./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg --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 faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:41:40,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:41:40,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:41:40,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:41:40,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:41:40,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:41:40,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:41:40,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:41:40,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:41:40,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:41:40,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:41:40,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:41:40,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:41:40,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:41:40,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:41:40,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:41:40,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:41:40,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:41:40,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:41:40,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:41:41,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:41:41,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:41:41,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:41:41,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:41:41,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:41:41,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:41:41,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:41:41,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:41:41,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:41:41,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:41:41,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:41:41,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:41:41,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:41:41,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:41:41,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:41:41,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:41:41,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:41:41,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:41:41,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:41:41,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:41:41,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:41:41,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:41:41,067 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:41:41,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:41:41,071 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:41:41,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:41:41,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:41:41,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:41:41,080 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:41:41,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:41:41,081 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:41:41,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:41:41,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:41:41,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:41:41,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:41:41,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:41:41,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:41:41,083 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:41:41,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:41:41,083 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:41:41,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:41:41,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:41:41,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:41:41,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:41:41,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:41:41,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:41:41,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:41:41,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:41:41,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:41:41,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:41:41,086 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:41:41,086 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:41:41,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:41:41,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:41:41,087 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_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb [2021-10-28 09:41:41,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:41:41,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:41:41,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:41:41,373 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:41:41,374 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:41:41,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2021-10-28 09:41:41,445 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/data/2dd6412c7/4c3ba6db166c4e5e88a4d71cdfb0ad6c/FLAG208166b79 [2021-10-28 09:41:41,946 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:41:41,947 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2021-10-28 09:41:41,959 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/data/2dd6412c7/4c3ba6db166c4e5e88a4d71cdfb0ad6c/FLAG208166b79 [2021-10-28 09:41:42,268 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/data/2dd6412c7/4c3ba6db166c4e5e88a4d71cdfb0ad6c [2021-10-28 09:41:42,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:41:42,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:41:42,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:41:42,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:41:42,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:41:42,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:42,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495fd302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42, skipping insertion in model container [2021-10-28 09:41:42,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:42,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:41:42,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:41:42,672 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_7c8beeee-3a78-4162-a35f-475aee69ea48/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c[5087,5100] [2021-10-28 09:41:42,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:41:42,810 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:41:42,850 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_7c8beeee-3a78-4162-a35f-475aee69ea48/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c[5087,5100] [2021-10-28 09:41:42,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:41:42,956 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:41:42,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42 WrapperNode [2021-10-28 09:41:42,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:41:42,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:41:42,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:41:42,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:41:42,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:42,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:43,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:41:43,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:41:43,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:41:43,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:41:43,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:43,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:43,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:43,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:43,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:43,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:43,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:43,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:41:43,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:41:43,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:41:43,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:41:43,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (1/1) ... [2021-10-28 09:41:43,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:41:43,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:43,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:41:43,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:41:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:41:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:41:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:41:43,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:41:44,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:41:44,296 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-28 09:41:44,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:44 BoogieIcfgContainer [2021-10-28 09:41:44,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:41:44,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:41:44,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:41:44,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:41:44,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:41:42" (1/3) ... [2021-10-28 09:41:44,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322b6685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:41:44, skipping insertion in model container [2021-10-28 09:41:44,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:41:42" (2/3) ... [2021-10-28 09:41:44,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322b6685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:41:44, skipping insertion in model container [2021-10-28 09:41:44,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:44" (3/3) ... [2021-10-28 09:41:44,323 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2021-10-28 09:41:44,328 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:41:44,328 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 09:41:44,399 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:41:44,419 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:41:44,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 09:41:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 113 states have (on average 1.575221238938053) internal successors, (178), 116 states have internal predecessors, (178), 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) [2021-10-28 09:41:44,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 09:41:44,478 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:44,478 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:44,479 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:44,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1255950434, now seen corresponding path program 1 times [2021-10-28 09:41:44,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:44,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547264424] [2021-10-28 09:41:44,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:44,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:44,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:44,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:44,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547264424] [2021-10-28 09:41:44,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547264424] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:44,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:44,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:44,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160128970] [2021-10-28 09:41:44,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:41:44,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:44,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:41:44,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:41:44,850 INFO L87 Difference]: Start difference. First operand has 117 states, 113 states have (on average 1.575221238938053) internal successors, (178), 116 states have internal predecessors, (178), 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) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-28 09:41:44,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:44,909 INFO L93 Difference]: Finished difference Result 227 states and 348 transitions. [2021-10-28 09:41:44,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:41:44,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) Word has length 18 [2021-10-28 09:41:44,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:44,923 INFO L225 Difference]: With dead ends: 227 [2021-10-28 09:41:44,924 INFO L226 Difference]: Without dead ends: 113 [2021-10-28 09:41:44,928 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:41:44,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-28 09:41:44,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-28 09:41:44,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.509090909090909) internal successors, (166), 112 states have internal predecessors, (166), 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) [2021-10-28 09:41:44,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 166 transitions. [2021-10-28 09:41:44,992 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 166 transitions. Word has length 18 [2021-10-28 09:41:44,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:44,993 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 166 transitions. [2021-10-28 09:41:44,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-28 09:41:44,994 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 166 transitions. [2021-10-28 09:41:44,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:41:44,998 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:44,998 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:44,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:41:44,999 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:45,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:45,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1139511005, now seen corresponding path program 1 times [2021-10-28 09:41:45,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:45,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725212344] [2021-10-28 09:41:45,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:45,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:45,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:45,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:45,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725212344] [2021-10-28 09:41:45,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725212344] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:45,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:45,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:45,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242080833] [2021-10-28 09:41:45,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:45,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:45,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:45,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:45,173 INFO L87 Difference]: Start difference. First operand 113 states and 166 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 09:41:45,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:45,204 INFO L93 Difference]: Finished difference Result 113 states and 166 transitions. [2021-10-28 09:41:45,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:45,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) Word has length 19 [2021-10-28 09:41:45,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:45,206 INFO L225 Difference]: With dead ends: 113 [2021-10-28 09:41:45,207 INFO L226 Difference]: Without dead ends: 49 [2021-10-28 09:41:45,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:45,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-28 09:41:45,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-28 09:41:45,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 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) [2021-10-28 09:41:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-28 09:41:45,220 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2021-10-28 09:41:45,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:45,221 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-28 09:41:45,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 09:41:45,221 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-28 09:41:45,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 09:41:45,223 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:45,224 INFO L513 BasicCegarLoop]: 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] [2021-10-28 09:41:45,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:41:45,226 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:45,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:45,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2074006335, now seen corresponding path program 1 times [2021-10-28 09:41:45,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:45,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898326632] [2021-10-28 09:41:45,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:45,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:45,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:45,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:45,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898326632] [2021-10-28 09:41:45,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898326632] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:45,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:45,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:45,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418349411] [2021-10-28 09:41:45,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:45,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:45,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:45,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:45,348 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-10-28 09:41:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:45,365 INFO L93 Difference]: Finished difference Result 133 states and 199 transitions. [2021-10-28 09:41:45,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:45,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) Word has length 24 [2021-10-28 09:41:45,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:45,368 INFO L225 Difference]: With dead ends: 133 [2021-10-28 09:41:45,368 INFO L226 Difference]: Without dead ends: 91 [2021-10-28 09:41:45,369 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:45,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-28 09:41:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2021-10-28 09:41:45,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.5116279069767442) internal successors, (130), 86 states have internal predecessors, (130), 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) [2021-10-28 09:41:45,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 130 transitions. [2021-10-28 09:41:45,380 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 130 transitions. Word has length 24 [2021-10-28 09:41:45,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:45,381 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 130 transitions. [2021-10-28 09:41:45,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-10-28 09:41:45,381 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 130 transitions. [2021-10-28 09:41:45,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 09:41:45,382 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:45,383 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:45,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:41:45,383 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:45,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:45,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1559751670, now seen corresponding path program 1 times [2021-10-28 09:41:45,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:45,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577835117] [2021-10-28 09:41:45,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:45,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:45,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:45,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577835117] [2021-10-28 09:41:45,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577835117] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:45,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:45,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:45,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708691287] [2021-10-28 09:41:45,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:45,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:45,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:45,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:45,460 INFO L87 Difference]: Start difference. First operand 87 states and 130 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-10-28 09:41:45,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:45,521 INFO L93 Difference]: Finished difference Result 210 states and 319 transitions. [2021-10-28 09:41:45,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:45,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) Word has length 26 [2021-10-28 09:41:45,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:45,523 INFO L225 Difference]: With dead ends: 210 [2021-10-28 09:41:45,524 INFO L226 Difference]: Without dead ends: 130 [2021-10-28 09:41:45,525 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:45,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-28 09:41:45,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2021-10-28 09:41:45,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 127 states have internal predecessors, (188), 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) [2021-10-28 09:41:45,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 188 transitions. [2021-10-28 09:41:45,540 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 188 transitions. Word has length 26 [2021-10-28 09:41:45,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:45,540 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 188 transitions. [2021-10-28 09:41:45,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-10-28 09:41:45,541 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 188 transitions. [2021-10-28 09:41:45,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 09:41:45,542 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:45,542 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:45,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:41:45,543 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:45,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:45,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1899452984, now seen corresponding path program 1 times [2021-10-28 09:41:45,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:45,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214557104] [2021-10-28 09:41:45,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:45,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:45,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:45,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214557104] [2021-10-28 09:41:45,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214557104] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:45,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:45,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:45,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038935632] [2021-10-28 09:41:45,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:45,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:45,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:45,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:45,613 INFO L87 Difference]: Start difference. First operand 128 states and 188 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-28 09:41:45,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:45,730 INFO L93 Difference]: Finished difference Result 628 states and 933 transitions. [2021-10-28 09:41:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:41:45,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) Word has length 27 [2021-10-28 09:41:45,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:45,736 INFO L225 Difference]: With dead ends: 628 [2021-10-28 09:41:45,736 INFO L226 Difference]: Without dead ends: 507 [2021-10-28 09:41:45,740 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:41:45,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-10-28 09:41:45,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 235. [2021-10-28 09:41:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 234 states have (on average 1.452991452991453) internal successors, (340), 234 states have internal predecessors, (340), 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) [2021-10-28 09:41:45,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 340 transitions. [2021-10-28 09:41:45,785 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 340 transitions. Word has length 27 [2021-10-28 09:41:45,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:45,785 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 340 transitions. [2021-10-28 09:41:45,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-28 09:41:45,786 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 340 transitions. [2021-10-28 09:41:45,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 09:41:45,792 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:45,792 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:45,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:41:45,792 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:45,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:45,793 INFO L85 PathProgramCache]: Analyzing trace with hash 961369152, now seen corresponding path program 1 times [2021-10-28 09:41:45,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:45,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316808256] [2021-10-28 09:41:45,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:45,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:45,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:45,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:45,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316808256] [2021-10-28 09:41:45,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316808256] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:45,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:45,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:45,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525549799] [2021-10-28 09:41:45,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:45,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:45,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:45,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:45,883 INFO L87 Difference]: Start difference. First operand 235 states and 340 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 09:41:46,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:46,044 INFO L93 Difference]: Finished difference Result 889 states and 1291 transitions. [2021-10-28 09:41:46,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:41:46,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) Word has length 28 [2021-10-28 09:41:46,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:46,055 INFO L225 Difference]: With dead ends: 889 [2021-10-28 09:41:46,055 INFO L226 Difference]: Without dead ends: 661 [2021-10-28 09:41:46,057 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:41:46,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2021-10-28 09:41:46,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 233. [2021-10-28 09:41:46,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.4396551724137931) internal successors, (334), 232 states have internal predecessors, (334), 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) [2021-10-28 09:41:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 334 transitions. [2021-10-28 09:41:46,083 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 334 transitions. Word has length 28 [2021-10-28 09:41:46,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:46,083 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 334 transitions. [2021-10-28 09:41:46,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 09:41:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 334 transitions. [2021-10-28 09:41:46,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 09:41:46,089 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:46,089 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:46,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:41:46,090 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:46,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:46,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2078564813, now seen corresponding path program 1 times [2021-10-28 09:41:46,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:46,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69799113] [2021-10-28 09:41:46,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:46,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:46,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:46,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:46,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69799113] [2021-10-28 09:41:46,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69799113] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:46,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:46,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:41:46,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760304882] [2021-10-28 09:41:46,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:41:46,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:46,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:41:46,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:46,172 INFO L87 Difference]: Start difference. First operand 233 states and 334 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-10-28 09:41:46,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:46,262 INFO L93 Difference]: Finished difference Result 639 states and 901 transitions. [2021-10-28 09:41:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:41:46,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) Word has length 33 [2021-10-28 09:41:46,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:46,268 INFO L225 Difference]: With dead ends: 639 [2021-10-28 09:41:46,268 INFO L226 Difference]: Without dead ends: 413 [2021-10-28 09:41:46,269 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:46,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-10-28 09:41:46,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 257. [2021-10-28 09:41:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.3984375) internal successors, (358), 256 states have internal predecessors, (358), 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) [2021-10-28 09:41:46,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 358 transitions. [2021-10-28 09:41:46,295 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 358 transitions. Word has length 33 [2021-10-28 09:41:46,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:46,295 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 358 transitions. [2021-10-28 09:41:46,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-10-28 09:41:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 358 transitions. [2021-10-28 09:41:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 09:41:46,297 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:46,297 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:46,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:41:46,297 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:46,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:46,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1515337905, now seen corresponding path program 1 times [2021-10-28 09:41:46,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:46,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980707935] [2021-10-28 09:41:46,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:46,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:46,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:46,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:46,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980707935] [2021-10-28 09:41:46,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980707935] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:46,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:46,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:41:46,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455031680] [2021-10-28 09:41:46,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:41:46,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:46,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:41:46,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:41:46,385 INFO L87 Difference]: Start difference. First operand 257 states and 358 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-28 09:41:46,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:46,441 INFO L93 Difference]: Finished difference Result 627 states and 863 transitions. [2021-10-28 09:41:46,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:41:46,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) Word has length 33 [2021-10-28 09:41:46,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:46,445 INFO L225 Difference]: With dead ends: 627 [2021-10-28 09:41:46,445 INFO L226 Difference]: Without dead ends: 377 [2021-10-28 09:41:46,446 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:46,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-10-28 09:41:46,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 273. [2021-10-28 09:41:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 1.375) internal successors, (374), 272 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) [2021-10-28 09:41:46,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 374 transitions. [2021-10-28 09:41:46,478 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 374 transitions. Word has length 33 [2021-10-28 09:41:46,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:46,478 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 374 transitions. [2021-10-28 09:41:46,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-28 09:41:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 374 transitions. [2021-10-28 09:41:46,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 09:41:46,479 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:46,479 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:46,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:41:46,480 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:46,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:46,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2102143919, now seen corresponding path program 1 times [2021-10-28 09:41:46,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:46,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301640878] [2021-10-28 09:41:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:46,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:46,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:46,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301640878] [2021-10-28 09:41:46,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301640878] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:46,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:46,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:46,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197833337] [2021-10-28 09:41:46,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:46,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:46,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:46,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:46,545 INFO L87 Difference]: Start difference. First operand 273 states and 374 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-10-28 09:41:46,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:46,608 INFO L93 Difference]: Finished difference Result 749 states and 1036 transitions. [2021-10-28 09:41:46,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:46,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) Word has length 33 [2021-10-28 09:41:46,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:46,612 INFO L225 Difference]: With dead ends: 749 [2021-10-28 09:41:46,612 INFO L226 Difference]: Without dead ends: 483 [2021-10-28 09:41:46,613 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:46,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2021-10-28 09:41:46,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 481. [2021-10-28 09:41:46,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.3583333333333334) internal successors, (652), 480 states have internal predecessors, (652), 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) [2021-10-28 09:41:46,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 652 transitions. [2021-10-28 09:41:46,653 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 652 transitions. Word has length 33 [2021-10-28 09:41:46,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:46,655 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 652 transitions. [2021-10-28 09:41:46,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-10-28 09:41:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 652 transitions. [2021-10-28 09:41:46,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 09:41:46,656 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:46,656 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:46,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:41:46,657 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:46,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:46,657 INFO L85 PathProgramCache]: Analyzing trace with hash -207511791, now seen corresponding path program 1 times [2021-10-28 09:41:46,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:46,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687480440] [2021-10-28 09:41:46,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:46,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:46,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:46,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:46,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687480440] [2021-10-28 09:41:46,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687480440] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:46,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:46,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:46,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253025709] [2021-10-28 09:41:46,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:46,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:46,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:46,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:46,711 INFO L87 Difference]: Start difference. First operand 481 states and 652 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-10-28 09:41:46,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:46,783 INFO L93 Difference]: Finished difference Result 827 states and 1119 transitions. [2021-10-28 09:41:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:46,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) Word has length 34 [2021-10-28 09:41:46,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:46,789 INFO L225 Difference]: With dead ends: 827 [2021-10-28 09:41:46,789 INFO L226 Difference]: Without dead ends: 825 [2021-10-28 09:41:46,789 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:46,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2021-10-28 09:41:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 614. [2021-10-28 09:41:46,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 613 states have (on average 1.3882544861337685) internal successors, (851), 613 states have internal predecessors, (851), 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) [2021-10-28 09:41:46,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 851 transitions. [2021-10-28 09:41:46,838 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 851 transitions. Word has length 34 [2021-10-28 09:41:46,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:46,839 INFO L470 AbstractCegarLoop]: Abstraction has 614 states and 851 transitions. [2021-10-28 09:41:46,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-10-28 09:41:46,839 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 851 transitions. [2021-10-28 09:41:46,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 09:41:46,841 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:46,841 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:46,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:41:46,842 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:46,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:46,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1115593900, now seen corresponding path program 1 times [2021-10-28 09:41:46,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:46,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281280043] [2021-10-28 09:41:46,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:46,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 09:41:46,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:46,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281280043] [2021-10-28 09:41:46,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281280043] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:46,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:46,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:46,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512947613] [2021-10-28 09:41:46,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:46,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:46,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:46,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:46,888 INFO L87 Difference]: Start difference. First operand 614 states and 851 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-10-28 09:41:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:46,983 INFO L93 Difference]: Finished difference Result 708 states and 976 transitions. [2021-10-28 09:41:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:46,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) Word has length 54 [2021-10-28 09:41:46,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:46,987 INFO L225 Difference]: With dead ends: 708 [2021-10-28 09:41:46,987 INFO L226 Difference]: Without dead ends: 304 [2021-10-28 09:41:46,988 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:46,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-10-28 09:41:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-10-28 09:41:47,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 1.3333333333333333) internal successors, (404), 303 states have internal predecessors, (404), 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) [2021-10-28 09:41:47,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 404 transitions. [2021-10-28 09:41:47,014 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 404 transitions. Word has length 54 [2021-10-28 09:41:47,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:47,014 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 404 transitions. [2021-10-28 09:41:47,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-10-28 09:41:47,015 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 404 transitions. [2021-10-28 09:41:47,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 09:41:47,016 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:47,016 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:47,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 09:41:47,017 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:47,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:47,017 INFO L85 PathProgramCache]: Analyzing trace with hash -540947520, now seen corresponding path program 1 times [2021-10-28 09:41:47,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:47,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656888172] [2021-10-28 09:41:47,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:47,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:47,120 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:41:47,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:47,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656888172] [2021-10-28 09:41:47,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656888172] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:47,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:47,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:41:47,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407659830] [2021-10-28 09:41:47,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:41:47,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:47,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:41:47,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:41:47,125 INFO L87 Difference]: Start difference. First operand 304 states and 404 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-10-28 09:41:47,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:47,364 INFO L93 Difference]: Finished difference Result 936 states and 1222 transitions. [2021-10-28 09:41:47,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:41:47,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) Word has length 56 [2021-10-28 09:41:47,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:47,372 INFO L225 Difference]: With dead ends: 936 [2021-10-28 09:41:47,372 INFO L226 Difference]: Without dead ends: 639 [2021-10-28 09:41:47,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:41:47,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2021-10-28 09:41:47,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 237. [2021-10-28 09:41:47,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.2881355932203389) internal successors, (304), 236 states have internal predecessors, (304), 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) [2021-10-28 09:41:47,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 304 transitions. [2021-10-28 09:41:47,402 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 304 transitions. Word has length 56 [2021-10-28 09:41:47,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:47,403 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 304 transitions. [2021-10-28 09:41:47,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-10-28 09:41:47,404 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 304 transitions. [2021-10-28 09:41:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 09:41:47,404 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:47,405 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:47,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:41:47,405 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:47,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:47,406 INFO L85 PathProgramCache]: Analyzing trace with hash -2106888905, now seen corresponding path program 1 times [2021-10-28 09:41:47,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:47,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007509360] [2021-10-28 09:41:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:47,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:47,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:47,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007509360] [2021-10-28 09:41:47,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007509360] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:41:47,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581664767] [2021-10-28 09:41:47,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:47,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:41:47,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:47,483 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:41:47,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:41:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:47,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:41:47,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:47,891 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:47,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581664767] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:47,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:41:47,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-28 09:41:47,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242460731] [2021-10-28 09:41:47,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:47,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:47,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:47,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:47,895 INFO L87 Difference]: Start difference. First operand 237 states and 304 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-10-28 09:41:47,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:47,997 INFO L93 Difference]: Finished difference Result 435 states and 561 transitions. [2021-10-28 09:41:47,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:47,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) Word has length 58 [2021-10-28 09:41:47,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:47,998 INFO L225 Difference]: With dead ends: 435 [2021-10-28 09:41:47,998 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:41:47,999 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:47,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:41:47,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:41:48,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-28 09:41:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:41:48,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-10-28 09:41:48,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:48,000 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:41:48,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-10-28 09:41:48,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:41:48,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:41:48,003 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:48,004 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:48,004 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:48,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:48,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:41:48,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:41:48,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:48,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:49,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:53,201 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 300) no Hoare annotation was computed. [2021-10-28 09:41:53,202 INFO L857 garLoopResultBuilder]: For program point L300(line 300) no Hoare annotation was computed. [2021-10-28 09:41:53,202 INFO L857 garLoopResultBuilder]: For program point L300-1(line 300) no Hoare annotation was computed. [2021-10-28 09:41:53,202 INFO L857 garLoopResultBuilder]: For program point L300-2(line 300) no Hoare annotation was computed. [2021-10-28 09:41:53,202 INFO L853 garLoopResultBuilder]: At program point L598(lines 593 601) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0)) [2021-10-28 09:41:53,203 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 342) no Hoare annotation was computed. [2021-10-28 09:41:53,203 INFO L853 garLoopResultBuilder]: At program point L336-1(lines 336 342) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse4 (= 1 ~systemActive~0)) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse2 .cse4 .cse6) (and .cse5 .cse0 .cse3 .cse4) (and .cse5 .cse0 .cse4 .cse6 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (and .cse0 .cse1 .cse2 .cse4 .cse6) (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)))) [2021-10-28 09:41:53,203 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 146) no Hoare annotation was computed. [2021-10-28 09:41:53,203 INFO L857 garLoopResultBuilder]: For program point L140-1(lines 140 146) no Hoare annotation was computed. [2021-10-28 09:41:53,203 INFO L857 garLoopResultBuilder]: For program point L140-2(lines 140 146) no Hoare annotation was computed. [2021-10-28 09:41:53,203 INFO L857 garLoopResultBuilder]: For program point L140-3(lines 140 146) no Hoare annotation was computed. [2021-10-28 09:41:53,203 INFO L857 garLoopResultBuilder]: For program point L140-4(lines 140 146) no Hoare annotation was computed. [2021-10-28 09:41:53,204 INFO L857 garLoopResultBuilder]: For program point L140-5(lines 140 146) no Hoare annotation was computed. [2021-10-28 09:41:53,204 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2021-10-28 09:41:53,205 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 300) no Hoare annotation was computed. [2021-10-28 09:41:53,205 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 291) no Hoare annotation was computed. [2021-10-28 09:41:53,205 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 248) no Hoare annotation was computed. [2021-10-28 09:41:53,205 INFO L853 garLoopResultBuilder]: At program point L274-1(lines 1 967) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse7 (<= 1 ~pumpRunning~0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse6 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~1 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse3 .cse4) (and .cse7 .cse0 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)))) [2021-10-28 09:41:53,205 INFO L857 garLoopResultBuilder]: For program point L274-2(lines 274 291) no Hoare annotation was computed. [2021-10-28 09:41:53,206 INFO L860 garLoopResultBuilder]: At program point L241-1(lines 241 248) the Hoare annotation is: true [2021-10-28 09:41:53,206 INFO L853 garLoopResultBuilder]: At program point L274-3(lines 1 967) the Hoare annotation is: false [2021-10-28 09:41:53,206 INFO L857 garLoopResultBuilder]: For program point L274-4(lines 274 291) no Hoare annotation was computed. [2021-10-28 09:41:53,207 INFO L853 garLoopResultBuilder]: At program point L274-5(lines 1 967) the Hoare annotation is: false [2021-10-28 09:41:53,211 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 457) no Hoare annotation was computed. [2021-10-28 09:41:53,212 INFO L857 garLoopResultBuilder]: For program point L440-1(lines 440 457) no Hoare annotation was computed. [2021-10-28 09:41:53,212 INFO L857 garLoopResultBuilder]: For program point L440-2(lines 440 457) no Hoare annotation was computed. [2021-10-28 09:41:53,212 INFO L853 garLoopResultBuilder]: At program point L145(lines 136 149) the Hoare annotation is: false [2021-10-28 09:41:53,212 INFO L853 garLoopResultBuilder]: At program point L145-1(lines 136 149) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ~methaneLevelCritical~0 1))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2) (and .cse0 .cse1 (<= ~waterLevel~0 1) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse2 .cse3) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 .cse3))) [2021-10-28 09:41:53,213 INFO L853 garLoopResultBuilder]: At program point L145-2(lines 136 149) the Hoare annotation is: false [2021-10-28 09:41:53,213 INFO L853 garLoopResultBuilder]: At program point L145-3(lines 136 149) the Hoare annotation is: false [2021-10-28 09:41:53,213 INFO L853 garLoopResultBuilder]: At program point L145-4(lines 136 149) the Hoare annotation is: false [2021-10-28 09:41:53,213 INFO L853 garLoopResultBuilder]: At program point L145-5(lines 136 149) the Hoare annotation is: false [2021-10-28 09:41:53,213 INFO L857 garLoopResultBuilder]: For program point L542(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,215 INFO L857 garLoopResultBuilder]: For program point L542-2(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,215 INFO L857 garLoopResultBuilder]: For program point L542-3(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,215 INFO L857 garLoopResultBuilder]: For program point L542-5(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,216 INFO L857 garLoopResultBuilder]: For program point L542-6(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,217 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 288) no Hoare annotation was computed. [2021-10-28 09:41:53,217 INFO L857 garLoopResultBuilder]: For program point L542-8(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,217 INFO L857 garLoopResultBuilder]: For program point L542-9(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,217 INFO L853 garLoopResultBuilder]: At program point L212(lines 208 214) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0)) [2021-10-28 09:41:53,217 INFO L857 garLoopResultBuilder]: For program point L278-2(lines 278 288) no Hoare annotation was computed. [2021-10-28 09:41:53,218 INFO L857 garLoopResultBuilder]: For program point L542-11(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,218 INFO L857 garLoopResultBuilder]: For program point L542-12(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,218 INFO L857 garLoopResultBuilder]: For program point L278-4(lines 278 288) no Hoare annotation was computed. [2021-10-28 09:41:53,218 INFO L857 garLoopResultBuilder]: For program point L542-14(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,218 INFO L857 garLoopResultBuilder]: For program point L542-15(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,218 INFO L857 garLoopResultBuilder]: For program point L542-17(lines 542 546) no Hoare annotation was computed. [2021-10-28 09:41:53,218 INFO L857 garLoopResultBuilder]: For program point L444(lines 444 452) no Hoare annotation was computed. [2021-10-28 09:41:53,218 INFO L857 garLoopResultBuilder]: For program point L444-1(lines 444 452) no Hoare annotation was computed. [2021-10-28 09:41:53,219 INFO L857 garLoopResultBuilder]: For program point L444-2(lines 444 452) no Hoare annotation was computed. [2021-10-28 09:41:53,219 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 285) no Hoare annotation was computed. [2021-10-28 09:41:53,219 INFO L857 garLoopResultBuilder]: For program point L279-2(lines 279 285) no Hoare annotation was computed. [2021-10-28 09:41:53,219 INFO L857 garLoopResultBuilder]: For program point L279-4(lines 279 285) no Hoare annotation was computed. [2021-10-28 09:41:53,219 INFO L857 garLoopResultBuilder]: For program point L346(lines 346 359) no Hoare annotation was computed. [2021-10-28 09:41:53,219 INFO L857 garLoopResultBuilder]: For program point L414(lines 414 431) no Hoare annotation was computed. [2021-10-28 09:41:53,219 INFO L857 garLoopResultBuilder]: For program point L414-1(lines 414 431) no Hoare annotation was computed. [2021-10-28 09:41:53,221 INFO L857 garLoopResultBuilder]: For program point L414-2(lines 414 431) no Hoare annotation was computed. [2021-10-28 09:41:53,221 INFO L857 garLoopResultBuilder]: For program point L414-3(lines 414 431) no Hoare annotation was computed. [2021-10-28 09:41:53,221 INFO L857 garLoopResultBuilder]: For program point L414-4(lines 414 431) no Hoare annotation was computed. [2021-10-28 09:41:53,221 INFO L857 garLoopResultBuilder]: For program point L414-5(lines 414 431) no Hoare annotation was computed. [2021-10-28 09:41:53,222 INFO L853 garLoopResultBuilder]: At program point L382(lines 381 400) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= ~pumpRunning~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= ~methaneLevelCritical~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 (= 0 ~systemActive~0)) (and .cse0 .cse1 .cse6 .cse3) (and .cse0 .cse1 .cse3 .cse4 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (and .cse1 .cse5 .cse6 .cse3) (and .cse1 .cse5 .cse2 .cse3 .cse4) (and .cse1 .cse5 (<= ~waterLevel~0 1) .cse3 .cse4))) [2021-10-28 09:41:53,222 INFO L857 garLoopResultBuilder]: For program point L382-1(lines 382 388) no Hoare annotation was computed. [2021-10-28 09:41:53,222 INFO L853 garLoopResultBuilder]: At program point L382-2(lines 381 400) the Hoare annotation is: false [2021-10-28 09:41:53,222 INFO L853 garLoopResultBuilder]: At program point L382-3(lines 381 400) the Hoare annotation is: false [2021-10-28 09:41:53,222 INFO L860 garLoopResultBuilder]: At program point L250(lines 231 253) the Hoare annotation is: true [2021-10-28 09:41:53,222 INFO L853 garLoopResultBuilder]: At program point L548(lines 533 551) the Hoare annotation is: false [2021-10-28 09:41:53,223 INFO L853 garLoopResultBuilder]: At program point L548-1(lines 533 551) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ~methaneLevelCritical~0 1))) (or (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 0) (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse2 .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 .cse3))) [2021-10-28 09:41:53,223 INFO L853 garLoopResultBuilder]: At program point L548-2(lines 533 551) the Hoare annotation is: false [2021-10-28 09:41:53,223 INFO L853 garLoopResultBuilder]: At program point L548-3(lines 533 551) the Hoare annotation is: false [2021-10-28 09:41:53,223 INFO L853 garLoopResultBuilder]: At program point L548-4(lines 533 551) the Hoare annotation is: false [2021-10-28 09:41:53,223 INFO L853 garLoopResultBuilder]: At program point L548-5(lines 533 551) the Hoare annotation is: false [2021-10-28 09:41:53,226 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:41:53,227 INFO L857 garLoopResultBuilder]: For program point L317(lines 316 363) no Hoare annotation was computed. [2021-10-28 09:41:53,227 INFO L857 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2021-10-28 09:41:53,227 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-10-28 09:41:53,227 INFO L853 garLoopResultBuilder]: At program point L484(lines 477 487) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_isMethaneAlarm_#res| 1) (= ~methaneLevelCritical~0 1) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (and .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (= ~methaneLevelCritical~0 0) .cse2))) [2021-10-28 09:41:53,227 INFO L853 garLoopResultBuilder]: At program point L484-1(lines 477 487) the Hoare annotation is: false [2021-10-28 09:41:53,227 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 426) no Hoare annotation was computed. [2021-10-28 09:41:53,227 INFO L853 garLoopResultBuilder]: At program point L484-2(lines 477 487) the Hoare annotation is: false [2021-10-28 09:41:53,227 INFO L857 garLoopResultBuilder]: For program point L418-1(lines 418 426) no Hoare annotation was computed. [2021-10-28 09:41:53,228 INFO L857 garLoopResultBuilder]: For program point L352(lines 352 358) no Hoare annotation was computed. [2021-10-28 09:41:53,228 INFO L857 garLoopResultBuilder]: For program point L418-2(lines 418 426) no Hoare annotation was computed. [2021-10-28 09:41:53,228 INFO L853 garLoopResultBuilder]: At program point L352-1(lines 382 388) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse4 (= 1 ~systemActive~0)) (.cse6 (= ~methaneLevelCritical~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse2 .cse4 .cse6) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse5 .cse0 .cse3 .cse4) (and .cse5 .cse0 .cse4 .cse6 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (and .cse0 .cse1 .cse2 .cse4 .cse6))) [2021-10-28 09:41:53,228 INFO L857 garLoopResultBuilder]: For program point L418-3(lines 418 426) no Hoare annotation was computed. [2021-10-28 09:41:53,228 INFO L857 garLoopResultBuilder]: For program point L418-4(lines 418 426) no Hoare annotation was computed. [2021-10-28 09:41:53,228 INFO L857 garLoopResultBuilder]: For program point L418-5(lines 418 426) no Hoare annotation was computed. [2021-10-28 09:41:53,228 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:41:53,229 INFO L853 garLoopResultBuilder]: At program point L389(lines 389 395) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ~methaneLevelCritical~0 1))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 .cse3) (and .cse1 .cse4 (= 0 ~systemActive~0)) (and .cse0 .cse1 .cse5 .cse2) (and .cse1 .cse4 .cse5 .cse2) (and .cse1 .cse4 .cse2 .cse3))) [2021-10-28 09:41:53,229 INFO L853 garLoopResultBuilder]: At program point L389-1(lines 389 395) the Hoare annotation is: false [2021-10-28 09:41:53,229 INFO L853 garLoopResultBuilder]: At program point L389-2(lines 389 395) the Hoare annotation is: false [2021-10-28 09:41:53,229 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 562) no Hoare annotation was computed. [2021-10-28 09:41:53,229 INFO L853 garLoopResultBuilder]: At program point L556-1(lines 556 562) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0)) [2021-10-28 09:41:53,229 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:41:53,229 INFO L853 garLoopResultBuilder]: At program point L590(lines 1 967) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0)) [2021-10-28 09:41:53,230 INFO L857 garLoopResultBuilder]: For program point L326(lines 326 332) no Hoare annotation was computed. [2021-10-28 09:41:53,230 INFO L853 garLoopResultBuilder]: At program point L326-1(lines 326 332) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse7 (<= 1 ~pumpRunning~0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse6 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~1 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse3 .cse4) (and .cse7 .cse0 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)))) [2021-10-28 09:41:53,230 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2021-10-28 09:41:53,230 INFO L857 garLoopResultBuilder]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2021-10-28 09:41:53,231 INFO L857 garLoopResultBuilder]: For program point L63-6(lines 63 67) no Hoare annotation was computed. [2021-10-28 09:41:53,231 INFO L853 garLoopResultBuilder]: At program point L493(lines 488 496) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_isPumpRunning_#res| 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse5 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)) (and (<= 1 ~pumpRunning~0) .cse0 (= ~methAndRunningLastTime~0 0) .cse3 .cse4 .cse5))) [2021-10-28 09:41:53,231 INFO L853 garLoopResultBuilder]: At program point L493-1(lines 488 496) the Hoare annotation is: false [2021-10-28 09:41:53,231 INFO L853 garLoopResultBuilder]: At program point L493-2(lines 488 496) the Hoare annotation is: false [2021-10-28 09:41:53,231 INFO L853 garLoopResultBuilder]: At program point L163-2(lines 163 177) the Hoare annotation is: false [2021-10-28 09:41:53,232 INFO L853 garLoopResultBuilder]: At program point L263(lines 258 265) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0)) [2021-10-28 09:41:53,232 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-28 09:41:53,232 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:41:53,232 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 300) no Hoare annotation was computed. [2021-10-28 09:41:53,232 INFO L853 garLoopResultBuilder]: At program point L364(lines 315 365) the Hoare annotation is: false [2021-10-28 09:41:53,233 INFO L853 garLoopResultBuilder]: At program point L100(lines 95 103) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 1) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (and .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (= ~methaneLevelCritical~0 0) .cse2))) [2021-10-28 09:41:53,233 INFO L853 garLoopResultBuilder]: At program point L100-1(lines 95 103) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse6 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (.cse7 (<= 1 ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse4 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse4 .cse5 .cse6) (and .cse7 .cse0 (= ~methAndRunningLastTime~0 0) .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse4))) [2021-10-28 09:41:53,233 INFO L853 garLoopResultBuilder]: At program point L100-2(lines 95 103) the Hoare annotation is: false [2021-10-28 09:41:53,233 INFO L853 garLoopResultBuilder]: At program point L100-3(lines 95 103) the Hoare annotation is: false [2021-10-28 09:41:53,233 INFO L853 garLoopResultBuilder]: At program point L100-4(lines 95 103) the Hoare annotation is: false [2021-10-28 09:41:53,233 INFO L853 garLoopResultBuilder]: At program point L100-5(lines 95 103) the Hoare annotation is: false [2021-10-28 09:41:53,233 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 171) no Hoare annotation was computed. [2021-10-28 09:41:53,234 INFO L857 garLoopResultBuilder]: For program point L167-1(lines 382 388) no Hoare annotation was computed. [2021-10-28 09:41:53,237 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:53,238 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:41:53,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:41:53 BoogieIcfgContainer [2021-10-28 09:41:53,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:41:53,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:41:53,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:41:53,285 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:41:53,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:41:44" (3/4) ... [2021-10-28 09:41:53,301 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:41:53,330 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-28 09:41:53,331 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-28 09:41:53,332 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-28 09:41:53,333 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-28 09:41:53,334 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 09:41:53,335 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:41:53,336 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:41:53,365 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || ((((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && tmp == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) [2021-10-28 09:41:53,366 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || ((((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && tmp == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) [2021-10-28 09:41:53,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1)) || (((1 <= pumpRunning && splverifierCounter == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) [2021-10-28 09:41:53,368 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1)) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || (((1 <= pumpRunning && splverifierCounter == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) [2021-10-28 09:41:53,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || (((1 <= pumpRunning && splverifierCounter == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && methaneLevelCritical == 1) [2021-10-28 09:41:53,370 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || (((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || ((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive) [2021-10-28 09:41:53,371 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1) || ((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive) [2021-10-28 09:41:53,372 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && \result == 1) && methaneLevelCritical == 1) && \result == 1) || ((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive) [2021-10-28 09:41:53,375 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 1 == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && waterLevel <= 1) && \result == 1) && 1 == systemActive) && methaneLevelCritical == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) [2021-10-28 09:41:53,376 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1) || (((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 0 == systemActive)) || (((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1) [2021-10-28 09:41:53,379 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && 1 == systemActive) && methaneLevelCritical == 1) || (((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) [2021-10-28 09:41:53,456 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:41:53,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:41:53,458 INFO L168 Benchmark]: Toolchain (without parser) took 11181.59 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 75.9 MB in the beginning and 139.7 MB in the end (delta: -63.8 MB). Peak memory consumption was 91.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:53,458 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 111.1 MB. Free memory was 81.8 MB in the beginning and 81.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:41:53,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.41 ms. Allocated memory is still 111.1 MB. Free memory was 75.6 MB in the beginning and 78.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:53,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.14 ms. Allocated memory is still 111.1 MB. Free memory was 78.3 MB in the beginning and 74.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:53,459 INFO L168 Benchmark]: Boogie Preprocessor took 84.59 ms. Allocated memory is still 111.1 MB. Free memory was 74.8 MB in the beginning and 72.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:53,459 INFO L168 Benchmark]: RCFGBuilder took 1173.54 ms. Allocated memory is still 111.1 MB. Free memory was 72.1 MB in the beginning and 77.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:53,460 INFO L168 Benchmark]: TraceAbstraction took 8984.13 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 77.7 MB in the beginning and 51.8 MB in the end (delta: 25.9 MB). Peak memory consumption was 91.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:53,460 INFO L168 Benchmark]: Witness Printer took 171.28 ms. Allocated memory is still 167.8 MB. Free memory was 51.8 MB in the beginning and 139.7 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:53,462 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 111.1 MB. Free memory was 81.8 MB in the beginning and 81.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 680.41 ms. Allocated memory is still 111.1 MB. Free memory was 75.6 MB in the beginning and 78.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.14 ms. Allocated memory is still 111.1 MB. Free memory was 78.3 MB in the beginning and 74.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.59 ms. Allocated memory is still 111.1 MB. Free memory was 74.8 MB in the beginning and 72.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1173.54 ms. Allocated memory is still 111.1 MB. Free memory was 72.1 MB in the beginning and 77.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8984.13 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 77.7 MB in the beginning and 51.8 MB in the end (delta: 25.9 MB). Peak memory consumption was 91.7 MB. Max. memory is 16.1 GB. * Witness Printer took 171.28 ms. Allocated memory is still 167.8 MB. Free memory was 51.8 MB in the beginning and 139.7 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.7 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 300]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 300]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 300]: 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, 117 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1256 SDtfs, 1197 SDslu, 1793 SDs, 0 SdLazy, 230 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=614occurred in iteration=10, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1581 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 166 NumberOfFragments, 916 HoareAnnotationTreeSize, 45 FomulaSimplifications, 201916 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 45 FomulaSimplificationsInter, 47022 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 501 NumberOfCodeBlocks, 501 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 487 ConstructedInterpolants, 0 QuantifiedInterpolants, 938 SizeOfPredicates, 0 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 72/81 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 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 336]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1)) || (((1 <= pumpRunning && splverifierCounter == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || (((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || ((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive) - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && 1 == systemActive) && methaneLevelCritical == 1) || (((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || ((((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && tmp == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1) || (((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 0 == systemActive)) || (((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1) - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: (((((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || (((1 <= pumpRunning && splverifierCounter == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || (((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && methaneLevelCritical == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: (((((((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || (((1 <= pumpRunning && splverifierCounter == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && methaneLevelCritical == 1) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1)) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || (((1 <= pumpRunning && splverifierCounter == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && \result == 1) && methaneLevelCritical == 1) && \result == 1) || ((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive) - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && pumpRunning == 0 - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || ((((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && tmp == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && methaneLevelCritical == 1) && \result == 1) || ((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 1 == systemActive) - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 1 == systemActive) || (((((splverifierCounter == 0 && pumpRunning == 0) && waterLevel <= 1) && \result == 1) && 1 == systemActive) && methaneLevelCritical == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) RESULT: Ultimate proved your program to be correct! [2021-10-28 09:41:53,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8beeee-3a78-4162-a35f-475aee69ea48/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...