./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6346ce5eb6334508a32a1216a3fa5c414f15aa87 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-cad4683 [2019-11-16 00:38:55,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:38:55,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:38:55,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:38:55,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:38:55,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:38:55,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:38:55,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:38:55,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:38:55,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:38:55,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:38:55,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:38:55,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:38:55,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:38:55,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:38:55,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:38:55,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:38:55,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:38:55,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:38:55,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:38:55,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:38:55,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:38:55,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:38:55,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:38:55,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:38:55,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:38:55,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:38:55,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:38:55,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:38:55,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:38:55,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:38:55,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:38:55,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:38:55,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:38:55,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:38:55,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:38:55,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:38:55,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:38:55,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:38:55,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:38:55,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:38:55,873 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:38:55,902 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:38:55,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:38:55,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:38:55,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:38:55,907 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:38:55,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:38:55,908 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:38:55,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:38:55,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:38:55,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:38:55,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:38:55,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:38:55,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:38:55,909 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:38:55,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:38:55,909 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:38:55,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:38:55,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:38:55,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:38:55,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:38:55,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:38:55,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:38:55,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:38:55,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:38:55,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:38:55,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:38:55,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:38:55,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:38:55,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6346ce5eb6334508a32a1216a3fa5c414f15aa87 [2019-11-16 00:38:55,938 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:38:55,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:38:55,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:38:55,953 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:38:55,953 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:38:55,954 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2019-11-16 00:38:56,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/data/cc9153ac5/2b583fa8aff64755b1d6e2084396b06c/FLAG9e6b04de9 [2019-11-16 00:38:56,456 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:38:56,457 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2019-11-16 00:38:56,476 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/data/cc9153ac5/2b583fa8aff64755b1d6e2084396b06c/FLAG9e6b04de9 [2019-11-16 00:38:56,489 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/data/cc9153ac5/2b583fa8aff64755b1d6e2084396b06c [2019-11-16 00:38:56,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:38:56,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:38:56,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:38:56,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:38:56,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:38:56,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:56" (1/1) ... [2019-11-16 00:38:56,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30031fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56, skipping insertion in model container [2019-11-16 00:38:56,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:56" (1/1) ... [2019-11-16 00:38:56,508 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:38:56,548 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:38:56,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:38:57,016 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:38:57,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:38:57,126 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:38:57,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57 WrapperNode [2019-11-16 00:38:57,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:38:57,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:38:57,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:38:57,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:38:57,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (1/1) ... [2019-11-16 00:38:57,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (1/1) ... [2019-11-16 00:38:57,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:38:57,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:38:57,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:38:57,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:38:57,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (1/1) ... [2019-11-16 00:38:57,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (1/1) ... [2019-11-16 00:38:57,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (1/1) ... [2019-11-16 00:38:57,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (1/1) ... [2019-11-16 00:38:57,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (1/1) ... [2019-11-16 00:38:57,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (1/1) ... [2019-11-16 00:38:57,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (1/1) ... [2019-11-16 00:38:57,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:38:57,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:38:57,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:38:57,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:38:57,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/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 [2019-11-16 00:38:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:38:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-16 00:38:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:38:57,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:38:58,224 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:38:58,225 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-11-16 00:38:58,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:58 BoogieIcfgContainer [2019-11-16 00:38:58,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:38:58,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:38:58,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:38:58,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:38:58,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:38:56" (1/3) ... [2019-11-16 00:38:58,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c770912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:58, skipping insertion in model container [2019-11-16 00:38:58,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:57" (2/3) ... [2019-11-16 00:38:58,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c770912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:58, skipping insertion in model container [2019-11-16 00:38:58,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:58" (3/3) ... [2019-11-16 00:38:58,237 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2019-11-16 00:38:58,244 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:38:58,253 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-16 00:38:58,265 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-16 00:38:58,289 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:38:58,289 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:38:58,289 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:38:58,289 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:38:58,289 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:38:58,289 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:38:58,290 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:38:58,290 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:38:58,314 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-11-16 00:38:58,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-16 00:38:58,321 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:38:58,322 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:38:58,324 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:38:58,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:38:58,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1669144853, now seen corresponding path program 1 times [2019-11-16 00:38:58,336 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:38:58,336 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198964989] [2019-11-16 00:38:58,337 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:38:58,337 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:38:58,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:38:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:38:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:38:58,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198964989] [2019-11-16 00:38:58,579 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:38:58,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:38:58,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710105947] [2019-11-16 00:38:58,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:38:58,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:38:58,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:38:58,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:38:58,595 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2019-11-16 00:38:58,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:38:58,620 INFO L93 Difference]: Finished difference Result 216 states and 323 transitions. [2019-11-16 00:38:58,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:38:58,622 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-16 00:38:58,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:38:58,633 INFO L225 Difference]: With dead ends: 216 [2019-11-16 00:38:58,633 INFO L226 Difference]: Without dead ends: 107 [2019-11-16 00:38:58,636 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:38:58,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-11-16 00:38:58,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-11-16 00:38:58,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-16 00:38:58,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2019-11-16 00:38:58,678 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 18 [2019-11-16 00:38:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:38:58,678 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2019-11-16 00:38:58,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:38:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2019-11-16 00:38:58,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-16 00:38:58,680 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:38:58,680 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:38:58,680 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:38:58,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:38:58,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1714791690, now seen corresponding path program 1 times [2019-11-16 00:38:58,681 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:38:58,681 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320999934] [2019-11-16 00:38:58,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:38:58,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:38:58,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:38:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:38:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:38:58,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320999934] [2019-11-16 00:38:58,784 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:38:58,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:38:58,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548776524] [2019-11-16 00:38:58,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:38:58,786 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:38:58,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:38:58,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:38:58,787 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand 3 states. [2019-11-16 00:38:58,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:38:58,798 INFO L93 Difference]: Finished difference Result 107 states and 153 transitions. [2019-11-16 00:38:58,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:38:58,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-16 00:38:58,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:38:58,800 INFO L225 Difference]: With dead ends: 107 [2019-11-16 00:38:58,800 INFO L226 Difference]: Without dead ends: 45 [2019-11-16 00:38:58,803 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:38:58,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-16 00:38:58,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-11-16 00:38:58,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-16 00:38:58,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2019-11-16 00:38:58,808 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 19 [2019-11-16 00:38:58,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:38:58,809 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2019-11-16 00:38:58,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:38:58,809 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2019-11-16 00:38:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-16 00:38:58,810 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:38:58,810 INFO L380 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] [2019-11-16 00:38:58,811 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:38:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:38:58,811 INFO L82 PathProgramCache]: Analyzing trace with hash -458606052, now seen corresponding path program 1 times [2019-11-16 00:38:58,811 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:38:58,812 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741511963] [2019-11-16 00:38:58,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:38:58,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:38:58,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:38:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:38:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:38:58,908 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741511963] [2019-11-16 00:38:58,908 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:38:58,908 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:38:58,908 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452966467] [2019-11-16 00:38:58,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:38:58,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:38:58,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:38:58,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:38:58,909 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2019-11-16 00:38:58,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:38:58,926 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2019-11-16 00:38:58,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:38:58,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-16 00:38:58,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:38:58,931 INFO L225 Difference]: With dead ends: 84 [2019-11-16 00:38:58,932 INFO L226 Difference]: Without dead ends: 45 [2019-11-16 00:38:58,933 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:38:58,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-16 00:38:58,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-11-16 00:38:58,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-16 00:38:58,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2019-11-16 00:38:58,942 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 24 [2019-11-16 00:38:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:38:58,943 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2019-11-16 00:38:58,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:38:58,943 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2019-11-16 00:38:58,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-16 00:38:58,945 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:38:58,945 INFO L380 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] [2019-11-16 00:38:58,946 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:38:58,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:38:58,947 INFO L82 PathProgramCache]: Analyzing trace with hash 708469066, now seen corresponding path program 1 times [2019-11-16 00:38:58,947 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:38:58,948 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653975406] [2019-11-16 00:38:58,948 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:38:58,948 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:38:58,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:38:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:38:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:38:59,094 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653975406] [2019-11-16 00:38:59,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:38:59,095 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:38:59,095 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101511983] [2019-11-16 00:38:59,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:38:59,096 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:38:59,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:38:59,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:38:59,096 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 5 states. [2019-11-16 00:38:59,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:38:59,252 INFO L93 Difference]: Finished difference Result 242 states and 360 transitions. [2019-11-16 00:38:59,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-16 00:38:59,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-16 00:38:59,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:38:59,255 INFO L225 Difference]: With dead ends: 242 [2019-11-16 00:38:59,255 INFO L226 Difference]: Without dead ends: 203 [2019-11-16 00:38:59,256 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:38:59,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-11-16 00:38:59,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 80. [2019-11-16 00:38:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-16 00:38:59,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2019-11-16 00:38:59,276 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 26 [2019-11-16 00:38:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:38:59,276 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2019-11-16 00:38:59,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:38:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2019-11-16 00:38:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-16 00:38:59,278 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:38:59,278 INFO L380 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] [2019-11-16 00:38:59,278 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:38:59,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:38:59,278 INFO L82 PathProgramCache]: Analyzing trace with hash 99432520, now seen corresponding path program 1 times [2019-11-16 00:38:59,279 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:38:59,282 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343137056] [2019-11-16 00:38:59,282 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:38:59,282 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:38:59,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:39:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:39:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:39:00,534 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:39:00,534 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:39:00,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:39:00 BoogieIcfgContainer [2019-11-16 00:39:00,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:39:00,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:39:00,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:39:00,630 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:39:00,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:58" (3/4) ... [2019-11-16 00:39:00,633 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-16 00:39:00,721 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f7a69dad-c0e4-45e8-a39a-6eb66af8b6d0/bin/uautomizer/witness.graphml [2019-11-16 00:39:00,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:39:00,723 INFO L168 Benchmark]: Toolchain (without parser) took 4229.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 944.7 MB in the beginning and 989.9 MB in the end (delta: -45.2 MB). Peak memory consumption was 138.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:00,723 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:39:00,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -226.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:00,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:00,724 INFO L168 Benchmark]: Boogie Preprocessor took 84.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:39:00,725 INFO L168 Benchmark]: RCFGBuilder took 911.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:00,725 INFO L168 Benchmark]: TraceAbstraction took 2401.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.2 MB). Peak memory consumption was 93.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:00,726 INFO L168 Benchmark]: Witness Printer took 92.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 989.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:00,728 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 633.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -226.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 102.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 911.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2401.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.2 MB). Peak memory consumption was 93.2 MB. Max. memory is 11.5 GB. * Witness Printer took 92.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 989.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 598]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int pumpRunning = 0; [L416] int systemActive = 1; [L672] int waterLevel = 1; [L673] int methaneLevelCritical = 0; [L761] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] int retValue_acc ; [L838] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] tmp = valid_product() [L846] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] int splverifierCounter ; [L608] int tmp ; [L609] int tmp___0 ; [L610] int tmp___1 ; [L611] int tmp___2 ; [L614] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L616] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L618] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L624] tmp = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L690] COND TRUE waterLevel < 2 [L691] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L634] tmp___0 = __VERIFIER_nondet_int() [L636] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L644] tmp___2 = __VERIFIER_nondet_int() [L646] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L423] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L430] COND TRUE \read(systemActive) [L478] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L481] COND FALSE !(\read(pumpRunning)) [L452] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L455] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L861] int tmp ; [L862] int tmp___0 ; [L863] int tmp___1 ; [L711] int retValue_acc ; [L714] retValue_acc = methaneLevelCritical [L715] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) [L743] int retValue_acc ; [L746] retValue_acc = waterLevel [L747] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L873] tmp___0 = getWaterLevel() [L875] COND TRUE tmp___0 == 2 [L530] int retValue_acc ; [L533] retValue_acc = pumpRunning [L534] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L877] tmp___1 = isPumpRunning() [L879] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 384 SDtfs, 400 SDslu, 253 SDs, 0 SdLazy, 50 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 123 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3629 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...