./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf530681c562daa6fa9ab5223cf4d9c859dac38d ........................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:47:23,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:47:23,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:47:23,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:47:23,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:47:23,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:47:23,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:47:23,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:47:23,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:47:23,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:47:23,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:47:23,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:47:23,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:47:23,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:47:23,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:47:23,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:47:23,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:47:23,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:47:23,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:47:23,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:47:23,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:47:23,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:47:23,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:47:23,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:47:23,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:47:23,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:47:23,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:47:23,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:47:23,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:47:23,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:47:23,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:47:23,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:47:23,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:47:23,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:47:23,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:47:23,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:47:23,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:47:23,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:47:23,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:47:23,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:47:23,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:47:23,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:47:23,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:47:23,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:47:23,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:47:23,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:47:23,854 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:47:23,855 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:47:23,855 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:47:23,855 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:47:23,856 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:47:23,856 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:47:23,857 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:47:23,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:47:23,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:47:23,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:47:23,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:47:23,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:47:23,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:47:23,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:47:23,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:47:23,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:47:23,861 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:47:23,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:47:23,861 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:47:23,862 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:47:23,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:47:23,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:47:23,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:47:23,863 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:47:23,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:47:23,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:47:23,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:47:23,866 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:47:23,867 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:47:23,868 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf530681c562daa6fa9ab5223cf4d9c859dac38d [2020-11-30 00:47:24,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:47:24,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:47:24,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:47:24,317 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:47:24,318 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:47:24,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-11-30 00:47:24,419 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/data/4bd11239e/bd33c25581ea4fbcb291a4c94ffd93e4/FLAG4aebb5d34 [2020-11-30 00:47:25,204 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:47:25,205 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-11-30 00:47:25,220 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/data/4bd11239e/bd33c25581ea4fbcb291a4c94ffd93e4/FLAG4aebb5d34 [2020-11-30 00:47:25,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/data/4bd11239e/bd33c25581ea4fbcb291a4c94ffd93e4 [2020-11-30 00:47:25,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:47:25,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:47:25,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:47:25,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:47:25,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:47:25,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:47:25" (1/1) ... [2020-11-30 00:47:25,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11889560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:25, skipping insertion in model container [2020-11-30 00:47:25,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:47:25" (1/1) ... [2020-11-30 00:47:25,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:47:25,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:47:25,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:47:25,953 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:47:26,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:47:26,128 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:47:26,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26 WrapperNode [2020-11-30 00:47:26,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:47:26,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:47:26,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:47:26,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:47:26,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (1/1) ... [2020-11-30 00:47:26,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (1/1) ... [2020-11-30 00:47:26,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:47:26,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:47:26,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:47:26,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:47:26,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (1/1) ... [2020-11-30 00:47:26,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (1/1) ... [2020-11-30 00:47:26,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (1/1) ... [2020-11-30 00:47:26,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (1/1) ... [2020-11-30 00:47:26,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (1/1) ... [2020-11-30 00:47:26,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (1/1) ... [2020-11-30 00:47:26,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (1/1) ... [2020-11-30 00:47:26,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:47:26,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:47:26,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:47:26,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:47:26,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:47:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:47:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:47:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:47:26,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:47:27,560 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:47:27,561 INFO L298 CfgBuilder]: Removed 84 assume(true) statements. [2020-11-30 00:47:27,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:47:27 BoogieIcfgContainer [2020-11-30 00:47:27,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:47:27,566 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:47:27,567 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:47:27,571 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:47:27,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:47:27,573 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:47:25" (1/3) ... [2020-11-30 00:47:27,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61a775cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:47:27, skipping insertion in model container [2020-11-30 00:47:27,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:47:27,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:47:26" (2/3) ... [2020-11-30 00:47:27,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61a775cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:47:27, skipping insertion in model container [2020-11-30 00:47:27,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:47:27,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:47:27" (3/3) ... [2020-11-30 00:47:27,593 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-11-30 00:47:27,674 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:47:27,674 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:47:27,674 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:47:27,675 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:47:27,675 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:47:27,675 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:47:27,675 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:47:27,675 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:47:27,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states. [2020-11-30 00:47:27,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2020-11-30 00:47:27,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:47:27,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:47:27,756 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:47:27,756 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:27,756 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:47:27,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states. [2020-11-30 00:47:27,773 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2020-11-30 00:47:27,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:47:27,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:47:27,775 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:47:27,776 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:27,792 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 9#L-1true havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 15#L413true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 35#L421true main_#t~ret78 := valid_product_#res;main_~tmp~6 := main_#t~ret78;havoc main_#t~ret78; 28#L874true assume 0 != main_~tmp~6; 57#L851true havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 45#L61-1true [2020-11-30 00:47:27,793 INFO L796 eck$LassoCheckResult]: Loop: 45#L61-1true assume !false; 59#L97true assume test_~splverifierCounter~0 < 4; 21#L98true test_~tmp~1 := test_#t~nondet10;havoc test_#t~nondet10; 30#L106true assume !(0 != test_~tmp~1); 7#L106-1true test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 53#L116true assume !(0 != test_~tmp___0~1); 51#L116-1true test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 36#L126true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 41#L134-1true assume !(0 != ~pumpRunning~0); 46#L167true assume !(0 != ~systemActive~0); 65#L174true havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 29#L351true __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 33#L55true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 45#L61-1true [2020-11-30 00:47:27,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:27,801 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:47:27,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:27,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576016839] [2020-11-30 00:47:27,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:28,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:28,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:28,490 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:28,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:28,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941121, now seen corresponding path program 1 times [2020-11-30 00:47:28,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:28,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980386898] [2020-11-30 00:47:28,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:47:28,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:28,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980386898] [2020-11-30 00:47:28,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:47:28,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:47:28,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567661975] [2020-11-30 00:47:28,593 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:47:28,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:28,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:47:28,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:47:28,615 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2020-11-30 00:47:28,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:28,702 INFO L93 Difference]: Finished difference Result 118 states and 162 transitions. [2020-11-30 00:47:28,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:47:28,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 162 transitions. [2020-11-30 00:47:28,714 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 74 [2020-11-30 00:47:28,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 104 states and 147 transitions. [2020-11-30 00:47:28,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2020-11-30 00:47:28,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2020-11-30 00:47:28,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2020-11-30 00:47:28,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:47:28,747 INFO L691 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2020-11-30 00:47:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2020-11-30 00:47:28,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2020-11-30 00:47:28,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 00:47:28,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2020-11-30 00:47:28,819 INFO L714 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2020-11-30 00:47:28,820 INFO L594 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2020-11-30 00:47:28,820 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:47:28,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2020-11-30 00:47:28,826 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2020-11-30 00:47:28,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:47:28,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:47:28,830 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:47:28,830 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:28,831 INFO L794 eck$LassoCheckResult]: Stem: 228#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 205#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 206#L413 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 214#L421 main_#t~ret78 := valid_product_#res;main_~tmp~6 := main_#t~ret78;havoc main_#t~ret78; 222#L874 assume 0 != main_~tmp~6; 223#L851 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 217#L61-1 [2020-11-30 00:47:28,833 INFO L796 eck$LassoCheckResult]: Loop: 217#L61-1 assume !false; 239#L97 assume test_~splverifierCounter~0 < 4; 218#L98 test_~tmp~1 := test_#t~nondet10;havoc test_#t~nondet10; 219#L106 assume !(0 != test_~tmp~1); 201#L106-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 202#L116 assume !(0 != test_~tmp___0~1); 275#L116-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 274#L126 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 230#L134-1 assume !(0 != ~pumpRunning~0); 271#L167 assume 0 != ~systemActive~0; 256#L174 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 224#L351 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 225#L55 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 217#L61-1 [2020-11-30 00:47:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:28,834 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:47:28,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:28,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015712374] [2020-11-30 00:47:28,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:28,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:29,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:29,072 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:29,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1673030494, now seen corresponding path program 1 times [2020-11-30 00:47:29,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:29,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172392975] [2020-11-30 00:47:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:29,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:29,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:29,116 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:29,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:29,117 INFO L82 PathProgramCache]: Analyzing trace with hash 41248444, now seen corresponding path program 1 times [2020-11-30 00:47:29,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:29,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057927628] [2020-11-30 00:47:29,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:47:29,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:29,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057927628] [2020-11-30 00:47:29,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:47:29,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:47:29,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594733696] [2020-11-30 00:47:29,386 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-30 00:47:29,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:29,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:47:29,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:47:29,465 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. cyclomatic complexity: 45 Second operand 5 states. [2020-11-30 00:47:29,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:29,766 INFO L93 Difference]: Finished difference Result 319 states and 461 transitions. [2020-11-30 00:47:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:47:29,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 461 transitions. [2020-11-30 00:47:29,777 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 240 [2020-11-30 00:47:29,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 319 states and 461 transitions. [2020-11-30 00:47:29,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2020-11-30 00:47:29,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 319 [2020-11-30 00:47:29,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 319 states and 461 transitions. [2020-11-30 00:47:29,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:47:29,800 INFO L691 BuchiCegarLoop]: Abstraction has 319 states and 461 transitions. [2020-11-30 00:47:29,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states and 461 transitions. [2020-11-30 00:47:29,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 198. [2020-11-30 00:47:29,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-30 00:47:29,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 274 transitions. [2020-11-30 00:47:29,843 INFO L714 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2020-11-30 00:47:29,843 INFO L594 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2020-11-30 00:47:29,843 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:47:29,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 274 transitions. [2020-11-30 00:47:29,850 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 144 [2020-11-30 00:47:29,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:47:29,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:47:29,851 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:47:29,852 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:29,852 INFO L794 eck$LassoCheckResult]: Stem: 669#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 647#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 648#L413 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 655#L421 main_#t~ret78 := valid_product_#res;main_~tmp~6 := main_#t~ret78;havoc main_#t~ret78; 662#L874 assume 0 != main_~tmp~6; 663#L851 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 657#L61-1 [2020-11-30 00:47:29,852 INFO L796 eck$LassoCheckResult]: Loop: 657#L61-1 assume !false; 682#L97 assume test_~splverifierCounter~0 < 4; 699#L98 test_~tmp~1 := test_#t~nondet10;havoc test_#t~nondet10; 771#L106 assume !(0 != test_~tmp~1); 768#L106-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 766#L116 assume !(0 != test_~tmp___0~1); 763#L116-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 760#L126 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 756#L134-1 assume !(0 != ~pumpRunning~0); 752#L167 assume 0 != ~systemActive~0; 751#L174 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 664#L351 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 665#L55 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 670#L383 __utac_acc__Specification3_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 688#L61 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 657#L61-1 [2020-11-30 00:47:29,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:29,853 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:47:29,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:29,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107575129] [2020-11-30 00:47:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:29,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:29,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:30,006 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:30,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:30,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1464530634, now seen corresponding path program 1 times [2020-11-30 00:47:30,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:30,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474524630] [2020-11-30 00:47:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:30,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:30,017 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:30,021 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:30,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:30,022 INFO L82 PathProgramCache]: Analyzing trace with hash 985054416, now seen corresponding path program 1 times [2020-11-30 00:47:30,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:30,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561380935] [2020-11-30 00:47:30,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:30,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:47:30,122 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:47:30,141 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:47:30,312 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-11-30 00:49:04,166 WARN L193 SmtUtils]: Spent 1.56 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:50:07,565 WARN L193 SmtUtils]: Spent 1.06 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:50:07,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:50:07 BoogieIcfgContainer [2020-11-30 00:50:07,898 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:50:07,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:50:07,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:50:07,899 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:50:07,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:47:27" (3/4) ... [2020-11-30 00:50:07,903 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:50:07,954 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7fc7e761-97cf-4478-ba27-be277410d3ad/bin/uautomizer/witness.graphml [2020-11-30 00:50:07,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:50:07,956 INFO L168 Benchmark]: Toolchain (without parser) took 162490.51 ms. Allocated memory was 94.4 MB in the beginning and 140.5 MB in the end (delta: 46.1 MB). Free memory was 65.6 MB in the beginning and 83.2 MB in the end (delta: -17.5 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:07,957 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 94.4 MB. Free memory was 54.4 MB in the beginning and 54.4 MB in the end (delta: 45.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:50:07,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.64 ms. Allocated memory is still 94.4 MB. Free memory was 65.4 MB in the beginning and 61.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:07,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.65 ms. Allocated memory is still 94.4 MB. Free memory was 61.8 MB in the beginning and 59.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:07,958 INFO L168 Benchmark]: Boogie Preprocessor took 77.85 ms. Allocated memory is still 94.4 MB. Free memory was 59.1 MB in the beginning and 57.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:07,959 INFO L168 Benchmark]: RCFGBuilder took 1249.91 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 57.0 MB in the beginning and 56.1 MB in the end (delta: 856.7 kB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:07,960 INFO L168 Benchmark]: BuchiAutomizer took 160331.24 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 55.6 MB in the beginning and 86.3 MB in the end (delta: -30.7 MB). Peak memory consumption was 59.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:07,960 INFO L168 Benchmark]: Witness Printer took 56.53 ms. Allocated memory is still 140.5 MB. Free memory was 86.3 MB in the beginning and 83.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:50:07,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 94.4 MB. Free memory was 54.4 MB in the beginning and 54.4 MB in the end (delta: 45.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 661.64 ms. Allocated memory is still 94.4 MB. Free memory was 65.4 MB in the beginning and 61.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.65 ms. Allocated memory is still 94.4 MB. Free memory was 61.8 MB in the beginning and 59.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.85 ms. Allocated memory is still 94.4 MB. Free memory was 59.1 MB in the beginning and 57.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1249.91 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 57.0 MB in the beginning and 56.1 MB in the end (delta: 856.7 kB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 160331.24 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 55.6 MB in the beginning and 86.3 MB in the end (delta: -30.7 MB). Peak memory consumption was 59.5 MB. Max. memory is 16.1 GB. * Witness Printer took 56.53 ms. Allocated memory is still 140.5 MB. Free memory was 86.3 MB in the beginning and 83.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 198 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 160.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 159.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 123 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 198 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 186 SDtfs, 347 SDslu, 361 SDs, 0 SdLazy, 53 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 96]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=25666} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=25666, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3430e1f3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47e2272e=0, NULL=25681, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76c27678=0, NULL=0, NULL=0, NULL=25693, retValue_acc=0, NULL=25674, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b51a687=0, NULL=25669, methaneLevelCritical=0, NULL=25682, NULL=0, NULL=25668, NULL=25683, NULL=0, tmp___1=0, NULL=25678, NULL=25688, NULL=0, NULL=0, tmp___0=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14bea42b=0, NULL=25686, tmp=0, cleanupTimeShifts=4, tmp=0, NULL=25675, NULL=25677, NULL=25684, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, retValue_acc=0, retValue_acc=1, NULL=25685, \result=1, head=0, pumpRunning=0, \result=0, NULL=25673, NULL=25679, NULL=0, NULL=25691, NULL=0, NULL=0, NULL=0, tmp=1, NULL=25672, NULL=0, retValue_acc=1, NULL=25670, NULL=0, NULL=0, NULL=25694, NULL=0, NULL=0, NULL=25671, tmp___2=71, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=25680, NULL=25667, NULL=25692, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31e3423a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dbf2231=71, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fec0e00=0, head=0, NULL=25676, NULL=25687, NULL=0, NULL=0, NULL=0, NULL=25689, NULL=25690} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L308] int waterLevel = 1; [L309] int methaneLevelCritical = 0; [L595] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L792] int cleanupTimeShifts = 4; [L865] int retValue_acc ; [L866] int tmp ; [L417] int retValue_acc ; [L420] retValue_acc = 1 [L421] return (retValue_acc); [L872] tmp = valid_product() [L874] COND TRUE \read(tmp) [L87] int splverifierCounter ; [L88] int tmp ; [L89] int tmp___0 ; [L90] int tmp___1 ; [L91] int tmp___2 ; [L94] splverifierCounter = 0 Loop: [L96] COND TRUE 1 [L98] COND TRUE splverifierCounter < 4 [L104] tmp = __VERIFIER_nondet_int() [L106] COND FALSE !(\read(tmp)) [L114] tmp___0 = __VERIFIER_nondet_int() [L116] COND FALSE !(\read(tmp___0)) [L124] tmp___2 = __VERIFIER_nondet_int() [L126] COND TRUE \read(tmp___2) [L303] systemActive = 1 [L167] COND FALSE !(\read(pumpRunning)) [L174] COND TRUE \read(systemActive) [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L347] int retValue_acc ; [L350] retValue_acc = methaneLevelCritical [L351] return (retValue_acc); [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L379] int retValue_acc ; [L382] retValue_acc = waterLevel [L383] return (retValue_acc); [L59] tmp___0 = getWaterLevel() [L61] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...