./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_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_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD --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 859282ae831edbc368c6c02a28d784b7a1a4e20c5d272fba61fe5454e7afcc18 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:07:20,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:07:20,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:07:21,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:07:21,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:07:21,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:07:21,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:07:21,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:07:21,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:07:21,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:07:21,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:07:21,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:07:21,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:07:21,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:07:21,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:07:21,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:07:21,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:07:21,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:07:21,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:07:21,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:07:21,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:07:21,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:07:21,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:07:21,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:07:21,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:07:21,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:07:21,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:07:21,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:07:21,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:07:21,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:07:21,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:07:21,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:07:21,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:07:21,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:07:21,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:07:21,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:07:21,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:07:21,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:07:21,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:07:21,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:07:21,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:07:21,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:07:21,131 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:07:21,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:07:21,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:07:21,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:07:21,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:07:21,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:07:21,133 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:07:21,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:07:21,134 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:07:21,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:07:21,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:07:21,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:07:21,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:07:21,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:07:21,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:07:21,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:07:21,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:07:21,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:07:21,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:07:21,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:07:21,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:07:21,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:07:21,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:07:21,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:07:21,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:07:21,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:07:21,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:07:21,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:07:21,138 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:07:21,138 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:07:21,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:07:21,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:07:21,139 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_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 859282ae831edbc368c6c02a28d784b7a1a4e20c5d272fba61fe5454e7afcc18 [2021-10-28 23:07:21,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:07:21,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:07:21,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:07:21,397 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:07:21,398 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:07:21,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2021-10-28 23:07:21,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/data/2d48b87a1/9c53517eaad5415399f7c6d60f7af44a/FLAG12471e6ca [2021-10-28 23:07:21,999 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:07:22,000 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2021-10-28 23:07:22,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/data/2d48b87a1/9c53517eaad5415399f7c6d60f7af44a/FLAG12471e6ca [2021-10-28 23:07:22,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/data/2d48b87a1/9c53517eaad5415399f7c6d60f7af44a [2021-10-28 23:07:22,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:07:22,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:07:22,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:22,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:07:22,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:07:22,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:22,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ae1149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22, skipping insertion in model container [2021-10-28 23:07:22,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:22,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:07:22,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:07:22,660 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_30319123-4aea-42b0-9471-ad9f63a12ed3/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c[7086,7099] [2021-10-28 23:07:22,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:22,786 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:07:22,852 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_30319123-4aea-42b0-9471-ad9f63a12ed3/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c[7086,7099] [2021-10-28 23:07:22,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:22,922 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:07:22,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22 WrapperNode [2021-10-28 23:07:22,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:22,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:07:22,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:07:22,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:07:22,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:22,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:23,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:07:23,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:07:23,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:07:23,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:07:23,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:23,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:23,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:23,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:23,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:23,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:23,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:23,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:07:23,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:07:23,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:07:23,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:07:23,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (1/1) ... [2021-10-28 23:07:23,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:07:23,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:07:23,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:07:23,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:07:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:07:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:07:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:07:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:07:24,045 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:07:24,046 INFO L299 CfgBuilder]: Removed 166 assume(true) statements. [2021-10-28 23:07:24,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:24 BoogieIcfgContainer [2021-10-28 23:07:24,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:07:24,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:07:24,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:07:24,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:07:24,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:07:22" (1/3) ... [2021-10-28 23:07:24,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43466a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:07:24, skipping insertion in model container [2021-10-28 23:07:24,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:22" (2/3) ... [2021-10-28 23:07:24,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43466a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:07:24, skipping insertion in model container [2021-10-28 23:07:24,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:24" (3/3) ... [2021-10-28 23:07:24,056 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2021-10-28 23:07:24,061 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:07:24,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 23:07:24,151 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:07:24,159 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 23:07:24,160 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:07:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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 23:07:24,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:07:24,187 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:24,188 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 23:07:24,188 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 23:07:24,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1240734729, now seen corresponding path program 1 times [2021-10-28 23:07:24,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:24,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039015241] [2021-10-28 23:07:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:24,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:24,436 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 23:07:24,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:07:24,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039015241] [2021-10-28 23:07:24,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039015241] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:24,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:24,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:07:24,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264662156] [2021-10-28 23:07:24,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:07:24,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:07:24,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:07:24,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:07:24,460 INFO L87 Difference]: Start difference. First operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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 23:07:24,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:24,490 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2021-10-28 23:07:24,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:07:24,491 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 23:07:24,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:24,501 INFO L225 Difference]: With dead ends: 232 [2021-10-28 23:07:24,501 INFO L226 Difference]: Without dead ends: 115 [2021-10-28 23:07:24,504 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 23:07:24,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-28 23:07:24,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-28 23:07:24,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 112 states have (on average 1.5) internal successors, (168), 114 states have internal predecessors, (168), 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 23:07:24,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2021-10-28 23:07:24,546 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2021-10-28 23:07:24,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:24,547 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2021-10-28 23:07:24,547 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 23:07:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2021-10-28 23:07:24,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:07:24,549 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:24,549 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 23:07:24,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:07:24,550 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 23:07:24,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:24,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1444708423, now seen corresponding path program 1 times [2021-10-28 23:07:24,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:24,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804438111] [2021-10-28 23:07:24,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:24,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:24,728 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 23:07:24,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:07:24,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804438111] [2021-10-28 23:07:24,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804438111] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:24,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:24,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:07:24,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383325653] [2021-10-28 23:07:24,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:07:24,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:07:24,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:07:24,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:07:24,733 INFO L87 Difference]: Start difference. First operand 115 states and 168 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 23:07:24,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:24,757 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2021-10-28 23:07:24,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:07:24,758 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 23:07:24,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:24,762 INFO L225 Difference]: With dead ends: 115 [2021-10-28 23:07:24,763 INFO L226 Difference]: Without dead ends: 49 [2021-10-28 23:07:24,764 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 23:07:24,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-28 23:07:24,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-28 23:07:24,778 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 23:07:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-28 23:07:24,780 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2021-10-28 23:07:24,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:24,781 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-28 23:07:24,781 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 23:07:24,781 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-28 23:07:24,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:07:24,784 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:24,785 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 23:07:24,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:07:24,785 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 23:07:24,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:24,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1084287686, now seen corresponding path program 1 times [2021-10-28 23:07:24,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:24,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896551653] [2021-10-28 23:07:24,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:24,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:24,911 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 23:07:24,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:07:24,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896551653] [2021-10-28 23:07:24,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896551653] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:24,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:24,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:07:24,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932323174] [2021-10-28 23:07:24,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:07:24,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:07:24,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:07:24,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:07:24,915 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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 23:07:25,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:25,110 INFO L93 Difference]: Finished difference Result 160 states and 238 transitions. [2021-10-28 23:07:25,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:07:25,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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 23:07:25,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:25,112 INFO L225 Difference]: With dead ends: 160 [2021-10-28 23:07:25,113 INFO L226 Difference]: Without dead ends: 117 [2021-10-28 23:07:25,113 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:07:25,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-28 23:07:25,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 70. [2021-10-28 23:07:25,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.4927536231884058) internal successors, (103), 69 states have internal predecessors, (103), 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 23:07:25,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 103 transitions. [2021-10-28 23:07:25,123 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 103 transitions. Word has length 24 [2021-10-28 23:07:25,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:25,123 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 103 transitions. [2021-10-28 23:07:25,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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 23:07:25,124 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2021-10-28 23:07:25,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:07:25,125 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:25,125 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 23:07:25,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:07:25,126 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 23:07:25,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:25,126 INFO L85 PathProgramCache]: Analyzing trace with hash -857120593, now seen corresponding path program 1 times [2021-10-28 23:07:25,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:25,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308669330] [2021-10-28 23:07:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:25,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:25,195 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 23:07:25,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:07:25,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308669330] [2021-10-28 23:07:25,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308669330] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:25,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:25,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:07:25,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233321247] [2021-10-28 23:07:25,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:07:25,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:07:25,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:07:25,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:07:25,198 INFO L87 Difference]: Start difference. First operand 70 states and 103 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 23:07:25,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:25,227 INFO L93 Difference]: Finished difference Result 157 states and 233 transitions. [2021-10-28 23:07:25,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:07:25,228 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 23:07:25,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:25,229 INFO L225 Difference]: With dead ends: 157 [2021-10-28 23:07:25,229 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 23:07:25,230 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 23:07:25,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 23:07:25,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2021-10-28 23:07:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.4444444444444444) internal successors, (130), 90 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 23:07:25,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2021-10-28 23:07:25,240 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 26 [2021-10-28 23:07:25,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:25,240 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2021-10-28 23:07:25,241 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 23:07:25,241 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2021-10-28 23:07:25,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 23:07:25,242 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:25,242 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 23:07:25,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:07:25,243 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 23:07:25,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:25,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1307189925, now seen corresponding path program 1 times [2021-10-28 23:07:25,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:25,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009224824] [2021-10-28 23:07:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:25,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:25,342 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 23:07:25,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:07:25,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009224824] [2021-10-28 23:07:25,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009224824] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:25,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:25,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:07:25,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341887717] [2021-10-28 23:07:25,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:07:25,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:07:25,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:07:25,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:07:25,346 INFO L87 Difference]: Start difference. First operand 91 states and 130 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 23:07:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:25,486 INFO L93 Difference]: Finished difference Result 474 states and 695 transitions. [2021-10-28 23:07:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:07:25,487 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 23:07:25,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:25,491 INFO L225 Difference]: With dead ends: 474 [2021-10-28 23:07:25,492 INFO L226 Difference]: Without dead ends: 389 [2021-10-28 23:07:25,493 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:07:25,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2021-10-28 23:07:25,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 156. [2021-10-28 23:07:25,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 1.4064516129032258) internal successors, (218), 155 states have internal predecessors, (218), 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 23:07:25,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 218 transitions. [2021-10-28 23:07:25,535 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 218 transitions. Word has length 27 [2021-10-28 23:07:25,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:25,536 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 218 transitions. [2021-10-28 23:07:25,536 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 23:07:25,536 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 218 transitions. [2021-10-28 23:07:25,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:07:25,542 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:25,542 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, 1] [2021-10-28 23:07:25,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:07:25,542 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 23:07:25,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:25,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1287513629, now seen corresponding path program 1 times [2021-10-28 23:07:25,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:25,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082906392] [2021-10-28 23:07:25,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:25,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:25,635 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:25,750 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:07:25,751 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:07:25,752 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:07:25,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:07:25,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:07:25,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:07:25,760 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-28 23:07:25,764 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:07:25,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:07:25 BoogieIcfgContainer [2021-10-28 23:07:25,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:07:25,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:07:25,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:07:25,877 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:07:25,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:24" (3/4) ... [2021-10-28 23:07:25,879 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:07:26,011 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:07:26,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:07:26,013 INFO L168 Benchmark]: Toolchain (without parser) took 3684.38 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 74.5 MB in the beginning and 52.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 59.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:26,014 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:07:26,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.27 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 74.2 MB in the beginning and 110.2 MB in the end (delta: -36.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:26,015 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.26 ms. Allocated memory is still 142.6 MB. Free memory was 110.2 MB in the beginning and 106.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:26,015 INFO L168 Benchmark]: Boogie Preprocessor took 61.81 ms. Allocated memory is still 142.6 MB. Free memory was 106.0 MB in the beginning and 103.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:26,016 INFO L168 Benchmark]: RCFGBuilder took 963.47 ms. Allocated memory is still 142.6 MB. Free memory was 103.2 MB in the beginning and 60.6 MB in the end (delta: 42.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:26,016 INFO L168 Benchmark]: TraceAbstraction took 1827.10 ms. Allocated memory is still 142.6 MB. Free memory was 59.9 MB in the beginning and 63.5 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:07:26,017 INFO L168 Benchmark]: Witness Printer took 134.44 ms. Allocated memory is still 142.6 MB. Free memory was 63.5 MB in the beginning and 52.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:26,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 591.27 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 74.2 MB in the beginning and 110.2 MB in the end (delta: -36.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.26 ms. Allocated memory is still 142.6 MB. Free memory was 110.2 MB in the beginning and 106.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.81 ms. Allocated memory is still 142.6 MB. Free memory was 106.0 MB in the beginning and 103.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 963.47 ms. Allocated memory is still 142.6 MB. Free memory was 103.2 MB in the beginning and 60.6 MB in the end (delta: 42.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1827.10 ms. Allocated memory is still 142.6 MB. Free memory was 59.9 MB in the beginning and 63.5 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 134.44 ms. Allocated memory is still 142.6 MB. Free memory was 63.5 MB in the beginning and 52.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 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 - CounterExampleResult [Line: 461]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L195] int pumpRunning = 0; [L196] int systemActive = 1; [L635] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L391] int splverifierCounter ; [L392] int tmp ; [L393] int tmp___0 ; [L394] int tmp___1 ; [L395] int tmp___2 ; [L398] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L402] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L408] tmp = __VERIFIER_nondet_int() [L410] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L113] COND TRUE waterLevel < 2 [L114] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L418] tmp___0 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L428] tmp___2 = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp___2)) [L434] tmp___1 = __VERIFIER_nondet_int() [L436] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L377] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L384] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L203] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L210] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L929] int tmp ; [L930] int tmp___0 ; [L931] int tmp___1 ; [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L935] tmp = isMethaneLevelCritical() [L937] COND FALSE !(\read(tmp)) [L166] int retValue_acc ; [L169] retValue_acc = waterLevel [L170] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L941] tmp___0 = getWaterLevel() [L943] COND TRUE tmp___0 == 2 [L310] int retValue_acc ; [L313] retValue_acc = pumpRunning [L314] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L945] tmp___1 = isPumpRunning() [L947] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L461] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 461]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 461]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 493 SDtfs, 631 SDslu, 644 SDs, 0 SdLazy, 79 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=5, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 282 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:07:26,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30319123-4aea-42b0-9471-ad9f63a12ed3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...