./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/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 72d06b83689108b06d89f4f95641f29fdbb51231 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-20 03:29:42,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:29:42,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:29:42,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:29:42,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:29:42,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:29:42,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:29:42,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:29:42,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:29:42,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:29:42,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:29:42,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:29:42,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:29:42,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:29:42,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:29:42,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:29:42,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:29:42,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:29:42,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:29:42,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:29:42,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:29:42,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:29:42,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:29:42,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:29:42,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:29:42,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:29:42,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:29:42,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:29:42,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:29:42,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:29:42,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:29:42,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:29:42,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:29:42,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:29:42,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:29:42,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:29:42,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:29:42,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:29:42,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:29:42,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:29:42,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:29:42,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 03:29:42,822 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:29:42,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:29:42,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:29:42,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:29:42,824 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:29:42,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:29:42,824 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:29:42,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:29:42,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:29:42,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:29:42,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:29:42,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:29:42,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:29:42,826 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:29:42,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:29:42,827 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:29:42,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:29:42,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:29:42,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:29:42,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:29:42,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:29:42,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:29:42,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:29:42,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:29:42,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:29:42,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:29:42,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:29:42,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:29:42,829 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_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/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 -> 72d06b83689108b06d89f4f95641f29fdbb51231 [2019-11-20 03:29:42,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:29:42,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:29:42,983 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:29:42,984 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:29:42,985 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:29:42,985 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2019-11-20 03:29:43,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/data/d5d7de1bd/df02b5988f2743e5b4d178bad08f24e6/FLAG4dca24611 [2019-11-20 03:29:43,531 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:29:43,535 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2019-11-20 03:29:43,556 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/data/d5d7de1bd/df02b5988f2743e5b4d178bad08f24e6/FLAG4dca24611 [2019-11-20 03:29:44,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/data/d5d7de1bd/df02b5988f2743e5b4d178bad08f24e6 [2019-11-20 03:29:44,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:29:44,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:29:44,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:29:44,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:29:44,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:29:44,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730c989f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44, skipping insertion in model container [2019-11-20 03:29:44,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,073 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:29:44,117 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:29:44,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:29:44,478 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:29:44,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:29:44,595 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:29:44,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44 WrapperNode [2019-11-20 03:29:44,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:29:44,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:29:44,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:29:44,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:29:44,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:29:44,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:29:44,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:29:44,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:29:44,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (1/1) ... [2019-11-20 03:29:44,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:29:44,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:29:44,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:29:44,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:29:44,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/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 [2019-11-20 03:29:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:29:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 03:29:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:29:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:29:45,905 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:29:45,905 INFO L285 CfgBuilder]: Removed 278 assume(true) statements. [2019-11-20 03:29:45,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:29:45 BoogieIcfgContainer [2019-11-20 03:29:45,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:29:45,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:29:45,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:29:45,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:29:45,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:29:44" (1/3) ... [2019-11-20 03:29:45,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7da815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:29:45, skipping insertion in model container [2019-11-20 03:29:45,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:29:44" (2/3) ... [2019-11-20 03:29:45,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7da815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:29:45, skipping insertion in model container [2019-11-20 03:29:45,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:29:45" (3/3) ... [2019-11-20 03:29:45,915 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product54.cil.c [2019-11-20 03:29:45,924 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:29:45,934 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-20 03:29:45,941 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-20 03:29:45,961 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:29:45,961 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 03:29:45,961 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:29:45,961 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:29:45,962 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:29:45,962 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:29:45,962 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:29:45,962 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:29:45,981 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2019-11-20 03:29:45,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 03:29:45,987 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:29:45,987 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:29:45,988 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:29:45,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:29:45,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1439730149, now seen corresponding path program 1 times [2019-11-20 03:29:46,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:29:46,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79315970] [2019-11-20 03:29:46,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:29:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:29:46,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:29:46,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79315970] [2019-11-20 03:29:46,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:29:46,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:29:46,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719735716] [2019-11-20 03:29:46,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 03:29:46,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:29:46,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 03:29:46,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 03:29:46,221 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2019-11-20 03:29:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:29:46,258 INFO L93 Difference]: Finished difference Result 372 states and 569 transitions. [2019-11-20 03:29:46,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 03:29:46,259 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-20 03:29:46,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:29:46,270 INFO L225 Difference]: With dead ends: 372 [2019-11-20 03:29:46,270 INFO L226 Difference]: Without dead ends: 185 [2019-11-20 03:29:46,273 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 [2019-11-20 03:29:46,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-11-20 03:29:46,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2019-11-20 03:29:46,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-11-20 03:29:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2019-11-20 03:29:46,315 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 276 transitions. Word has length 16 [2019-11-20 03:29:46,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:29:46,315 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 276 transitions. [2019-11-20 03:29:46,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 03:29:46,316 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 276 transitions. [2019-11-20 03:29:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 03:29:46,317 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:29:46,317 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:29:46,317 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:29:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:29:46,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1808480250, now seen corresponding path program 1 times [2019-11-20 03:29:46,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:29:46,318 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843694125] [2019-11-20 03:29:46,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:29:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:29:46,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:29:46,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843694125] [2019-11-20 03:29:46,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:29:46,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:29:46,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631217882] [2019-11-20 03:29:46,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:29:46,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:29:46,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:29:46,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:29:46,401 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. Second operand 3 states. [2019-11-20 03:29:46,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:29:46,419 INFO L93 Difference]: Finished difference Result 185 states and 276 transitions. [2019-11-20 03:29:46,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:29:46,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 03:29:46,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:29:46,426 INFO L225 Difference]: With dead ends: 185 [2019-11-20 03:29:46,426 INFO L226 Difference]: Without dead ends: 71 [2019-11-20 03:29:46,427 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 [2019-11-20 03:29:46,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-20 03:29:46,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-11-20 03:29:46,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-20 03:29:46,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2019-11-20 03:29:46,434 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 17 [2019-11-20 03:29:46,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:29:46,435 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2019-11-20 03:29:46,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:29:46,435 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2019-11-20 03:29:46,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 03:29:46,436 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:29:46,436 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] [2019-11-20 03:29:46,436 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:29:46,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:29:46,440 INFO L82 PathProgramCache]: Analyzing trace with hash -886510538, now seen corresponding path program 1 times [2019-11-20 03:29:46,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:29:46,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571495016] [2019-11-20 03:29:46,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:29:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:29:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:29:46,586 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571495016] [2019-11-20 03:29:46,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:29:46,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 03:29:46,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230548240] [2019-11-20 03:29:46,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:29:46,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:29:46,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:29:46,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:29:46,588 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 5 states. [2019-11-20 03:29:46,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:29:46,668 INFO L93 Difference]: Finished difference Result 136 states and 204 transitions. [2019-11-20 03:29:46,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:29:46,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 03:29:46,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:29:46,672 INFO L225 Difference]: With dead ends: 136 [2019-11-20 03:29:46,674 INFO L226 Difference]: Without dead ends: 71 [2019-11-20 03:29:46,676 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:29:46,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-20 03:29:46,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-11-20 03:29:46,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-20 03:29:46,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2019-11-20 03:29:46,689 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 22 [2019-11-20 03:29:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:29:46,690 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2019-11-20 03:29:46,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:29:46,697 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2019-11-20 03:29:46,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 03:29:46,700 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:29:46,700 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] [2019-11-20 03:29:46,701 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:29:46,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:29:46,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1823541737, now seen corresponding path program 1 times [2019-11-20 03:29:46,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:29:46,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302034925] [2019-11-20 03:29:46,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:29:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:29:46,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:29:46,757 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302034925] [2019-11-20 03:29:46,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:29:46,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:29:46,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716740567] [2019-11-20 03:29:46,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:29:46,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:29:46,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:29:46,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:29:46,759 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2019-11-20 03:29:46,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:29:46,809 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2019-11-20 03:29:46,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:29:46,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-11-20 03:29:46,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:29:46,811 INFO L225 Difference]: With dead ends: 145 [2019-11-20 03:29:46,811 INFO L226 Difference]: Without dead ends: 80 [2019-11-20 03:29:46,812 INFO L630 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 [2019-11-20 03:29:46,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-11-20 03:29:46,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2019-11-20 03:29:46,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-20 03:29:46,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2019-11-20 03:29:46,832 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 25 [2019-11-20 03:29:46,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:29:46,834 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2019-11-20 03:29:46,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:29:46,835 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2019-11-20 03:29:46,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 03:29:46,836 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:29:46,836 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, 1, 1, 1, 1, 1, 1] [2019-11-20 03:29:46,836 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:29:46,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:29:46,837 INFO L82 PathProgramCache]: Analyzing trace with hash -920121944, now seen corresponding path program 1 times [2019-11-20 03:29:46,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:29:46,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180912194] [2019-11-20 03:29:46,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:29:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:29:46,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:29:46,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180912194] [2019-11-20 03:29:46,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:29:46,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 03:29:46,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991469286] [2019-11-20 03:29:46,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:29:46,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:29:46,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:29:46,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:29:46,910 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand 5 states. [2019-11-20 03:29:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:29:47,044 INFO L93 Difference]: Finished difference Result 204 states and 285 transitions. [2019-11-20 03:29:47,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:29:47,045 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-20 03:29:47,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:29:47,046 INFO L225 Difference]: With dead ends: 204 [2019-11-20 03:29:47,046 INFO L226 Difference]: Without dead ends: 132 [2019-11-20 03:29:47,047 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:29:47,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-11-20 03:29:47,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2019-11-20 03:29:47,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-20 03:29:47,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2019-11-20 03:29:47,066 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 31 [2019-11-20 03:29:47,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:29:47,066 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2019-11-20 03:29:47,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:29:47,067 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2019-11-20 03:29:47,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 03:29:47,067 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:29:47,068 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, 1, 1, 1, 1, 1, 1] [2019-11-20 03:29:47,068 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:29:47,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:29:47,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1742389099, now seen corresponding path program 1 times [2019-11-20 03:29:47,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:29:47,073 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553133743] [2019-11-20 03:29:47,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:29:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:29:47,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:29:47,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553133743] [2019-11-20 03:29:47,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:29:47,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:29:47,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314063367] [2019-11-20 03:29:47,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:29:47,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:29:47,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:29:47,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:29:47,185 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand 5 states. [2019-11-20 03:29:47,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:29:47,338 INFO L93 Difference]: Finished difference Result 250 states and 344 transitions. [2019-11-20 03:29:47,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 03:29:47,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-20 03:29:47,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:29:47,341 INFO L225 Difference]: With dead ends: 250 [2019-11-20 03:29:47,341 INFO L226 Difference]: Without dead ends: 248 [2019-11-20 03:29:47,341 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 03:29:47,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2019-11-20 03:29:47,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 87. [2019-11-20 03:29:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-20 03:29:47,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2019-11-20 03:29:47,354 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 31 [2019-11-20 03:29:47,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:29:47,354 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2019-11-20 03:29:47,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:29:47,355 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2019-11-20 03:29:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 03:29:47,356 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:29:47,356 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, 1, 1, 1, 1, 1, 1] [2019-11-20 03:29:47,356 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:29:47,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:29:47,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1313148954, now seen corresponding path program 1 times [2019-11-20 03:29:47,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:29:47,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341563129] [2019-11-20 03:29:47,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:29:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:29:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:29:47,433 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341563129] [2019-11-20 03:29:47,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:29:47,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:29:47,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817659433] [2019-11-20 03:29:47,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 03:29:47,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:29:47,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:29:47,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:29:47,435 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand 4 states. [2019-11-20 03:29:47,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:29:47,522 INFO L93 Difference]: Finished difference Result 204 states and 276 transitions. [2019-11-20 03:29:47,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 03:29:47,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-20 03:29:47,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:29:47,523 INFO L225 Difference]: With dead ends: 204 [2019-11-20 03:29:47,524 INFO L226 Difference]: Without dead ends: 123 [2019-11-20 03:29:47,524 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:29:47,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-11-20 03:29:47,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 93. [2019-11-20 03:29:47,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-20 03:29:47,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 124 transitions. [2019-11-20 03:29:47,533 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 124 transitions. Word has length 31 [2019-11-20 03:29:47,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:29:47,534 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 124 transitions. [2019-11-20 03:29:47,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 03:29:47,534 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 124 transitions. [2019-11-20 03:29:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 03:29:47,535 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:29:47,535 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, 1, 1, 1, 1, 1, 1] [2019-11-20 03:29:47,535 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:29:47,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:29:47,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1054983516, now seen corresponding path program 1 times [2019-11-20 03:29:47,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:29:47,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782122646] [2019-11-20 03:29:47,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:29:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:29:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:29:47,576 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782122646] [2019-11-20 03:29:47,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:29:47,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:29:47,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904145418] [2019-11-20 03:29:47,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:29:47,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:29:47,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:29:47,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:29:47,578 INFO L87 Difference]: Start difference. First operand 93 states and 124 transitions. Second operand 3 states. [2019-11-20 03:29:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:29:47,601 INFO L93 Difference]: Finished difference Result 207 states and 277 transitions. [2019-11-20 03:29:47,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:29:47,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-11-20 03:29:47,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:29:47,606 INFO L225 Difference]: With dead ends: 207 [2019-11-20 03:29:47,607 INFO L226 Difference]: Without dead ends: 120 [2019-11-20 03:29:47,607 INFO L630 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 [2019-11-20 03:29:47,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-20 03:29:47,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-11-20 03:29:47,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-20 03:29:47,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 157 transitions. [2019-11-20 03:29:47,630 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 157 transitions. Word has length 31 [2019-11-20 03:29:47,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:29:47,630 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 157 transitions. [2019-11-20 03:29:47,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:29:47,630 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 157 transitions. [2019-11-20 03:29:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 03:29:47,633 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:29:47,633 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:29:47,633 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:29:47,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:29:47,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1127223910, now seen corresponding path program 1 times [2019-11-20 03:29:47,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:29:47,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809764491] [2019-11-20 03:29:47,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:29:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:29:47,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:29:47,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809764491] [2019-11-20 03:29:47,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:29:47,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:29:47,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833473584] [2019-11-20 03:29:47,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:29:47,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:29:47,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:29:47,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:29:47,786 INFO L87 Difference]: Start difference. First operand 120 states and 157 transitions. Second operand 5 states. [2019-11-20 03:29:47,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:29:47,928 INFO L93 Difference]: Finished difference Result 615 states and 812 transitions. [2019-11-20 03:29:47,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 03:29:47,928 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-20 03:29:47,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:29:47,932 INFO L225 Difference]: With dead ends: 615 [2019-11-20 03:29:47,932 INFO L226 Difference]: Without dead ends: 501 [2019-11-20 03:29:47,933 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 03:29:47,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-11-20 03:29:47,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 226. [2019-11-20 03:29:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-11-20 03:29:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 294 transitions. [2019-11-20 03:29:47,958 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 294 transitions. Word has length 32 [2019-11-20 03:29:47,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:29:47,959 INFO L462 AbstractCegarLoop]: Abstraction has 226 states and 294 transitions. [2019-11-20 03:29:47,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:29:47,959 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 294 transitions. [2019-11-20 03:29:47,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 03:29:47,965 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:29:47,965 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:29:47,965 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:29:47,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:29:47,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1518924332, now seen corresponding path program 1 times [2019-11-20 03:29:47,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:29:47,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291282614] [2019-11-20 03:29:47,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:29:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:29:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:29:48,127 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:29:48,127 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 03:29:48,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:29:48 BoogieIcfgContainer [2019-11-20 03:29:48,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:29:48,241 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:29:48,241 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:29:48,241 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:29:48,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:29:45" (3/4) ... [2019-11-20 03:29:48,244 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 03:29:48,374 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3b4f7b0d-2f08-48a7-a3f1-79b63c629c61/bin/uautomizer/witness.graphml [2019-11-20 03:29:48,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:29:48,376 INFO L168 Benchmark]: Toolchain (without parser) took 4315.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -65.4 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. [2019-11-20 03:29:48,376 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-20 03:29:48,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:29:48,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:29:48,377 INFO L168 Benchmark]: Boogie Preprocessor took 85.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:29:48,378 INFO L168 Benchmark]: RCFGBuilder took 1140.57 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: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:29:48,378 INFO L168 Benchmark]: TraceAbstraction took 2333.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:29:48,378 INFO L168 Benchmark]: Witness Printer took 133.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:29:48,380 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 535.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1140.57 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: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2333.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. * Witness Printer took 133.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 216]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L691] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L889] int waterLevel = 1; [L890] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L487] int retValue_acc ; [L490] retValue_acc = 1 [L491] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L146] int splverifierCounter ; [L147] int tmp ; [L148] int tmp___0 ; [L149] int tmp___1 ; [L150] int tmp___2 ; [L153] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L155] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L163] tmp = __VERIFIER_nondet_int() [L165] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L907] COND TRUE waterLevel < 2 [L908] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L919] COND FALSE !(\read(methaneLevelCritical)) [L922] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) [L456] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L237] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L244] COND TRUE \read(systemActive) [L318] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L321] COND FALSE !(\read(pumpRunning)) [L292] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L295] COND FALSE !(\read(pumpRunning)) [L266] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L269] COND TRUE ! pumpRunning [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; [L969] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L972] COND FALSE !(waterLevel < 2) [L976] retValue_acc = 0 [L977] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L421] tmp = isHighWaterSensorDry() [L423] COND FALSE !(\read(tmp)) [L426] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L271] tmp = isHighWaterLevel() [L273] COND TRUE \read(tmp) [L346] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L497] int tmp ; [L498] int tmp___0 ; [L928] int retValue_acc ; [L931] retValue_acc = methaneLevelCritical [L932] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L502] tmp = isMethaneLevelCritical() [L504] COND TRUE \read(tmp) [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L506] tmp___0 = isPumpRunning() [L508] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L216] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 189 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1137 SDtfs, 1314 SDslu, 1238 SDs, 0 SdLazy, 197 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 513 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 15647 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...