./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.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_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/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 0e04f2515dd5c7ce697460622800d33932bf1903 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/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 0e04f2515dd5c7ce697460622800d33932bf1903 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:49:10,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:49:10,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:49:10,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:49:10,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:49:10,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:49:10,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:49:10,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:49:10,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:49:10,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:49:10,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:49:10,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:49:10,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:49:10,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:49:10,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:49:10,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:49:10,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:49:10,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:49:10,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:49:10,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:49:10,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:49:10,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:49:10,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:49:10,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:49:10,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:49:10,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:49:10,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:49:10,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:49:10,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:49:10,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:49:10,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:49:10,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:49:10,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:49:10,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:49:10,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:49:10,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:49:10,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:49:10,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:49:10,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:49:10,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:49:10,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:49:10,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 12:49:10,815 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:49:10,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:49:10,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:49:10,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:49:10,816 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:49:10,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:49:10,817 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:49:10,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:49:10,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:49:10,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:49:10,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:49:10,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:49:10,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:49:10,817 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:49:10,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:49:10,817 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:49:10,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:49:10,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:49:10,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:49:10,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:49:10,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:49:10,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:49:10,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:49:10,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:49:10,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:49:10,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:49:10,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:49:10,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:49:10,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:49:10,819 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_9a471169-eb63-4806-a799-93fb6f26635c/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 -> 0e04f2515dd5c7ce697460622800d33932bf1903 [2019-12-07 12:49:10,921 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:49:10,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:49:10,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:49:10,933 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:49:10,933 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:49:10,934 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-12-07 12:49:10,973 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/data/4ef645938/f9e8f536aa784f208b72eb7623be6a94/FLAG0db724b8b [2019-12-07 12:49:11,327 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:49:11,327 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-12-07 12:49:11,333 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/data/4ef645938/f9e8f536aa784f208b72eb7623be6a94/FLAG0db724b8b [2019-12-07 12:49:11,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/data/4ef645938/f9e8f536aa784f208b72eb7623be6a94 [2019-12-07 12:49:11,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:49:11,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:49:11,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:49:11,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:49:11,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:49:11,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a684a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11, skipping insertion in model container [2019-12-07 12:49:11,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:49:11,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:49:11,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:49:11,544 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:49:11,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:49:11,581 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:49:11,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11 WrapperNode [2019-12-07 12:49:11,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:49:11,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:49:11,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:49:11,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:49:11,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:49:11,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:49:11,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:49:11,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:49:11,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (1/1) ... [2019-12-07 12:49:11,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:49:11,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:49:11,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:49:11,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:49:11,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/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 12:49:11,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:49:11,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:49:11,947 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:49:11,947 INFO L287 CfgBuilder]: Removed 30 assume(true) statements. [2019-12-07 12:49:11,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:11 BoogieIcfgContainer [2019-12-07 12:49:11,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:49:11,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:49:11,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:49:11,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:49:11,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:49:11" (1/3) ... [2019-12-07 12:49:11,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46be7962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:11, skipping insertion in model container [2019-12-07 12:49:11,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:11" (2/3) ... [2019-12-07 12:49:11,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46be7962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:11, skipping insertion in model container [2019-12-07 12:49:11,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:11" (3/3) ... [2019-12-07 12:49:11,954 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2019-12-07 12:49:11,960 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:49:11,965 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-12-07 12:49:11,972 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-07 12:49:11,987 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:49:11,987 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:49:11,987 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:49:11,987 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:49:11,987 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:49:11,987 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:49:11,987 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:49:11,988 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:49:12,000 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-12-07 12:49:12,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 12:49:12,004 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:12,004 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:49:12,004 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:12,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:12,008 INFO L82 PathProgramCache]: Analyzing trace with hash 934616753, now seen corresponding path program 1 times [2019-12-07 12:49:12,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:49:12,014 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733577212] [2019-12-07 12:49:12,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:49:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:12,241 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 12:49:12,241 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733577212] [2019-12-07 12:49:12,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:12,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-07 12:49:12,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592150918] [2019-12-07 12:49:12,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:49:12,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:49:12,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:49:12,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:49:12,262 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 8 states. [2019-12-07 12:49:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:13,541 INFO L93 Difference]: Finished difference Result 454 states and 688 transitions. [2019-12-07 12:49:13,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 12:49:13,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-12-07 12:49:13,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:13,556 INFO L225 Difference]: With dead ends: 454 [2019-12-07 12:49:13,556 INFO L226 Difference]: Without dead ends: 337 [2019-12-07 12:49:13,559 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2019-12-07 12:49:13,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2019-12-07 12:49:13,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 133. [2019-12-07 12:49:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-12-07 12:49:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 191 transitions. [2019-12-07 12:49:13,609 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 191 transitions. Word has length 17 [2019-12-07 12:49:13,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:13,610 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 191 transitions. [2019-12-07 12:49:13,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:49:13,610 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 191 transitions. [2019-12-07 12:49:13,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 12:49:13,611 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:13,611 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:49:13,612 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:13,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:13,612 INFO L82 PathProgramCache]: Analyzing trace with hash 934676335, now seen corresponding path program 1 times [2019-12-07 12:49:13,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:49:13,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165622434] [2019-12-07 12:49:13,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:49:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:13,715 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 12:49:13,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165622434] [2019-12-07 12:49:13,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:13,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 12:49:13,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870510802] [2019-12-07 12:49:13,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:49:13,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:49:13,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:49:13,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:49:13,717 INFO L87 Difference]: Start difference. First operand 133 states and 191 transitions. Second operand 7 states. [2019-12-07 12:49:13,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:13,860 INFO L93 Difference]: Finished difference Result 288 states and 410 transitions. [2019-12-07 12:49:13,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 12:49:13,861 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-12-07 12:49:13,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:13,862 INFO L225 Difference]: With dead ends: 288 [2019-12-07 12:49:13,863 INFO L226 Difference]: Without dead ends: 204 [2019-12-07 12:49:13,864 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-07 12:49:13,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-12-07 12:49:13,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 193. [2019-12-07 12:49:13,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-12-07 12:49:13,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 274 transitions. [2019-12-07 12:49:13,877 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 274 transitions. Word has length 17 [2019-12-07 12:49:13,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:13,877 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 274 transitions. [2019-12-07 12:49:13,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:49:13,877 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 274 transitions. [2019-12-07 12:49:13,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 12:49:13,878 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:13,878 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] [2019-12-07 12:49:13,879 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:13,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:13,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1341099622, now seen corresponding path program 1 times [2019-12-07 12:49:13,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:49:13,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842321734] [2019-12-07 12:49:13,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:49:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:14,002 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 12:49:14,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842321734] [2019-12-07 12:49:14,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:14,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-07 12:49:14,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386672875] [2019-12-07 12:49:14,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:49:14,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:49:14,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:49:14,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:49:14,003 INFO L87 Difference]: Start difference. First operand 193 states and 274 transitions. Second operand 8 states. [2019-12-07 12:49:14,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:14,276 INFO L93 Difference]: Finished difference Result 304 states and 404 transitions. [2019-12-07 12:49:14,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 12:49:14,277 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-12-07 12:49:14,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:14,279 INFO L225 Difference]: With dead ends: 304 [2019-12-07 12:49:14,279 INFO L226 Difference]: Without dead ends: 256 [2019-12-07 12:49:14,280 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2019-12-07 12:49:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-12-07 12:49:14,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 182. [2019-12-07 12:49:14,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-12-07 12:49:14,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 256 transitions. [2019-12-07 12:49:14,304 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 256 transitions. Word has length 21 [2019-12-07 12:49:14,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:14,304 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 256 transitions. [2019-12-07 12:49:14,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:49:14,304 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 256 transitions. [2019-12-07 12:49:14,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:49:14,306 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:14,306 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 12:49:14,306 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:14,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:14,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1901024439, now seen corresponding path program 1 times [2019-12-07 12:49:14,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:49:14,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451534976] [2019-12-07 12:49:14,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:49:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:14,335 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 12:49:14,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451534976] [2019-12-07 12:49:14,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:14,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:49:14,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512684343] [2019-12-07 12:49:14,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:49:14,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:49:14,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:49:14,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:49:14,337 INFO L87 Difference]: Start difference. First operand 182 states and 256 transitions. Second operand 3 states. [2019-12-07 12:49:14,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:14,356 INFO L93 Difference]: Finished difference Result 336 states and 472 transitions. [2019-12-07 12:49:14,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:49:14,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 12:49:14,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:14,358 INFO L225 Difference]: With dead ends: 336 [2019-12-07 12:49:14,358 INFO L226 Difference]: Without dead ends: 261 [2019-12-07 12:49:14,359 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 12:49:14,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-12-07 12:49:14,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 232. [2019-12-07 12:49:14,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-12-07 12:49:14,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 321 transitions. [2019-12-07 12:49:14,371 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 321 transitions. Word has length 25 [2019-12-07 12:49:14,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:14,372 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 321 transitions. [2019-12-07 12:49:14,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:49:14,372 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 321 transitions. [2019-12-07 12:49:14,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:49:14,373 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:14,373 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 12:49:14,374 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:14,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:14,374 INFO L82 PathProgramCache]: Analyzing trace with hash 186737553, now seen corresponding path program 1 times [2019-12-07 12:49:14,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:49:14,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338411907] [2019-12-07 12:49:14,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:49:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:14,447 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 12:49:14,448 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338411907] [2019-12-07 12:49:14,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:14,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:49:14,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47961730] [2019-12-07 12:49:14,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:49:14,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:49:14,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:49:14,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:49:14,449 INFO L87 Difference]: Start difference. First operand 232 states and 321 transitions. Second operand 6 states. [2019-12-07 12:49:14,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:14,549 INFO L93 Difference]: Finished difference Result 358 states and 490 transitions. [2019-12-07 12:49:14,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:49:14,550 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-07 12:49:14,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:14,551 INFO L225 Difference]: With dead ends: 358 [2019-12-07 12:49:14,551 INFO L226 Difference]: Without dead ends: 193 [2019-12-07 12:49:14,552 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:49:14,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-12-07 12:49:14,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 182. [2019-12-07 12:49:14,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-12-07 12:49:14,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 248 transitions. [2019-12-07 12:49:14,561 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 248 transitions. Word has length 25 [2019-12-07 12:49:14,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:14,561 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 248 transitions. [2019-12-07 12:49:14,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:49:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 248 transitions. [2019-12-07 12:49:14,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 12:49:14,563 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:14,563 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] [2019-12-07 12:49:14,563 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:14,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:14,563 INFO L82 PathProgramCache]: Analyzing trace with hash -873114857, now seen corresponding path program 1 times [2019-12-07 12:49:14,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:49:14,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046561918] [2019-12-07 12:49:14,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:49:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:14,595 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 12:49:14,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046561918] [2019-12-07 12:49:14,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:14,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:49:14,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132856295] [2019-12-07 12:49:14,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:49:14,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:49:14,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:49:14,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:49:14,597 INFO L87 Difference]: Start difference. First operand 182 states and 248 transitions. Second operand 5 states. [2019-12-07 12:49:14,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:14,647 INFO L93 Difference]: Finished difference Result 313 states and 430 transitions. [2019-12-07 12:49:14,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:49:14,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-07 12:49:14,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:14,649 INFO L225 Difference]: With dead ends: 313 [2019-12-07 12:49:14,649 INFO L226 Difference]: Without dead ends: 238 [2019-12-07 12:49:14,650 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:49:14,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-12-07 12:49:14,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 190. [2019-12-07 12:49:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-12-07 12:49:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 252 transitions. [2019-12-07 12:49:14,659 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 252 transitions. Word has length 29 [2019-12-07 12:49:14,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:14,660 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 252 transitions. [2019-12-07 12:49:14,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:49:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 252 transitions. [2019-12-07 12:49:14,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 12:49:14,661 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:14,661 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] [2019-12-07 12:49:14,661 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:14,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:14,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1737423153, now seen corresponding path program 1 times [2019-12-07 12:49:14,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:49:14,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718106630] [2019-12-07 12:49:14,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:49:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:49:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:49:14,738 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:49:14,738 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:49:14,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:49:14 BoogieIcfgContainer [2019-12-07 12:49:14,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:49:14,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:49:14,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:49:14,760 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:49:14,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:11" (3/4) ... [2019-12-07 12:49:14,763 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:49:14,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:49:14,765 INFO L168 Benchmark]: Toolchain (without parser) took 3420.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 940.7 MB in the beginning and 1.0 GB in the end (delta: -66.5 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:14,765 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:49:14,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:14,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.96 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 12:49:14,766 INFO L168 Benchmark]: Boogie Preprocessor took 21.94 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 12:49:14,766 INFO L168 Benchmark]: RCFGBuilder took 314.46 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:14,767 INFO L168 Benchmark]: TraceAbstraction took 2810.74 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: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:14,767 INFO L168 Benchmark]: Witness Printer took 3.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:49:14,769 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.96 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 21.94 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. * RCFGBuilder took 314.46 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2810.74 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: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 100, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add ; [L223] unsigned int zero ; [L224] int sa ; [L225] int sb ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L230] int tmp___3 ; [L231] int tmp___4 ; [L232] int tmp___5 ; [L233] int tmp___6 ; [L234] int tmp___7 ; [L235] int tmp___8 ; [L236] int tmp___9 ; [L237] int __retres23 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L241] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L242] a = base2flt(ma, ea) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L243] b = base2flt(mb, eb) [L245] COND FALSE !(a < zero) [L248] COND TRUE a > zero [L249] tmp = 1 [L253] sa = tmp [L255] COND FALSE !(b < zero) [L258] COND TRUE b > zero [L259] tmp___0 = 1 [L263] sb = tmp___0 [L74] unsigned int res ; [L75] unsigned int ma ; [L76] unsigned int mb ; [L77] unsigned int delta ; [L78] int ea ; [L79] int eb ; [L80] unsigned int tmp ; [L81] unsigned int __retres10 ; [L84] COND TRUE a < b [L85] tmp = a [L86] a = b [L87] b = tmp [L91] COND FALSE !(! b) [L98] ma = a & ((1U << 24U) - 1U) [L99] ea = (int )(a >> 24U) - 128 [L100] ma = ma | (1U << 24U) [L101] mb = b & ((1U << 24U) - 1U) [L102] eb = (int )(b >> 24U) - 128 [L103] mb = mb | (1U << 24U) [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 6 error locations. Result: UNSAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 680 SDtfs, 2059 SDslu, 2424 SDs, 0 SdLazy, 601 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 377 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 12000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 12:49:16,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:49:16,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:49:16,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:49:16,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:49:16,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:49:16,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:49:16,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:49:16,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:49:16,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:49:16,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:49:16,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:49:16,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:49:16,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:49:16,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:49:16,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:49:16,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:49:16,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:49:16,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:49:16,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:49:16,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:49:16,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:49:16,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:49:16,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:49:16,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:49:16,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:49:16,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:49:16,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:49:16,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:49:16,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:49:16,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:49:16,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:49:16,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:49:16,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:49:16,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:49:16,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:49:16,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:49:16,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:49:16,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:49:16,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:49:16,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:49:16,143 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 12:49:16,156 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:49:16,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:49:16,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:49:16,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:49:16,158 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:49:16,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:49:16,159 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:49:16,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:49:16,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:49:16,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:49:16,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:49:16,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:49:16,160 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:49:16,160 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:49:16,160 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:49:16,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:49:16,160 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:49:16,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:49:16,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:49:16,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:49:16,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:49:16,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:49:16,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:49:16,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:49:16,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:49:16,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:49:16,162 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 12:49:16,163 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:49:16,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:49:16,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:49:16,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:49:16,163 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_9a471169-eb63-4806-a799-93fb6f26635c/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 -> 0e04f2515dd5c7ce697460622800d33932bf1903 [2019-12-07 12:49:16,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:49:16,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:49:16,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:49:16,371 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:49:16,371 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:49:16,372 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-12-07 12:49:16,410 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/data/5bb276001/ffadf98d4bc848818b06fe62dfb8299a/FLAGf42c73e13 [2019-12-07 12:49:16,767 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:49:16,767 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-12-07 12:49:16,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/data/5bb276001/ffadf98d4bc848818b06fe62dfb8299a/FLAGf42c73e13 [2019-12-07 12:49:16,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/data/5bb276001/ffadf98d4bc848818b06fe62dfb8299a [2019-12-07 12:49:16,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:49:16,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:49:16,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:49:16,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:49:16,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:49:16,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:16" (1/1) ... [2019-12-07 12:49:16,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@185e116d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:16, skipping insertion in model container [2019-12-07 12:49:16,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:16" (1/1) ... [2019-12-07 12:49:16,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:49:16,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:49:16,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:49:16,952 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:49:17,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:49:17,022 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:49:17,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17 WrapperNode [2019-12-07 12:49:17,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:49:17,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:49:17,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:49:17,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:49:17,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (1/1) ... [2019-12-07 12:49:17,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (1/1) ... [2019-12-07 12:49:17,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:49:17,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:49:17,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:49:17,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:49:17,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (1/1) ... [2019-12-07 12:49:17,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (1/1) ... [2019-12-07 12:49:17,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (1/1) ... [2019-12-07 12:49:17,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (1/1) ... [2019-12-07 12:49:17,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (1/1) ... [2019-12-07 12:49:17,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (1/1) ... [2019-12-07 12:49:17,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (1/1) ... [2019-12-07 12:49:17,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:49:17,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:49:17,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:49:17,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:49:17,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/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 12:49:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:49:17,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:49:17,429 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:49:17,429 INFO L287 CfgBuilder]: Removed 30 assume(true) statements. [2019-12-07 12:49:17,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:17 BoogieIcfgContainer [2019-12-07 12:49:17,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:49:17,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:49:17,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:49:17,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:49:17,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:49:16" (1/3) ... [2019-12-07 12:49:17,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fefe04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:17, skipping insertion in model container [2019-12-07 12:49:17,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:17" (2/3) ... [2019-12-07 12:49:17,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fefe04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:17, skipping insertion in model container [2019-12-07 12:49:17,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:17" (3/3) ... [2019-12-07 12:49:17,435 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2019-12-07 12:49:17,442 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:49:17,446 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-12-07 12:49:17,454 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-07 12:49:17,469 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:49:17,470 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:49:17,470 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:49:17,470 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:49:17,470 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:49:17,470 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:49:17,470 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:49:17,470 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:49:17,482 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-12-07 12:49:17,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 12:49:17,486 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:17,486 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:49:17,486 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:17,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:17,490 INFO L82 PathProgramCache]: Analyzing trace with hash 934616753, now seen corresponding path program 1 times [2019-12-07 12:49:17,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:17,498 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607986444] [2019-12-07 12:49:17,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:17,547 INFO L264 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:49:17,551 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:17,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:49:17,586 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:17,603 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 12:49:17,603 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607986444] [2019-12-07 12:49:17,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:17,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 12:49:17,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226392240] [2019-12-07 12:49:17,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:49:17,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:17,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:49:17,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:49:17,618 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 5 states. [2019-12-07 12:49:17,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:17,772 INFO L93 Difference]: Finished difference Result 396 states and 606 transitions. [2019-12-07 12:49:17,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:49:17,773 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 12:49:17,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:17,784 INFO L225 Difference]: With dead ends: 396 [2019-12-07 12:49:17,784 INFO L226 Difference]: Without dead ends: 294 [2019-12-07 12:49:17,787 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:49:17,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-12-07 12:49:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 119. [2019-12-07 12:49:17,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-12-07 12:49:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2019-12-07 12:49:17,831 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 171 transitions. Word has length 17 [2019-12-07 12:49:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:17,832 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 171 transitions. [2019-12-07 12:49:17,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:49:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 171 transitions. [2019-12-07 12:49:17,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 12:49:17,833 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:17,833 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] [2019-12-07 12:49:18,034 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:49:18,035 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:18,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:18,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1603282001, now seen corresponding path program 1 times [2019-12-07 12:49:18,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:18,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618718983] [2019-12-07 12:49:18,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:18,112 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:49:18,114 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:18,128 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 12:49:18,128 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:18,138 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 12:49:18,138 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618718983] [2019-12-07 12:49:18,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:18,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 12:49:18,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987319776] [2019-12-07 12:49:18,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:49:18,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:18,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:49:18,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:49:18,141 INFO L87 Difference]: Start difference. First operand 119 states and 171 transitions. Second operand 5 states. [2019-12-07 12:49:18,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:18,287 INFO L93 Difference]: Finished difference Result 393 states and 542 transitions. [2019-12-07 12:49:18,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:49:18,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-12-07 12:49:18,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:18,290 INFO L225 Difference]: With dead ends: 393 [2019-12-07 12:49:18,290 INFO L226 Difference]: Without dead ends: 336 [2019-12-07 12:49:18,291 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:49:18,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-12-07 12:49:18,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 185. [2019-12-07 12:49:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-12-07 12:49:18,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 268 transitions. [2019-12-07 12:49:18,307 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 268 transitions. Word has length 21 [2019-12-07 12:49:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:18,307 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 268 transitions. [2019-12-07 12:49:18,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:49:18,308 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 268 transitions. [2019-12-07 12:49:18,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 12:49:18,309 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:18,309 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] [2019-12-07 12:49:18,509 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:49:18,510 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:18,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:18,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1210254991, now seen corresponding path program 1 times [2019-12-07 12:49:18,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:18,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358376194] [2019-12-07 12:49:18,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:18,621 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:49:18,623 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:18,640 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 12:49:18,640 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:18,653 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 12:49:18,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358376194] [2019-12-07 12:49:18,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:18,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 12:49:18,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426495754] [2019-12-07 12:49:18,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:49:18,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:18,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:49:18,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:49:18,654 INFO L87 Difference]: Start difference. First operand 185 states and 268 transitions. Second operand 5 states. [2019-12-07 12:49:18,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:18,748 INFO L93 Difference]: Finished difference Result 377 states and 534 transitions. [2019-12-07 12:49:18,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:49:18,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-12-07 12:49:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:18,750 INFO L225 Difference]: With dead ends: 377 [2019-12-07 12:49:18,750 INFO L226 Difference]: Without dead ends: 294 [2019-12-07 12:49:18,751 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:49:18,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-12-07 12:49:18,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 277. [2019-12-07 12:49:18,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-12-07 12:49:18,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 400 transitions. [2019-12-07 12:49:18,766 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 400 transitions. Word has length 21 [2019-12-07 12:49:18,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:18,767 INFO L462 AbstractCegarLoop]: Abstraction has 277 states and 400 transitions. [2019-12-07 12:49:18,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:49:18,767 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 400 transitions. [2019-12-07 12:49:18,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 12:49:18,768 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:18,768 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] [2019-12-07 12:49:18,969 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:49:18,970 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:18,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1309704943, now seen corresponding path program 1 times [2019-12-07 12:49:18,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:18,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993415428] [2019-12-07 12:49:18,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:19,083 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 12:49:19,085 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:19,110 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 12:49:19,111 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:19,122 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 12:49:19,122 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993415428] [2019-12-07 12:49:19,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:19,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-12-07 12:49:19,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594027751] [2019-12-07 12:49:19,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:49:19,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:19,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:49:19,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:49:19,123 INFO L87 Difference]: Start difference. First operand 277 states and 400 transitions. Second operand 6 states. [2019-12-07 12:49:19,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:19,242 INFO L93 Difference]: Finished difference Result 394 states and 552 transitions. [2019-12-07 12:49:19,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:49:19,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-12-07 12:49:19,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:19,244 INFO L225 Difference]: With dead ends: 394 [2019-12-07 12:49:19,244 INFO L226 Difference]: Without dead ends: 317 [2019-12-07 12:49:19,245 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:49:19,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2019-12-07 12:49:19,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 257. [2019-12-07 12:49:19,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2019-12-07 12:49:19,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 364 transitions. [2019-12-07 12:49:19,260 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 364 transitions. Word has length 21 [2019-12-07 12:49:19,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:19,261 INFO L462 AbstractCegarLoop]: Abstraction has 257 states and 364 transitions. [2019-12-07 12:49:19,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:49:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 364 transitions. [2019-12-07 12:49:19,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 12:49:19,262 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:19,262 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 12:49:19,463 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 12:49:19,464 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:19,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:19,466 INFO L82 PathProgramCache]: Analyzing trace with hash -610901190, now seen corresponding path program 1 times [2019-12-07 12:49:19,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:19,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636183160] [2019-12-07 12:49:19,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:19,557 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 12:49:19,559 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:19,598 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 12:49:19,599 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:19,604 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 12:49:19,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636183160] [2019-12-07 12:49:19,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:19,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-12-07 12:49:19,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282698132] [2019-12-07 12:49:19,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:49:19,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:19,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:49:19,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:49:19,607 INFO L87 Difference]: Start difference. First operand 257 states and 364 transitions. Second operand 7 states. [2019-12-07 12:49:19,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:19,816 INFO L93 Difference]: Finished difference Result 401 states and 540 transitions. [2019-12-07 12:49:19,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 12:49:19,817 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2019-12-07 12:49:19,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:19,818 INFO L225 Difference]: With dead ends: 401 [2019-12-07 12:49:19,818 INFO L226 Difference]: Without dead ends: 353 [2019-12-07 12:49:19,819 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2019-12-07 12:49:19,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2019-12-07 12:49:19,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 247. [2019-12-07 12:49:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-12-07 12:49:19,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2019-12-07 12:49:19,828 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 25 [2019-12-07 12:49:19,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:19,828 INFO L462 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2019-12-07 12:49:19,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:49:19,829 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2019-12-07 12:49:19,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 12:49:19,829 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:19,830 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] [2019-12-07 12:49:20,030 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 12:49:20,031 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:20,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:20,032 INFO L82 PathProgramCache]: Analyzing trace with hash -873114857, now seen corresponding path program 1 times [2019-12-07 12:49:20,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:20,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266247030] [2019-12-07 12:49:20,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:20,150 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:49:20,152 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:20,163 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 12:49:20,164 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:20,177 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 12:49:20,177 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266247030] [2019-12-07 12:49:20,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:20,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 12:49:20,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177050588] [2019-12-07 12:49:20,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:49:20,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:20,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:49:20,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:49:20,185 INFO L87 Difference]: Start difference. First operand 247 states and 347 transitions. Second operand 6 states. [2019-12-07 12:49:20,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:20,217 INFO L93 Difference]: Finished difference Result 455 states and 634 transitions. [2019-12-07 12:49:20,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:49:20,218 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2019-12-07 12:49:20,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:20,219 INFO L225 Difference]: With dead ends: 455 [2019-12-07 12:49:20,219 INFO L226 Difference]: Without dead ends: 380 [2019-12-07 12:49:20,220 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:49:20,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2019-12-07 12:49:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 309. [2019-12-07 12:49:20,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-12-07 12:49:20,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 422 transitions. [2019-12-07 12:49:20,229 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 422 transitions. Word has length 29 [2019-12-07 12:49:20,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:20,229 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 422 transitions. [2019-12-07 12:49:20,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:49:20,229 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 422 transitions. [2019-12-07 12:49:20,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 12:49:20,230 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:20,230 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] [2019-12-07 12:49:20,431 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 12:49:20,432 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:20,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:20,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1737423153, now seen corresponding path program 1 times [2019-12-07 12:49:20,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:20,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664765449] [2019-12-07 12:49:20,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:20,519 INFO L264 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 12:49:20,521 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:20,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:49:20,538 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 12:49:20,538 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:20,556 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 12:49:20,557 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664765449] [2019-12-07 12:49:20,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:20,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 12:49:20,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69197763] [2019-12-07 12:49:20,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:49:20,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:20,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:49:20,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:49:20,558 INFO L87 Difference]: Start difference. First operand 309 states and 422 transitions. Second operand 6 states. [2019-12-07 12:49:20,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:20,675 INFO L93 Difference]: Finished difference Result 456 states and 627 transitions. [2019-12-07 12:49:20,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:49:20,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2019-12-07 12:49:20,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:20,677 INFO L225 Difference]: With dead ends: 456 [2019-12-07 12:49:20,677 INFO L226 Difference]: Without dead ends: 454 [2019-12-07 12:49:20,678 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:49:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-12-07 12:49:20,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 307. [2019-12-07 12:49:20,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2019-12-07 12:49:20,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 418 transitions. [2019-12-07 12:49:20,688 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 418 transitions. Word has length 29 [2019-12-07 12:49:20,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:20,688 INFO L462 AbstractCegarLoop]: Abstraction has 307 states and 418 transitions. [2019-12-07 12:49:20,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:49:20,688 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 418 transitions. [2019-12-07 12:49:20,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 12:49:20,689 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:20,689 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] [2019-12-07 12:49:20,889 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 12:49:20,890 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:20,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:20,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1232022065, now seen corresponding path program 1 times [2019-12-07 12:49:20,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:20,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481490198] [2019-12-07 12:49:20,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:20,969 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 12:49:20,970 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:21,013 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 12:49:21,013 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:21,052 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 12:49:21,053 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481490198] [2019-12-07 12:49:21,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:21,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2019-12-07 12:49:21,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858251988] [2019-12-07 12:49:21,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-12-07 12:49:21,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:21,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-12-07 12:49:21,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-12-07 12:49:21,054 INFO L87 Difference]: Start difference. First operand 307 states and 418 transitions. Second operand 13 states. [2019-12-07 12:49:21,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:21,791 INFO L93 Difference]: Finished difference Result 581 states and 777 transitions. [2019-12-07 12:49:21,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-12-07 12:49:21,792 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2019-12-07 12:49:21,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:21,796 INFO L225 Difference]: With dead ends: 581 [2019-12-07 12:49:21,796 INFO L226 Difference]: Without dead ends: 540 [2019-12-07 12:49:21,797 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2019-12-07 12:49:21,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-12-07 12:49:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 372. [2019-12-07 12:49:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2019-12-07 12:49:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 504 transitions. [2019-12-07 12:49:21,822 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 504 transitions. Word has length 30 [2019-12-07 12:49:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:21,823 INFO L462 AbstractCegarLoop]: Abstraction has 372 states and 504 transitions. [2019-12-07 12:49:21,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-12-07 12:49:21,823 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 504 transitions. [2019-12-07 12:49:21,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 12:49:21,824 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:21,824 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] [2019-12-07 12:49:22,025 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 12:49:22,026 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:22,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:22,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1174763763, now seen corresponding path program 1 times [2019-12-07 12:49:22,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:22,028 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906511003] [2019-12-07 12:49:22,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:22,118 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 12:49:22,120 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:22,129 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 12:49:22,130 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:22,140 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 12:49:22,140 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906511003] [2019-12-07 12:49:22,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:22,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 12:49:22,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023990927] [2019-12-07 12:49:22,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:49:22,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:22,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:49:22,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:49:22,141 INFO L87 Difference]: Start difference. First operand 372 states and 504 transitions. Second operand 6 states. [2019-12-07 12:49:22,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:22,200 INFO L93 Difference]: Finished difference Result 429 states and 579 transitions. [2019-12-07 12:49:22,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:49:22,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-12-07 12:49:22,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:22,202 INFO L225 Difference]: With dead ends: 429 [2019-12-07 12:49:22,202 INFO L226 Difference]: Without dead ends: 424 [2019-12-07 12:49:22,203 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:49:22,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2019-12-07 12:49:22,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 372. [2019-12-07 12:49:22,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2019-12-07 12:49:22,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 499 transitions. [2019-12-07 12:49:22,213 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 499 transitions. Word has length 30 [2019-12-07 12:49:22,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:22,214 INFO L462 AbstractCegarLoop]: Abstraction has 372 states and 499 transitions. [2019-12-07 12:49:22,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:49:22,214 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 499 transitions. [2019-12-07 12:49:22,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 12:49:22,214 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:22,214 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] [2019-12-07 12:49:22,415 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 12:49:22,415 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:22,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:22,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1505781804, now seen corresponding path program 1 times [2019-12-07 12:49:22,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:22,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071250808] [2019-12-07 12:49:22,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:22,443 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:49:22,443 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:22,455 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 12:49:22,455 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:22,468 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 12:49:22,468 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071250808] [2019-12-07 12:49:22,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:22,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 12:49:22,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724826057] [2019-12-07 12:49:22,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:49:22,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:22,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:49:22,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:49:22,469 INFO L87 Difference]: Start difference. First operand 372 states and 499 transitions. Second operand 6 states. [2019-12-07 12:49:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:22,519 INFO L93 Difference]: Finished difference Result 775 states and 1019 transitions. [2019-12-07 12:49:22,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:49:22,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-07 12:49:22,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:22,524 INFO L225 Difference]: With dead ends: 775 [2019-12-07 12:49:22,524 INFO L226 Difference]: Without dead ends: 716 [2019-12-07 12:49:22,525 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:49:22,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2019-12-07 12:49:22,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 390. [2019-12-07 12:49:22,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-12-07 12:49:22,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 524 transitions. [2019-12-07 12:49:22,539 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 524 transitions. Word has length 31 [2019-12-07 12:49:22,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:22,540 INFO L462 AbstractCegarLoop]: Abstraction has 390 states and 524 transitions. [2019-12-07 12:49:22,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:49:22,540 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 524 transitions. [2019-12-07 12:49:22,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 12:49:22,540 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:22,541 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] [2019-12-07 12:49:22,741 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 12:49:22,741 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:22,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:22,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1078465644, now seen corresponding path program 1 times [2019-12-07 12:49:22,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:22,742 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096743739] [2019-12-07 12:49:22,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:49:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:49:22,841 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 12:49:22,841 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:49:23,041 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 12:49:23,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:49:23 BoogieIcfgContainer [2019-12-07 12:49:23,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:49:23,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:49:23,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:49:23,070 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:49:23,070 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:17" (3/4) ... [2019-12-07 12:49:23,072 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:49:23,123 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9a471169-eb63-4806-a799-93fb6f26635c/bin/uautomizer/witness.graphml [2019-12-07 12:49:23,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:49:23,125 INFO L168 Benchmark]: Toolchain (without parser) took 6340.80 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 232.8 MB). Free memory was 953.7 MB in the beginning and 917.8 MB in the end (delta: 36.0 MB). Peak memory consumption was 268.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:23,125 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:49:23,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 953.7 MB in the beginning and 1.2 GB in the end (delta: -216.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:23,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:49:23,126 INFO L168 Benchmark]: Boogie Preprocessor took 25.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:49:23,126 INFO L168 Benchmark]: RCFGBuilder took 348.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:23,127 INFO L168 Benchmark]: TraceAbstraction took 5638.34 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 52.4 MB). Free memory was 1.1 GB in the beginning and 924.5 MB in the end (delta: 203.7 MB). Peak memory consumption was 256.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:23,127 INFO L168 Benchmark]: Witness Printer took 53.76 ms. Allocated memory is still 1.3 GB. Free memory was 924.5 MB in the beginning and 917.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:23,129 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 238.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 953.7 MB in the beginning and 1.2 GB in the end (delta: -216.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 348.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5638.34 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 52.4 MB). Free memory was 1.1 GB in the beginning and 924.5 MB in the end (delta: 203.7 MB). Peak memory consumption was 256.1 MB. Max. memory is 11.5 GB. * Witness Printer took 53.76 ms. Allocated memory is still 1.3 GB. Free memory was 924.5 MB in the beginning and 917.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add ; [L223] unsigned int zero ; [L224] int sa ; [L225] int sb ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L230] int tmp___3 ; [L231] int tmp___4 ; [L232] int tmp___5 ; [L233] int tmp___6 ; [L234] int tmp___7 ; [L235] int tmp___8 ; [L236] int tmp___9 ; [L237] int __retres23 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L241] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L242] a = base2flt(ma, ea) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L243] b = base2flt(mb, eb) [L245] COND FALSE !(a < zero) [L248] COND TRUE a > zero [L249] tmp = 1 [L253] sa = tmp [L255] COND FALSE !(b < zero) [L258] COND TRUE b > zero [L259] tmp___0 = 1 [L263] sb = tmp___0 [L74] unsigned int res ; [L75] unsigned int ma ; [L76] unsigned int mb ; [L77] unsigned int delta ; [L78] int ea ; [L79] int eb ; [L80] unsigned int tmp ; [L81] unsigned int __retres10 ; [L84] COND TRUE a < b [L85] tmp = a [L86] a = b [L87] b = tmp [L91] COND FALSE !(! b) [L98] ma = a & ((1U << 24U) - 1U) [L99] ea = (int )(a >> 24U) - 128 [L100] ma = ma | (1U << 24U) [L101] mb = b & ((1U << 24U) - 1U) [L102] eb = (int )(b >> 24U) - 128 [L103] mb = mb | (1U << 24U) [L6] COND FALSE !(!(cond)) [L105] delta = ea - eb [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 6 error locations. Result: UNSAFE, OverallTime: 5.5s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1352 SDtfs, 3612 SDslu, 5031 SDs, 0 SdLazy, 992 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 541 GetRequests, 445 SyntacticMatches, 5 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=390occurred in iteration=10, 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, 10 MinimizatonAttempts, 1273 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 22852 SizeOfPredicates, 45 NumberOfNonLiveVariables, 576 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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...