./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08266259dc0ecf0b11540043fa73fc4406b9f127 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08266259dc0ecf0b11540043fa73fc4406b9f127 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:56:41,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:41,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:41,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:41,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:41,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:41,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:41,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:41,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:41,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:41,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:41,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:41,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:41,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:41,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:41,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:41,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:41,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:41,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:41,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:41,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:41,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:41,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:41,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:41,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:41,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:41,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:41,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:41,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:41,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:41,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:41,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:41,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:41,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:41,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:41,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:41,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:41,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:41,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:41,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:41,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:41,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:56:41,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:41,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:41,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:41,221 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:41,221 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:41,221 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:41,221 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:56:41,222 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:41,222 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:41,222 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:56:41,222 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:56:41,222 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:41,223 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:56:41,223 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:56:41,223 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:56:41,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:41,224 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:41,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:56:41,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:41,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:41,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:41,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:41,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:41,226 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:41,226 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:41,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:41,226 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:41,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:41,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:41,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:41,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:41,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:41,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:41,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:41,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:41,228 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:56:41,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:56:41,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:41,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:41,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:41,229 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08266259dc0ecf0b11540043fa73fc4406b9f127 [2020-11-22 12:56:41,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:41,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:41,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:41,493 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:41,493 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:41,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2020-11-22 12:56:41,563 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/data/6e6079c14/c0d6d82da9084cc88b4511997b7586f7/FLAGafe949916 [2020-11-22 12:56:42,043 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:42,043 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2020-11-22 12:56:42,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/data/6e6079c14/c0d6d82da9084cc88b4511997b7586f7/FLAGafe949916 [2020-11-22 12:56:42,373 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/data/6e6079c14/c0d6d82da9084cc88b4511997b7586f7 [2020-11-22 12:56:42,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:42,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:42,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:42,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:42,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:42,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:42" (1/1) ... [2020-11-22 12:56:42,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a4691c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:42, skipping insertion in model container [2020-11-22 12:56:42,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:42" (1/1) ... [2020-11-22 12:56:42,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:42,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:42,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:42,802 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 12:56:42,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@451cbf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:42, skipping insertion in model container [2020-11-22 12:56:42,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:42,804 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:56:42,810 INFO L168 Benchmark]: Toolchain (without parser) took 428.20 ms. Allocated memory is still 113.2 MB. Free memory was 86.2 MB in the beginning and 86.8 MB in the end (delta: -595.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:42,811 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 113.2 MB. Free memory is still 69.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:42,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.62 ms. Allocated memory is still 113.2 MB. Free memory was 85.9 MB in the beginning and 87.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:42,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 113.2 MB. Free memory is still 69.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 425.62 ms. Allocated memory is still 113.2 MB. Free memory was 85.9 MB in the beginning and 87.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 246]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:56:45,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:45,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:45,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:45,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:45,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:45,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:45,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:45,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:45,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:45,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:45,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:45,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:45,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:45,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:45,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:45,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:45,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:45,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:45,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:45,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:45,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:45,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:45,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:45,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:45,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:45,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:45,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:45,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:45,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:45,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:45,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:45,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:45,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:45,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:45,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:45,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:45,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:45,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:45,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:45,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:45,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:56:45,195 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:45,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:45,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:45,198 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:45,199 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:45,199 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:45,199 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:45,199 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:45,200 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:45,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:45,202 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:45,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:45,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:45,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:45,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:45,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:45,203 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:45,204 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:56:45,204 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:56:45,204 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:45,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:45,204 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:45,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:45,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:45,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:56:45,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:45,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:45,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:45,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:45,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:45,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:45,207 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:56:45,207 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:56:45,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:45,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:45,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:45,208 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08266259dc0ecf0b11540043fa73fc4406b9f127 [2020-11-22 12:56:45,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:45,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:45,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:45,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:45,652 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:45,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2020-11-22 12:56:45,732 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/data/3f558ba2c/b4bf653753564b5e9790f2159bda13a8/FLAGbdac3ea37 [2020-11-22 12:56:46,320 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:46,320 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2020-11-22 12:56:46,333 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/data/3f558ba2c/b4bf653753564b5e9790f2159bda13a8/FLAGbdac3ea37 [2020-11-22 12:56:46,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/data/3f558ba2c/b4bf653753564b5e9790f2159bda13a8 [2020-11-22 12:56:46,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:46,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:46,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:46,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:46,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:46,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:46" (1/1) ... [2020-11-22 12:56:46,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3db502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:46, skipping insertion in model container [2020-11-22 12:56:46,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:46" (1/1) ... [2020-11-22 12:56:46,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:46,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:47,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:47,088 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:56:47,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:47,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:47,173 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:56:47,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:47,282 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:56:47,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47 WrapperNode [2020-11-22 12:56:47,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:47,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:47,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:56:47,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:56:47,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (1/1) ... [2020-11-22 12:56:47,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (1/1) ... [2020-11-22 12:56:47,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:47,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:56:47,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:56:47,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:56:47,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (1/1) ... [2020-11-22 12:56:47,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (1/1) ... [2020-11-22 12:56:47,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (1/1) ... [2020-11-22 12:56:47,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (1/1) ... [2020-11-22 12:56:47,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (1/1) ... [2020-11-22 12:56:47,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (1/1) ... [2020-11-22 12:56:47,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (1/1) ... [2020-11-22 12:56:47,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:56:47,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:56:47,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:56:47,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:56:47,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:56:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:56:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:56:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:56:49,881 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:56:49,881 INFO L298 CfgBuilder]: Removed 120 assume(true) statements. [2020-11-22 12:56:49,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:49 BoogieIcfgContainer [2020-11-22 12:56:49,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:56:49,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:56:49,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:56:49,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:56:49,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:46" (1/3) ... [2020-11-22 12:56:49,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5081bcbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:49, skipping insertion in model container [2020-11-22 12:56:49,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:47" (2/3) ... [2020-11-22 12:56:49,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5081bcbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:49, skipping insertion in model container [2020-11-22 12:56:49,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:49" (3/3) ... [2020-11-22 12:56:49,895 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2020-11-22 12:56:49,906 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:56:49,912 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:56:49,923 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:56:49,965 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:56:49,966 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:56:49,967 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:56:49,967 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:56:49,967 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:56:49,967 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:56:49,967 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:56:49,967 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:56:49,993 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-22 12:56:49,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 12:56:49,999 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:50,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:50,000 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:50,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:50,006 INFO L82 PathProgramCache]: Analyzing trace with hash -742459830, now seen corresponding path program 1 times [2020-11-22 12:56:50,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:50,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746963769] [2020-11-22 12:56:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:50,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:56:50,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:50,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:50,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:50,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746963769] [2020-11-22 12:56:50,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:50,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:56:50,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120730990] [2020-11-22 12:56:50,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:56:50,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:50,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:56:50,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:50,286 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-22 12:56:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:50,311 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-11-22 12:56:50,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:56:50,313 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 12:56:50,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:50,322 INFO L225 Difference]: With dead ends: 171 [2020-11-22 12:56:50,323 INFO L226 Difference]: Without dead ends: 83 [2020-11-22 12:56:50,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:50,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-22 12:56:50,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-11-22 12:56:50,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-11-22 12:56:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2020-11-22 12:56:50,364 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2020-11-22 12:56:50,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:50,364 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-11-22 12:56:50,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:56:50,365 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2020-11-22 12:56:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 12:56:50,365 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:50,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:50,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:56:50,582 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:50,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:50,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1789216727, now seen corresponding path program 1 times [2020-11-22 12:56:50,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:50,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010150529] [2020-11-22 12:56:50,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:50,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:56:50,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:50,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:50,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010150529] [2020-11-22 12:56:50,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:50,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:56:50,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336703254] [2020-11-22 12:56:50,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:56:50,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:50,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:56:50,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:50,844 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 4 states. [2020-11-22 12:56:50,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:50,858 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2020-11-22 12:56:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:56:50,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 12:56:50,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:50,860 INFO L225 Difference]: With dead ends: 83 [2020-11-22 12:56:50,860 INFO L226 Difference]: Without dead ends: 37 [2020-11-22 12:56:50,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:50,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-22 12:56:50,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-22 12:56:50,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-22 12:56:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-11-22 12:56:50,867 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2020-11-22 12:56:50,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:50,867 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-11-22 12:56:50,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:56:50,868 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-11-22 12:56:50,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 12:56:50,869 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:50,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:51,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:56:51,093 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:51,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:51,096 INFO L82 PathProgramCache]: Analyzing trace with hash -2126819203, now seen corresponding path program 1 times [2020-11-22 12:56:51,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:51,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787191248] [2020-11-22 12:56:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:51,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:56:51,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:51,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:51,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:51,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787191248] [2020-11-22 12:56:51,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:51,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:56:51,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038034070] [2020-11-22 12:56:51,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:56:51,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:51,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:56:51,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:51,384 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 4 states. [2020-11-22 12:56:51,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:51,394 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2020-11-22 12:56:51,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:56:51,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 12:56:51,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:51,396 INFO L225 Difference]: With dead ends: 68 [2020-11-22 12:56:51,396 INFO L226 Difference]: Without dead ends: 37 [2020-11-22 12:56:51,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:51,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-22 12:56:51,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-22 12:56:51,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-22 12:56:51,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2020-11-22 12:56:51,403 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2020-11-22 12:56:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:51,404 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2020-11-22 12:56:51,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:56:51,404 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2020-11-22 12:56:51,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-22 12:56:51,405 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:51,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:51,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:56:51,623 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:51,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:51,623 INFO L82 PathProgramCache]: Analyzing trace with hash -306622024, now seen corresponding path program 1 times [2020-11-22 12:56:51,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:51,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264668531] [2020-11-22 12:56:51,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:51,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:56:51,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:51,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:51,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264668531] [2020-11-22 12:56:51,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:51,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:56:51,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125786846] [2020-11-22 12:56:51,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:56:51,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:51,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:56:51,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:51,833 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2020-11-22 12:56:51,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:51,918 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2020-11-22 12:56:51,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:56:51,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-22 12:56:51,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:51,920 INFO L225 Difference]: With dead ends: 89 [2020-11-22 12:56:51,920 INFO L226 Difference]: Without dead ends: 58 [2020-11-22 12:56:51,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:51,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-22 12:56:51,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-11-22 12:56:51,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-22 12:56:51,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2020-11-22 12:56:51,939 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2020-11-22 12:56:51,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:51,939 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2020-11-22 12:56:51,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:56:51,940 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2020-11-22 12:56:51,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-22 12:56:51,941 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:51,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:52,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:56:52,165 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:52,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:52,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1880803796, now seen corresponding path program 1 times [2020-11-22 12:56:52,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:52,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580587195] [2020-11-22 12:56:52,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:52,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:56:52,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:52,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:52,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580587195] [2020-11-22 12:56:52,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:52,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 12:56:52,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482998115] [2020-11-22 12:56:52,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:56:52,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:52,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:56:52,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:56:52,445 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 8 states. [2020-11-22 12:56:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:52,856 INFO L93 Difference]: Finished difference Result 390 states and 569 transitions. [2020-11-22 12:56:52,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-22 12:56:52,857 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-11-22 12:56:52,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:52,861 INFO L225 Difference]: With dead ends: 390 [2020-11-22 12:56:52,861 INFO L226 Difference]: Without dead ends: 340 [2020-11-22 12:56:52,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-11-22 12:56:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-11-22 12:56:52,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 140. [2020-11-22 12:56:52,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-22 12:56:52,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2020-11-22 12:56:52,913 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 29 [2020-11-22 12:56:52,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:52,914 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2020-11-22 12:56:52,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:56:52,915 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2020-11-22 12:56:52,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-22 12:56:52,921 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:52,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:53,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:56:53,141 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:53,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:53,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1819696723, now seen corresponding path program 1 times [2020-11-22 12:56:53,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:53,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420771059] [2020-11-22 12:56:53,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:53,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:56:53,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:53,395 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 12:56:53,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:53,407 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 12:56:53,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420771059] [2020-11-22 12:56:53,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:53,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:56:53,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139289023] [2020-11-22 12:56:53,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:56:53,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:53,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:56:53,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:56:53,410 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand 5 states. [2020-11-22 12:56:53,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:53,487 INFO L93 Difference]: Finished difference Result 388 states and 531 transitions. [2020-11-22 12:56:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:56:53,488 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-11-22 12:56:53,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:53,490 INFO L225 Difference]: With dead ends: 388 [2020-11-22 12:56:53,490 INFO L226 Difference]: Without dead ends: 254 [2020-11-22 12:56:53,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:56:53,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-11-22 12:56:53,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 149. [2020-11-22 12:56:53,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-11-22 12:56:53,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 202 transitions. [2020-11-22 12:56:53,513 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 202 transitions. Word has length 47 [2020-11-22 12:56:53,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:53,514 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 202 transitions. [2020-11-22 12:56:53,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:56:53,514 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 202 transitions. [2020-11-22 12:56:53,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-22 12:56:53,516 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:53,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:53,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:56:53,733 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:53,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:53,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1965797483, now seen corresponding path program 1 times [2020-11-22 12:56:53,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:53,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19288256] [2020-11-22 12:56:53,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:53,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:56:53,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 12:56:53,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:54,014 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 12:56:54,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19288256] [2020-11-22 12:56:54,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:54,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 12:56:54,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975746310] [2020-11-22 12:56:54,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 12:56:54,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:54,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 12:56:54,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 12:56:54,017 INFO L87 Difference]: Start difference. First operand 149 states and 202 transitions. Second operand 6 states. [2020-11-22 12:56:54,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:54,069 INFO L93 Difference]: Finished difference Result 337 states and 458 transitions. [2020-11-22 12:56:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:56:54,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2020-11-22 12:56:54,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:54,073 INFO L225 Difference]: With dead ends: 337 [2020-11-22 12:56:54,073 INFO L226 Difference]: Without dead ends: 194 [2020-11-22 12:56:54,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:56:54,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-11-22 12:56:54,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 123. [2020-11-22 12:56:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-22 12:56:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 164 transitions. [2020-11-22 12:56:54,097 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 164 transitions. Word has length 47 [2020-11-22 12:56:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:54,098 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 164 transitions. [2020-11-22 12:56:54,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 12:56:54,098 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 164 transitions. [2020-11-22 12:56:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-22 12:56:54,099 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:54,100 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:54,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 12:56:54,314 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:54,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:54,314 INFO L82 PathProgramCache]: Analyzing trace with hash -2134697109, now seen corresponding path program 1 times [2020-11-22 12:56:54,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:54,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898066214] [2020-11-22 12:56:54,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:54,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 12:56:54,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:54,598 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 12:56:54,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 12:56:54,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898066214] [2020-11-22 12:56:54,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [641184791] [2020-11-22 12:56:54,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-22 12:56:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:54,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 12:56:54,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:54,884 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 12:56:54,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:54,896 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 12:56:54,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764766257] [2020-11-22 12:56:54,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 12:56:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:55,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 12:56:55,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:55,072 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 12:56:55,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 12:56:55,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-11-22 12:56:55,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2020-11-22 12:56:55,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224308981] [2020-11-22 12:56:55,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 12:56:55,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:55,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 12:56:55,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:56:55,087 INFO L87 Difference]: Start difference. First operand 123 states and 164 transitions. Second operand 10 states. [2020-11-22 12:56:55,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:55,967 INFO L93 Difference]: Finished difference Result 751 states and 1038 transitions. [2020-11-22 12:56:55,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-22 12:56:55,967 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-11-22 12:56:55,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:55,972 INFO L225 Difference]: With dead ends: 751 [2020-11-22 12:56:55,972 INFO L226 Difference]: Without dead ends: 657 [2020-11-22 12:56:55,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 272 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2020-11-22 12:56:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-11-22 12:56:56,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 223. [2020-11-22 12:56:56,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-11-22 12:56:56,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 304 transitions. [2020-11-22 12:56:56,008 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 304 transitions. Word has length 48 [2020-11-22 12:56:56,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:56,009 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 304 transitions. [2020-11-22 12:56:56,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 12:56:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 304 transitions. [2020-11-22 12:56:56,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-22 12:56:56,010 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:56,010 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:56,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 12:56:56,628 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:56,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:56,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1767540063, now seen corresponding path program 2 times [2020-11-22 12:56:56,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:56,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445938167] [2020-11-22 12:56:56,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:58,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-22 12:56:58,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-11-22 12:56:58,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:59,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:59,437 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:56:59,437 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:56:59,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-22 12:56:59,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:59 BoogieIcfgContainer [2020-11-22 12:56:59,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:59,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:59,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:59,810 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:59,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:49" (3/4) ... [2020-11-22 12:56:59,812 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:56:59,982 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_898ed5c0-4f90-4302-9281-4a90b7b4a425/bin/utaipan/witness.graphml [2020-11-22 12:56:59,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:59,984 INFO L168 Benchmark]: Toolchain (without parser) took 13343.23 ms. Allocated memory was 52.4 MB in the beginning and 107.0 MB in the end (delta: 54.5 MB). Free memory was 28.3 MB in the beginning and 65.3 MB in the end (delta: -37.1 MB). Peak memory consumption was 54.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:59,985 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:59,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.97 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 28.2 MB in the beginning and 31.6 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:59,986 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.61 ms. Allocated memory is still 65.0 MB. Free memory was 31.4 MB in the beginning and 46.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:59,986 INFO L168 Benchmark]: Boogie Preprocessor took 49.42 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 44.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:59,987 INFO L168 Benchmark]: RCFGBuilder took 2477.70 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 44.0 MB in the beginning and 62.8 MB in the end (delta: -18.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:59,987 INFO L168 Benchmark]: TraceAbstraction took 9922.49 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 62.8 MB in the beginning and 40.0 MB in the end (delta: 22.8 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:59,989 INFO L168 Benchmark]: Witness Printer took 172.52 ms. Allocated memory is still 107.0 MB. Free memory was 40.0 MB in the beginning and 65.3 MB in the end (delta: -25.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:59,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 638.97 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 28.2 MB in the beginning and 31.6 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.61 ms. Allocated memory is still 65.0 MB. Free memory was 31.4 MB in the beginning and 46.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.42 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 44.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2477.70 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 44.0 MB in the beginning and 62.8 MB in the end (delta: -18.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9922.49 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 62.8 MB in the beginning and 40.0 MB in the end (delta: 22.8 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. * Witness Printer took 172.52 ms. Allocated memory is still 107.0 MB. Free memory was 40.0 MB in the beginning and 65.3 MB in the end (delta: -25.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L387] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int pumpRunning = 0; [L655] int systemActive = 1; [L824] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L897] int retValue_acc ; [L898] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L200] int retValue_acc ; [L203] retValue_acc = 1 [L204] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L587] int splverifierCounter ; [L588] int tmp ; [L589] int tmp___0 ; [L590] int tmp___1 ; [L591] int tmp___2 ; [L594] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L596] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L604] tmp = __VERIFIER_nondet_int() [L606] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L661] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L668] COND TRUE \read(systemActive) [L690] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND TRUE ! pumpRunning [L805] int retValue_acc ; [L806] int tmp ; [L807] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L811] tmp = isHighWaterSensorDry() [L813] COND FALSE !(\read(tmp)) [L816] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L818] retValue_acc = tmp___0 [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] tmp = isHighWaterLevel() [L697] COND TRUE \read(tmp) [L724] int tmp ; [L749] int retValue_acc ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L753] retValue_acc = isMethaneLevelCritical() [L755] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L728] tmp = isMethaneAlarm() [L730] COND FALSE !(\read(tmp)) [L718] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L146] int tmp ; [L147] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L151] tmp = getWaterLevel() [L153] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L596] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L598] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L604] tmp = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L668] COND TRUE \read(systemActive) [L690] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L693] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L146] int tmp ; [L147] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L151] tmp = getWaterLevel() [L153] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L598] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L604] tmp = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L661] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L668] COND TRUE \read(systemActive) [L690] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L693] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L146] int tmp ; [L147] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L151] tmp = getWaterLevel() [L153] COND TRUE tmp == 0 [L760] int retValue_acc ; [L763] retValue_acc = pumpRunning [L764] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L155] tmp___0 = isPumpRunning() [L157] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product41.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.6s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 632 SDtfs, 1481 SDslu, 1332 SDs, 0 SdLazy, 281 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 702 GetRequests, 645 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 812 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 670 ConstructedInterpolants, 0 QuantifiedInterpolants, 85879 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2142 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 86/140 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...