75 transitions, 267 flow. Second operand 3 states and 266 transitions. [2021-10-15 19:22:10,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 56 transitions, 214 flow [2021-10-15 19:22:10,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 56 transitions, 207 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-15 19:22:10,940 INFO L242 Difference]: Finished difference. Result has 52 places, 56 transitions, 199 flow [2021-10-15 19:22:10,940 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=52, PETRI_TRANSITIONS=56} [2021-10-15 19:22:10,941 INFO L334 CegarLoopForPetriNet]: 73 programPoint places, -21 predicate places. [2021-10-15 19:22:10,941 INFO L470 AbstractCegarLoop]: Abstraction has has 52 places, 56 transitions, 199 flow [2021-10-15 19:22:10,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 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 19:22:10,942 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:22:10,942 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] [2021-10-15 19:22:10,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-15 19:22:10,942 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:22:10,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:22:10,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1852777620, now seen corresponding path program 1 times [2021-10-15 19:22:10,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:22:10,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009104174] [2021-10-15 19:22:10,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:22:10,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:22:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:22:11,050 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:22:11,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:22:11,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009104174] [2021-10-15 19:22:11,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009104174] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:22:11,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567933142] [2021-10-15 19:22:11,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:22:11,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:22:11,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:22:11,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:22:11,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-15 19:22:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:22:11,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-15 19:22:11,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:22:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:22:11,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567933142] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:22:11,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-15 19:22:11,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-15 19:22:11,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565418149] [2021-10-15 19:22:11,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:22:11,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:22:11,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:22:11,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:22:11,529 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 114 [2021-10-15 19:22:11,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 56 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 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 19:22:11,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:22:11,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 114 [2021-10-15 19:22:11,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:22:11,661 INFO L129 PetriNetUnfolder]: 44/200 cut-off events. [2021-10-15 19:22:11,662 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2021-10-15 19:22:11,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 200 events. 44/200 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 716 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 302. Up to 24 conditions per place. [2021-10-15 19:22:11,665 INFO L132 encePairwiseOnDemand]: 112/114 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2021-10-15 19:22:11,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 40 transitions, 152 flow [2021-10-15 19:22:11,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:22:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-15 19:22:11,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2021-10-15 19:22:11,668 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8201754385964912 [2021-10-15 19:22:11,669 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2021-10-15 19:22:11,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2021-10-15 19:22:11,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:22:11,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2021-10-15 19:22:11,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 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 19:22:11,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 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 19:22:11,674 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 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 19:22:11,674 INFO L186 Difference]: Start difference. First operand has 52 places, 56 transitions, 199 flow. Second operand 4 states and 374 transitions. [2021-10-15 19:22:11,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 40 transitions, 152 flow [2021-10-15 19:22:11,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 135 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-10-15 19:22:11,679 INFO L242 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2021-10-15 19:22:11,680 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2021-10-15 19:22:11,680 INFO L334 CegarLoopForPetriNet]: 73 programPoint places, -31 predicate places. [2021-10-15 19:22:11,680 INFO L470 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2021-10-15 19:22:11,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 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 19:22:11,684 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:22:11,685 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:22:11,685 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:22:11,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:22:11,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:22:11,915 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:22:11,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:22:11 BoogieIcfgContainer [2021-10-15 19:22:11,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:22:11,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:22:11,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:22:11,921 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:22:11,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:22:08" (3/4) ... [2021-10-15 19:22:11,925 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:22:11,943 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-15 19:22:11,944 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-15 19:22:11,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-15 19:22:11,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-15 19:22:11,946 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-15 19:22:11,947 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:22:11,948 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:22:12,036 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:22:12,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:22:12,039 INFO L168 Benchmark]: Toolchain (without parser) took 5652.84 ms. Allocated memory was 123.7 MB in the beginning and 153.1 MB in the end (delta: 29.4 MB). Free memory was 83.6 MB in the beginning and 85.3 MB in the end (delta: -1.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:12,039 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 123.7 MB. Free memory was 100.7 MB in the beginning and 100.6 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:22:12,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.89 ms. Allocated memory is still 123.7 MB. Free memory was 83.3 MB in the beginning and 91.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:12,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.13 ms. Allocated memory is still 123.7 MB. Free memory was 91.1 MB in the beginning and 88.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:12,041 INFO L168 Benchmark]: Boogie Preprocessor took 79.66 ms. Allocated memory is still 123.7 MB. Free memory was 88.1 MB in the beginning and 86.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:12,042 INFO L168 Benchmark]: RCFGBuilder took 1329.38 ms. Allocated memory is still 123.7 MB. Free memory was 85.6 MB in the beginning and 95.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:12,042 INFO L168 Benchmark]: TraceAbstraction took 3404.66 ms. Allocated memory was 123.7 MB in the beginning and 153.1 MB in the end (delta: 29.4 MB). Free memory was 95.2 MB in the beginning and 91.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:12,043 INFO L168 Benchmark]: Witness Printer took 116.31 ms. Allocated memory is still 153.1 MB. Free memory was 91.4 MB in the beginning and 85.3 MB in the end (delta: 6.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:12,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 123.7 MB. Free memory was 100.7 MB in the beginning and 100.6 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 597.89 ms. Allocated memory is still 123.7 MB. Free memory was 83.3 MB in the beginning and 91.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.13 ms. Allocated memory is still 123.7 MB. Free memory was 91.1 MB in the beginning and 88.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.66 ms. Allocated memory is still 123.7 MB. Free memory was 88.1 MB in the beginning and 86.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1329.38 ms. Allocated memory is still 123.7 MB. Free memory was 85.6 MB in the beginning and 95.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3404.66 ms. Allocated memory was 123.7 MB in the beginning and 153.1 MB in the end (delta: 29.4 MB). Free memory was 95.2 MB in the beginning and 91.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * Witness Printer took 116.31 ms. Allocated memory is still 153.1 MB. Free memory was 91.4 MB in the beginning and 85.3 MB in the end (delta: 6.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms 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: 690]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 690]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 690]: 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, 77 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3311.7ms, OverallIterations: 6, TraceHistogramMax: 2, EmptinessCheckTime: 0.0ms, AutomataDifference: 1327.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 100.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 71 SDslu, 23 SDs, 0 SdLazy, 120 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 570.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 258.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred in iteration=4, InterpolantAutomatonStates: 31, 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: 80.9ms SsaConstructionTime, 469.7ms SatisfiabilityAnalysisTime, 770.0ms InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 399 SizeOfPredicates, 0 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 25/30 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 19:22:12,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6ec8d5-415a-4faf-b3b2-40e4a2697577/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...