./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/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 426d9f957077f660214567f7d0d5aaa1a30c29c0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 17:13:37,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:13:37,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:13:37,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:13:37,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:13:37,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:13:37,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:13:37,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:13:37,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:13:37,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:13:37,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:13:37,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:13:37,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:13:37,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:13:37,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:13:37,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:13:37,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:13:37,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:13:37,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:13:37,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:13:37,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:13:37,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:13:37,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:13:37,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:13:37,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:13:37,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:13:37,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:13:37,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:13:37,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:13:37,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:13:37,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:13:37,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:13:37,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:13:37,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:13:37,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:13:37,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:13:37,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:13:37,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:13:37,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:13:37,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:13:37,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:13:37,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:13:37,833 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:13:37,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:13:37,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:13:37,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:13:37,834 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:13:37,834 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:13:37,835 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:13:37,835 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:13:37,835 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:13:37,835 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:13:37,835 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:13:37,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:13:37,836 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:13:37,836 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:13:37,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:13:37,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:13:37,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:13:37,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:13:37,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:13:37,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:13:37,837 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:13:37,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:13:37,838 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:13:37,838 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:13:37,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:13:37,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:13:37,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:13:37,838 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:13:37,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:13:37,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:13:37,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:13:37,839 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:13:37,840 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:13:37,840 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_be265c09-7ab5-4700-9735-af8e3f4330ed/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 -> 426d9f957077f660214567f7d0d5aaa1a30c29c0 [2019-12-07 17:13:37,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:13:37,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:13:37,955 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:13:37,956 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:13:37,956 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:13:37,957 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2019-12-07 17:13:38,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/data/20bf73ad3/a745fff40b794d91803392d8524452e6/FLAG8f2a0d672 [2019-12-07 17:13:38,352 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:13:38,353 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2019-12-07 17:13:38,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/data/20bf73ad3/a745fff40b794d91803392d8524452e6/FLAG8f2a0d672 [2019-12-07 17:13:38,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/data/20bf73ad3/a745fff40b794d91803392d8524452e6 [2019-12-07 17:13:38,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:13:38,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:13:38,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:13:38,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:13:38,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:13:38,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@881d7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38, skipping insertion in model container [2019-12-07 17:13:38,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:13:38,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:13:38,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:13:38,635 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:13:38,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:13:38,706 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:13:38,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38 WrapperNode [2019-12-07 17:13:38,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:13:38,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:13:38,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:13:38,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:13:38,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:13:38,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:13:38,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:13:38,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:13:38,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (1/1) ... [2019-12-07 17:13:38,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:13:38,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:13:38,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:13:38,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:13:38,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/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 [2019-12-07 17:13:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:13:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:13:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:13:38,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:13:39,190 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:13:39,191 INFO L287 CfgBuilder]: Removed 114 assume(true) statements. [2019-12-07 17:13:39,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:39 BoogieIcfgContainer [2019-12-07 17:13:39,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:13:39,192 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:13:39,192 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:13:39,194 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:13:39,194 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:13:39,195 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:13:38" (1/3) ... [2019-12-07 17:13:39,195 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@511d34bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:13:39, skipping insertion in model container [2019-12-07 17:13:39,195 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:13:39,195 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:13:38" (2/3) ... [2019-12-07 17:13:39,196 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@511d34bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:13:39, skipping insertion in model container [2019-12-07 17:13:39,196 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:13:39,196 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:39" (3/3) ... [2019-12-07 17:13:39,197 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2019-12-07 17:13:39,225 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:13:39,225 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:13:39,225 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:13:39,225 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:13:39,225 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:13:39,225 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:13:39,225 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:13:39,225 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:13:39,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-12-07 17:13:39,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-12-07 17:13:39,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:13:39,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:13:39,260 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:39,260 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:39,260 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:13:39,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-12-07 17:13:39,264 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-12-07 17:13:39,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:13:39,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:13:39,264 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:39,265 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:39,268 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 11#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 75#L543true 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; 80#L551true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 84#L141true assume 0 != main_~tmp~0; 65#L112true ~switchedOnBeforeTS~0 := 0; 45#L904true havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 21#L925-1true [2019-12-07 17:13:39,268 INFO L796 eck$LassoCheckResult]: Loop: 21#L925-1true assume !false; 51#L568true assume test_~splverifierCounter~0 < 4; 64#L569true test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 6#L577true assume !(0 != test_~tmp~4); 8#L577-1true test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 70#L587true assume !(0 != test_~tmp___0~0); 74#L587-1true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 57#L597true assume 0 != test_~tmp___2~0; 29#L603-1true havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 33#L823true __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 17#L914true assume !(0 != ~pumpRunning~0); 5#L738true assume !(0 != ~systemActive~0); 77#L745true havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 71#L704true __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 15#L925true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 21#L925-1true [2019-12-07 17:13:39,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:39,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 17:13:39,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:39,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763434540] [2019-12-07 17:13:39,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:39,508 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:13:39,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:39,509 INFO L82 PathProgramCache]: Analyzing trace with hash -241799531, now seen corresponding path program 1 times [2019-12-07 17:13:39,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:39,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911465072] [2019-12-07 17:13:39,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:39,522 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:13:39,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:39,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1692225679, now seen corresponding path program 1 times [2019-12-07 17:13:39,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:39,525 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151875772] [2019-12-07 17:13:39,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:39,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:39,620 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151875772] [2019-12-07 17:13:39,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:39,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:13:39,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492143654] [2019-12-07 17:13:39,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:39,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:13:39,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:13:39,696 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 6 states. [2019-12-07 17:13:39,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:39,814 INFO L93 Difference]: Finished difference Result 223 states and 310 transitions. [2019-12-07 17:13:39,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:13:39,816 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 310 transitions. [2019-12-07 17:13:39,823 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 143 [2019-12-07 17:13:39,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 202 states and 289 transitions. [2019-12-07 17:13:39,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 202 [2019-12-07 17:13:39,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 202 [2019-12-07 17:13:39,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 202 states and 289 transitions. [2019-12-07 17:13:39,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:13:39,832 INFO L688 BuchiCegarLoop]: Abstraction has 202 states and 289 transitions. [2019-12-07 17:13:39,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states and 289 transitions. [2019-12-07 17:13:39,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 128. [2019-12-07 17:13:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-12-07 17:13:39,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 182 transitions. [2019-12-07 17:13:39,860 INFO L711 BuchiCegarLoop]: Abstraction has 128 states and 182 transitions. [2019-12-07 17:13:39,860 INFO L591 BuchiCegarLoop]: Abstraction has 128 states and 182 transitions. [2019-12-07 17:13:39,861 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:13:39,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states and 182 transitions. [2019-12-07 17:13:39,862 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2019-12-07 17:13:39,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:13:39,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:13:39,863 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:39,863 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:39,863 INFO L794 eck$LassoCheckResult]: Stem: 383#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 343#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 344#L543 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; 404#L551 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 406#L141 assume 0 != main_~tmp~0; 397#L112 ~switchedOnBeforeTS~0 := 0; 386#L904 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 352#L925-1 [2019-12-07 17:13:39,863 INFO L796 eck$LassoCheckResult]: Loop: 352#L925-1 assume !false; 357#L568 assume test_~splverifierCounter~0 < 4; 389#L569 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 333#L577 assume !(0 != test_~tmp~4); 335#L577-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 338#L587 assume !(0 != test_~tmp___0~0); 385#L587-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 392#L597 assume 0 != test_~tmp___2~0; 362#L603-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 366#L823 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 355#L914 assume !(0 != ~pumpRunning~0); 331#L738 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 332#L770 assume !(0 == ~pumpRunning~0); 398#L745 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 402#L704 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 350#L925 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 352#L925-1 [2019-12-07 17:13:39,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:39,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 17:13:39,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:39,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733862790] [2019-12-07 17:13:39,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:39,942 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:13:39,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:39,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1062538435, now seen corresponding path program 1 times [2019-12-07 17:13:39,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:39,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562032964] [2019-12-07 17:13:39,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:39,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562032964] [2019-12-07 17:13:39,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:39,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:13:39,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22382642] [2019-12-07 17:13:39,953 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:13:39,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:39,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:13:39,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:13:39,954 INFO L87 Difference]: Start difference. First operand 128 states and 182 transitions. cyclomatic complexity: 57 Second operand 3 states. [2019-12-07 17:13:40,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:40,009 INFO L93 Difference]: Finished difference Result 175 states and 236 transitions. [2019-12-07 17:13:40,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:13:40,010 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 175 states and 236 transitions. [2019-12-07 17:13:40,011 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2019-12-07 17:13:40,013 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 175 states to 175 states and 236 transitions. [2019-12-07 17:13:40,013 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 175 [2019-12-07 17:13:40,013 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 175 [2019-12-07 17:13:40,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 236 transitions. [2019-12-07 17:13:40,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:13:40,014 INFO L688 BuchiCegarLoop]: Abstraction has 175 states and 236 transitions. [2019-12-07 17:13:40,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 236 transitions. [2019-12-07 17:13:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-12-07 17:13:40,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-12-07 17:13:40,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 236 transitions. [2019-12-07 17:13:40,021 INFO L711 BuchiCegarLoop]: Abstraction has 175 states and 236 transitions. [2019-12-07 17:13:40,021 INFO L591 BuchiCegarLoop]: Abstraction has 175 states and 236 transitions. [2019-12-07 17:13:40,021 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:13:40,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 236 transitions. [2019-12-07 17:13:40,022 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2019-12-07 17:13:40,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:13:40,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:13:40,023 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:40,023 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:40,023 INFO L794 eck$LassoCheckResult]: Stem: 696#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 654#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 655#L543 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; 722#L551 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 727#L141 assume 0 != main_~tmp~0; 711#L112 ~switchedOnBeforeTS~0 := 0; 697#L904 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 661#L925-1 [2019-12-07 17:13:40,023 INFO L796 eck$LassoCheckResult]: Loop: 661#L925-1 assume !false; 700#L568 assume test_~splverifierCounter~0 < 4; 701#L569 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 642#L577 assume !(0 != test_~tmp~4); 644#L577-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 647#L587 assume !(0 != test_~tmp___0~0); 695#L587-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 705#L597 assume 0 != test_~tmp___2~0; 670#L603-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 675#L823 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 664#L914 assume !(0 != ~pumpRunning~0); 640#L738 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 641#L770 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 714#L712 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 680#L717 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 681#L872 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 708#L872-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 676#L878 processEnvironment_#t~ret51 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret51;havoc processEnvironment_#t~ret51; 677#L774 assume !(0 != processEnvironment_~tmp~5); 723#L745 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 716#L704 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 659#L925 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 661#L925-1 [2019-12-07 17:13:40,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:40,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 17:13:40,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:40,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367273717] [2019-12-07 17:13:40,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:40,074 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:13:40,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:40,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1275481455, now seen corresponding path program 1 times [2019-12-07 17:13:40,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:40,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144554594] [2019-12-07 17:13:40,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:13:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:13:40,096 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144554594] [2019-12-07 17:13:40,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:13:40,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 17:13:40,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992987157] [2019-12-07 17:13:40,097 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:13:40,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:13:40,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:13:40,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:13:40,098 INFO L87 Difference]: Start difference. First operand 175 states and 236 transitions. cyclomatic complexity: 64 Second operand 5 states. [2019-12-07 17:13:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:13:40,192 INFO L93 Difference]: Finished difference Result 446 states and 589 transitions. [2019-12-07 17:13:40,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:13:40,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 446 states and 589 transitions. [2019-12-07 17:13:40,195 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 307 [2019-12-07 17:13:40,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 446 states to 446 states and 589 transitions. [2019-12-07 17:13:40,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 446 [2019-12-07 17:13:40,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 446 [2019-12-07 17:13:40,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 446 states and 589 transitions. [2019-12-07 17:13:40,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:13:40,201 INFO L688 BuchiCegarLoop]: Abstraction has 446 states and 589 transitions. [2019-12-07 17:13:40,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states and 589 transitions. [2019-12-07 17:13:40,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 343. [2019-12-07 17:13:40,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-12-07 17:13:40,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 450 transitions. [2019-12-07 17:13:40,213 INFO L711 BuchiCegarLoop]: Abstraction has 343 states and 450 transitions. [2019-12-07 17:13:40,213 INFO L591 BuchiCegarLoop]: Abstraction has 343 states and 450 transitions. [2019-12-07 17:13:40,213 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 17:13:40,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 343 states and 450 transitions. [2019-12-07 17:13:40,215 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 252 [2019-12-07 17:13:40,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:13:40,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:13:40,216 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:13:40,216 INFO L850 BuchiCegarLoop]: Counterexample loop 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] [2019-12-07 17:13:40,216 INFO L794 eck$LassoCheckResult]: Stem: 1334#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1291#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1292#L543 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; 1362#L551 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1367#L141 assume 0 != main_~tmp~0; 1350#L112 ~switchedOnBeforeTS~0 := 0; 1335#L904 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1336#L925-1 [2019-12-07 17:13:40,216 INFO L796 eck$LassoCheckResult]: Loop: 1336#L925-1 assume !false; 1339#L568 assume test_~splverifierCounter~0 < 4; 1340#L569 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 1279#L577 assume !(0 != test_~tmp~4); 1281#L577-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 1284#L587 assume !(0 != test_~tmp___0~0); 1333#L587-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 1343#L597 assume 0 != test_~tmp___2~0; 1308#L603-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1594#L823 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 1593#L914 assume !(0 != ~pumpRunning~0); 1471#L738 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1489#L770 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1365#L712 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1319#L717 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 1320#L872 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 1347#L872-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1315#L878 processEnvironment_#t~ret51 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret51;havoc processEnvironment_#t~ret51; 1316#L774 assume !(0 != processEnvironment_~tmp~5); 1363#L745 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1358#L704 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 1298#L925 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1299#L823-1 __utac_acc__Specification5_spec__3_#t~ret72 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1327#L929 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1336#L925-1 [2019-12-07 17:13:40,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:40,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-12-07 17:13:40,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:40,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990430629] [2019-12-07 17:13:40,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:40,261 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:13:40,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:40,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1671985194, now seen corresponding path program 1 times [2019-12-07 17:13:40,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:40,262 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491784835] [2019-12-07 17:13:40,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:40,271 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:13:40,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:13:40,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1531391856, now seen corresponding path program 1 times [2019-12-07 17:13:40,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:13:40,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783592377] [2019-12-07 17:13:40,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:13:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:13:40,322 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:13:40,440 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-12-07 17:14:06,206 WARN L192 SmtUtils]: Spent 25.72 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 17:14:19,516 WARN L192 SmtUtils]: Spent 13.31 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 17:14:19,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:14:19 BoogieIcfgContainer [2019-12-07 17:14:19,570 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:14:19,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:14:19,570 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:14:19,570 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:14:19,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:13:39" (3/4) ... [2019-12-07 17:14:19,572 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:14:19,609 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_be265c09-7ab5-4700-9735-af8e3f4330ed/bin/uautomizer/witness.graphml [2019-12-07 17:14:19,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:14:19,610 INFO L168 Benchmark]: Toolchain (without parser) took 41237.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 939.8 MB in the beginning and 975.9 MB in the end (delta: -36.2 MB). Peak memory consumption was 143.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:19,610 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:14:19,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:19,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:19,611 INFO L168 Benchmark]: Boogie Preprocessor took 26.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:14:19,611 INFO L168 Benchmark]: RCFGBuilder took 414.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:19,612 INFO L168 Benchmark]: BuchiAutomizer took 40377.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.9 MB). Free memory was 1.1 GB in the beginning and 978.2 MB in the end (delta: 73.7 MB). Peak memory consumption was 246.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:19,612 INFO L168 Benchmark]: Witness Printer took 39.27 ms. Allocated memory is still 1.2 GB. Free memory was 978.2 MB in the beginning and 975.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:14:19,613 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 332.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 414.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40377.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.9 MB). Free memory was 1.1 GB in the beginning and 978.2 MB in the end (delta: 73.7 MB). Peak memory consumption was 246.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.27 ms. Allocated memory is still 1.2 GB. Free memory was 978.2 MB in the beginning and 975.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 343 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 39.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 177 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 343 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 377 SDtfs, 885 SDslu, 1005 SDs, 0 SdLazy, 138 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 567]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2947} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=2947, NULL=2958, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20d18a9a=0, NULL=0, NULL=0, NULL=0, NULL=2955, NULL=2953, methaneLevelCritical=0, tmp=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e3f93e0=0, tmp=0, NULL=0, NULL=2966, NULL=0, NULL=2948, tmp___1=0, NULL=2962, NULL=2960, NULL=2949, NULL=2965, retValue_acc=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=2970, NULL=2964, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f4cf0dc=69, NULL=2954, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@231f4a1c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22bd546c=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a4392bb=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@442cf158=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=2950, \result=0, NULL=2967, NULL=0, tmp___0=0, NULL=0, NULL=2972, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp___0=0, retValue_acc=1, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15fe97dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50891ed2=0, NULL=2968, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cb65360=0, NULL=0, NULL=2963, NULL=0, retValue_acc=1, \result=1, NULL=2957, NULL=2956, retValue_acc=0, retValue_acc=1, tmp___2=69, NULL=2959, tmp=1, splverifierCounter=0, head=0, NULL=0, tmp=0, NULL=2951, NULL=0, NULL=2961, NULL=0, NULL=2969, NULL=0, NULL=0, NULL=2952, NULL=2971, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int cleanupTimeShifts = 4; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int waterLevel = 1; [L630] int methaneLevelCritical = 0; [L726] int pumpRunning = 0; [L727] int systemActive = 1; [L898] int switchedOnBeforeTS ; [L132] int retValue_acc ; [L133] int tmp ; [L547] int retValue_acc ; [L550] retValue_acc = 1 [L551] return (retValue_acc); [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) [L903] switchedOnBeforeTS = 0 [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 Loop: [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp)) [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) [L819] int retValue_acc ; [L822] retValue_acc = pumpRunning [L823] return (retValue_acc); [L912] switchedOnBeforeTS = isPumpRunning() [L738] COND FALSE !(\read(pumpRunning)) [L745] COND TRUE \read(systemActive) [L767] int tmp ; [L770] COND TRUE ! pumpRunning [L864] int retValue_acc ; [L865] int tmp ; [L866] int tmp___0 ; [L709] int retValue_acc ; [L712] COND TRUE waterLevel < 2 [L713] retValue_acc = 1 [L714] return (retValue_acc); [L870] tmp = isHighWaterSensorDry() [L872] COND TRUE \read(tmp) [L873] tmp___0 = 0 [L877] retValue_acc = tmp___0 [L878] return (retValue_acc); [L772] tmp = isHighWaterLevel() [L774] COND FALSE !(\read(tmp)) [L918] int tmp ; [L919] int tmp___0 ; [L700] int retValue_acc ; [L703] retValue_acc = waterLevel [L704] return (retValue_acc); [L923] tmp = getWaterLevel() [L925] COND TRUE tmp != 2 [L819] int retValue_acc ; [L822] retValue_acc = pumpRunning [L823] return (retValue_acc); [L927] tmp___0 = isPumpRunning() [L929] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...