./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/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 a45474bbddd00a02338fe4b16e46d3dadff1b340 .............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 16:01:40,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:01:40,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:01:40,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:01:40,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:01:40,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:01:40,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:01:40,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:01:40,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:01:40,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:01:40,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:01:40,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:01:40,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:01:40,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:01:40,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:01:40,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:01:40,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:01:40,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:01:40,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:01:40,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:01:40,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:01:40,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:01:40,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:01:40,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:01:40,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:01:40,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:01:40,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:01:40,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:01:40,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:01:40,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:01:40,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:01:40,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:01:40,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:01:40,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:01:40,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:01:40,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:01:40,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:01:40,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:01:40,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:01:40,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:01:40,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:01:40,114 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 16:01:40,124 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:01:40,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:01:40,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:01:40,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:01:40,125 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:01:40,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:01:40,125 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:01:40,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:01:40,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:01:40,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:01:40,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:01:40,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:01:40,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:01:40,126 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:01:40,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:01:40,126 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:01:40,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:01:40,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:01:40,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:01:40,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:01:40,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:01:40,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:01:40,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:01:40,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:01:40,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:01:40,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:01:40,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:01:40,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:01:40,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:01:40,128 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_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/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 -> a45474bbddd00a02338fe4b16e46d3dadff1b340 [2019-12-07 16:01:40,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:01:40,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:01:40,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:01:40,241 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:01:40,242 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:01:40,242 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2019-12-07 16:01:40,289 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/data/24ec9fbd4/924c5afcd52e4b95939d352e2533f7e2/FLAG1886ee8e9 [2019-12-07 16:01:40,734 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:01:40,735 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2019-12-07 16:01:40,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/data/24ec9fbd4/924c5afcd52e4b95939d352e2533f7e2/FLAG1886ee8e9 [2019-12-07 16:01:40,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/data/24ec9fbd4/924c5afcd52e4b95939d352e2533f7e2 [2019-12-07 16:01:40,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:01:40,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:01:40,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:01:40,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:01:40,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:01:40,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:01:40" (1/1) ... [2019-12-07 16:01:40,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c28c768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:40, skipping insertion in model container [2019-12-07 16:01:40,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:01:40" (1/1) ... [2019-12-07 16:01:40,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:01:40,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:01:40,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:01:40,993 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:01:41,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:01:41,059 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:01:41,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41 WrapperNode [2019-12-07 16:01:41,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:01:41,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:01:41,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:01:41,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:01:41,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (1/1) ... [2019-12-07 16:01:41,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (1/1) ... [2019-12-07 16:01:41,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:01:41,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:01:41,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:01:41,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:01:41,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (1/1) ... [2019-12-07 16:01:41,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (1/1) ... [2019-12-07 16:01:41,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (1/1) ... [2019-12-07 16:01:41,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (1/1) ... [2019-12-07 16:01:41,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (1/1) ... [2019-12-07 16:01:41,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (1/1) ... [2019-12-07 16:01:41,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (1/1) ... [2019-12-07 16:01:41,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:01:41,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:01:41,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:01:41,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:01:41,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/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 [2019-12-07 16:01:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:01:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 16:01:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:01:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:01:41,505 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:01:41,505 INFO L287 CfgBuilder]: Removed 78 assume(true) statements. [2019-12-07 16:01:41,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:01:41 BoogieIcfgContainer [2019-12-07 16:01:41,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:01:41,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:01:41,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:01:41,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:01:41,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:01:40" (1/3) ... [2019-12-07 16:01:41,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264e90c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:01:41, skipping insertion in model container [2019-12-07 16:01:41,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:41" (2/3) ... [2019-12-07 16:01:41,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264e90c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:01:41, skipping insertion in model container [2019-12-07 16:01:41,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:01:41" (3/3) ... [2019-12-07 16:01:41,511 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2019-12-07 16:01:41,517 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:01:41,521 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 16:01:41,529 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 16:01:41,544 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:01:41,544 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:01:41,545 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:01:41,545 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:01:41,545 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:01:41,545 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:01:41,545 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:01:41,545 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:01:41,556 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2019-12-07 16:01:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 16:01:41,561 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:01:41,561 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:01:41,562 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:01:41,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:01:41,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1390476085, now seen corresponding path program 1 times [2019-12-07 16:01:41,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:01:41,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947998074] [2019-12-07 16:01:41,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:01:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:01:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:01:41,739 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947998074] [2019-12-07 16:01:41,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:01:41,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:01:41,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77372742] [2019-12-07 16:01:41,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:01:41,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:01:41,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:01:41,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:01:41,753 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2019-12-07 16:01:41,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:01:41,769 INFO L93 Difference]: Finished difference Result 124 states and 185 transitions. [2019-12-07 16:01:41,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:01:41,770 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 16:01:41,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:01:41,777 INFO L225 Difference]: With dead ends: 124 [2019-12-07 16:01:41,777 INFO L226 Difference]: Without dead ends: 61 [2019-12-07 16:01:41,779 INFO L630 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 [2019-12-07 16:01:41,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-12-07 16:01:41,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-12-07 16:01:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-12-07 16:01:41,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2019-12-07 16:01:41,805 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2019-12-07 16:01:41,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:01:41,805 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2019-12-07 16:01:41,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:01:41,805 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2019-12-07 16:01:41,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 16:01:41,806 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:01:41,806 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:01:41,806 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:01:41,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:01:41,806 INFO L82 PathProgramCache]: Analyzing trace with hash -963834589, now seen corresponding path program 1 times [2019-12-07 16:01:41,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:01:41,807 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691797345] [2019-12-07 16:01:41,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:01:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:01:41,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:01:41,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691797345] [2019-12-07 16:01:41,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:01:41,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:01:41,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233153928] [2019-12-07 16:01:41,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:01:41,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:01:41,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:01:41,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:01:41,869 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 3 states. [2019-12-07 16:01:41,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:01:41,875 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2019-12-07 16:01:41,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:01:41,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-07 16:01:41,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:01:41,876 INFO L225 Difference]: With dead ends: 61 [2019-12-07 16:01:41,876 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 16:01:41,877 INFO L630 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 [2019-12-07 16:01:41,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 16:01:41,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 16:01:41,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 16:01:41,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2019-12-07 16:01:41,880 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2019-12-07 16:01:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:01:41,881 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2019-12-07 16:01:41,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:01:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2019-12-07 16:01:41,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 16:01:41,881 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:01:41,881 INFO L410 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] [2019-12-07 16:01:41,881 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:01:41,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:01:41,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810197, now seen corresponding path program 1 times [2019-12-07 16:01:41,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:01:41,882 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368725137] [2019-12-07 16:01:41,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:01:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:01:41,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:01:41,927 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368725137] [2019-12-07 16:01:41,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:01:41,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:01:41,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504050739] [2019-12-07 16:01:41,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:01:41,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:01:41,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:01:41,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:01:41,928 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 3 states. [2019-12-07 16:01:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:01:41,949 INFO L93 Difference]: Finished difference Result 81 states and 117 transitions. [2019-12-07 16:01:41,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:01:41,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 16:01:41,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:01:41,950 INFO L225 Difference]: With dead ends: 81 [2019-12-07 16:01:41,950 INFO L226 Difference]: Without dead ends: 56 [2019-12-07 16:01:41,950 INFO L630 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 [2019-12-07 16:01:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-12-07 16:01:41,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2019-12-07 16:01:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 16:01:41,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2019-12-07 16:01:41,956 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2019-12-07 16:01:41,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:01:41,956 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2019-12-07 16:01:41,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:01:41,957 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2019-12-07 16:01:41,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 16:01:41,957 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:01:41,957 INFO L410 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] [2019-12-07 16:01:41,958 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:01:41,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:01:41,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1755761006, now seen corresponding path program 1 times [2019-12-07 16:01:41,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:01:41,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020247251] [2019-12-07 16:01:41,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:01:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:01:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:01:42,005 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020247251] [2019-12-07 16:01:42,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:01:42,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 16:01:42,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018802322] [2019-12-07 16:01:42,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:01:42,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:01:42,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:01:42,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:01:42,006 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 5 states. [2019-12-07 16:01:42,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:01:42,092 INFO L93 Difference]: Finished difference Result 264 states and 404 transitions. [2019-12-07 16:01:42,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:01:42,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-12-07 16:01:42,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:01:42,094 INFO L225 Difference]: With dead ends: 264 [2019-12-07 16:01:42,094 INFO L226 Difference]: Without dead ends: 218 [2019-12-07 16:01:42,095 INFO L630 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 [2019-12-07 16:01:42,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-12-07 16:01:42,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 92. [2019-12-07 16:01:42,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-12-07 16:01:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 131 transitions. [2019-12-07 16:01:42,108 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 131 transitions. Word has length 24 [2019-12-07 16:01:42,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:01:42,108 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 131 transitions. [2019-12-07 16:01:42,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:01:42,108 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 131 transitions. [2019-12-07 16:01:42,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 16:01:42,109 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:01:42,109 INFO L410 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] [2019-12-07 16:01:42,109 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:01:42,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:01:42,109 INFO L82 PathProgramCache]: Analyzing trace with hash 120698128, now seen corresponding path program 1 times [2019-12-07 16:01:42,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:01:42,110 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109430547] [2019-12-07 16:01:42,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:01:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:01:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:01:42,254 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:01:42,254 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:01:42,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:01:42 BoogieIcfgContainer [2019-12-07 16:01:42,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:01:42,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:01:42,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:01:42,324 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:01:42,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:01:41" (3/4) ... [2019-12-07 16:01:42,326 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 16:01:42,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ae25a998-1cfa-4a6d-8b3f-83a672e10ba6/bin/uautomizer/witness.graphml [2019-12-07 16:01:42,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:01:42,403 INFO L168 Benchmark]: Toolchain (without parser) took 1649.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 943.3 MB in the beginning and 924.2 MB in the end (delta: 19.1 MB). Peak memory consumption was 129.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:42,404 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:01:42,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:42,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.57 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:01:42,405 INFO L168 Benchmark]: Boogie Preprocessor took 24.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:42,405 INFO L168 Benchmark]: RCFGBuilder took 382.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:42,406 INFO L168 Benchmark]: TraceAbstraction took 816.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 934.9 MB in the end (delta: 98.0 MB). Peak memory consumption was 98.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:42,406 INFO L168 Benchmark]: Witness Printer took 77.98 ms. Allocated memory is still 1.1 GB. Free memory was 934.9 MB in the beginning and 924.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:42,408 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.57 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 382.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 816.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 934.9 MB in the end (delta: 98.0 MB). Peak memory consumption was 98.0 MB. Max. memory is 11.5 GB. * Witness Printer took 77.98 ms. Allocated memory is still 1.1 GB. Free memory was 934.9 MB in the beginning and 924.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] int retValue_acc ; [L864] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L94] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L96] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) [L301] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L890] __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, 65 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 238 SDtfs, 231 SDslu, 196 SDs, 0 SdLazy, 39 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, 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, 130 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2755 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...