./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba95b834b27cbcdd4c6d5fb7724b09e9ec143686 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:14:13,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:14:13,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:14:13,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:14:13,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:14:13,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:14:13,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:14:13,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:14:13,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:14:13,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:14:13,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:14:13,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:14:13,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:14:13,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:14:13,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:14:13,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:14:13,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:14:13,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:14:13,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:14:13,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:14:13,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:14:13,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:14:13,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:14:13,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:14:13,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:14:13,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:14:13,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:14:13,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:14:13,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:14:13,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:14:13,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:14:13,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:14:13,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:14:13,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:14:13,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:14:13,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:14:13,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:14:13,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:14:13,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:14:13,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:14:13,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:14:13,850 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-20 10:14:13,863 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:14:13,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:14:13,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:14:13,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:14:13,865 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:14:13,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:14:13,865 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:14:13,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:14:13,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:14:13,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:14:13,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:14:13,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:14:13,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:14:13,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:14:13,870 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 10:14:13,870 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:14:13,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:14:13,871 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:14:13,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:14:13,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:14:13,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:14:13,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:14:13,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:14:13,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:14:13,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:14:13,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:14:13,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:14:13,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:14:13,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:14:13,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:14:13,874 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_55f7851a-513a-42ba-b179-770bc22e3f0e/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 ! overflow) ) 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 -> ba95b834b27cbcdd4c6d5fb7724b09e9ec143686 [2019-11-20 10:14:14,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:14:14,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:14:14,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:14:14,075 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:14:14,076 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:14:14,077 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2019-11-20 10:14:14,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/data/8d562839b/dfcb47ab32c94a20aa7ded395500316b/FLAGdf96e8883 [2019-11-20 10:14:14,516 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:14:14,517 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2019-11-20 10:14:14,524 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/data/8d562839b/dfcb47ab32c94a20aa7ded395500316b/FLAGdf96e8883 [2019-11-20 10:14:14,898 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/data/8d562839b/dfcb47ab32c94a20aa7ded395500316b [2019-11-20 10:14:14,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:14:14,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:14:14,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:14:14,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:14:14,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:14:14,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:14:14" (1/1) ... [2019-11-20 10:14:14,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158288d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:14, skipping insertion in model container [2019-11-20 10:14:14,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:14:14" (1/1) ... [2019-11-20 10:14:14,917 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:14:14,945 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:14:15,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:14:15,233 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:14:15,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:14:15,323 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:14:15,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15 WrapperNode [2019-11-20 10:14:15,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:14:15,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:14:15,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:14:15,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:14:15,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (1/1) ... [2019-11-20 10:14:15,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (1/1) ... [2019-11-20 10:14:15,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:14:15,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:14:15,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:14:15,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:14:15,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (1/1) ... [2019-11-20 10:14:15,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (1/1) ... [2019-11-20 10:14:15,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (1/1) ... [2019-11-20 10:14:15,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (1/1) ... [2019-11-20 10:14:15,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (1/1) ... [2019-11-20 10:14:15,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (1/1) ... [2019-11-20 10:14:15,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (1/1) ... [2019-11-20 10:14:15,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:14:15,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:14:15,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:14:15,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:14:15,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55f7851a-513a-42ba-b179-770bc22e3f0e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:14:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:14:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:14:16,026 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:14:16,026 INFO L285 CfgBuilder]: Removed 28 assume(true) statements. [2019-11-20 10:14:16,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:14:16 BoogieIcfgContainer [2019-11-20 10:14:16,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:14:16,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:14:16,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:14:16,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:14:16,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:14:14" (1/3) ... [2019-11-20 10:14:16,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5456c72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:14:16, skipping insertion in model container [2019-11-20 10:14:16,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:14:15" (2/3) ... [2019-11-20 10:14:16,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5456c72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:14:16, skipping insertion in model container [2019-11-20 10:14:16,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:14:16" (3/3) ... [2019-11-20 10:14:16,034 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_1-2.c.cil.c [2019-11-20 10:14:16,043 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:14:16,061 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2019-11-20 10:14:16,070 INFO L249 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2019-11-20 10:14:16,092 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:14:16,093 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:14:16,093 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:14:16,093 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:14:16,093 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:14:16,094 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:14:16,094 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:14:16,094 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:14:16,118 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2019-11-20 10:14:16,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 10:14:16,125 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:14:16,126 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:14:16,127 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:14:16,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:16,133 INFO L82 PathProgramCache]: Analyzing trace with hash 922901410, now seen corresponding path program 1 times [2019-11-20 10:14:16,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:14:16,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454260566] [2019-11-20 10:14:16,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:14:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:14:16,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:14:16,250 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454260566] [2019-11-20 10:14:16,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:14:16,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:14:16,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473119033] [2019-11-20 10:14:16,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 10:14:16,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:14:16,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 10:14:16,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:14:16,271 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2019-11-20 10:14:16,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:14:16,303 INFO L93 Difference]: Finished difference Result 295 states and 401 transitions. [2019-11-20 10:14:16,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 10:14:16,305 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-20 10:14:16,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:14:16,316 INFO L225 Difference]: With dead ends: 295 [2019-11-20 10:14:16,317 INFO L226 Difference]: Without dead ends: 120 [2019-11-20 10:14:16,321 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:14:16,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-20 10:14:16,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-11-20 10:14:16,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-20 10:14:16,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 143 transitions. [2019-11-20 10:14:16,364 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 143 transitions. Word has length 6 [2019-11-20 10:14:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:14:16,364 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 143 transitions. [2019-11-20 10:14:16,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 10:14:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 143 transitions. [2019-11-20 10:14:16,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 10:14:16,365 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:14:16,366 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:14:16,366 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:14:16,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:16,367 INFO L82 PathProgramCache]: Analyzing trace with hash 921960144, now seen corresponding path program 1 times [2019-11-20 10:14:16,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:14:16,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356300129] [2019-11-20 10:14:16,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:14:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:14:16,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:14:16,438 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356300129] [2019-11-20 10:14:16,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:14:16,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:14:16,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146946901] [2019-11-20 10:14:16,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:14:16,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:14:16,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:14:16,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:14:16,446 INFO L87 Difference]: Start difference. First operand 120 states and 143 transitions. Second operand 4 states. [2019-11-20 10:14:16,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:14:16,666 INFO L93 Difference]: Finished difference Result 256 states and 301 transitions. [2019-11-20 10:14:16,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 10:14:16,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-20 10:14:16,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:14:16,669 INFO L225 Difference]: With dead ends: 256 [2019-11-20 10:14:16,669 INFO L226 Difference]: Without dead ends: 138 [2019-11-20 10:14:16,670 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:14:16,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-11-20 10:14:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 96. [2019-11-20 10:14:16,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-11-20 10:14:16,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 113 transitions. [2019-11-20 10:14:16,681 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 113 transitions. Word has length 6 [2019-11-20 10:14:16,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:14:16,681 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 113 transitions. [2019-11-20 10:14:16,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:14:16,682 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 113 transitions. [2019-11-20 10:14:16,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 10:14:16,682 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:14:16,683 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:14:16,683 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:14:16,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:16,683 INFO L82 PathProgramCache]: Analyzing trace with hash -745301351, now seen corresponding path program 1 times [2019-11-20 10:14:16,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:14:16,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505938513] [2019-11-20 10:14:16,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:14:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:14:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:14:16,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505938513] [2019-11-20 10:14:16,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:14:16,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:14:16,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114014113] [2019-11-20 10:14:16,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:14:16,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:14:16,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:14:16,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:14:16,725 INFO L87 Difference]: Start difference. First operand 96 states and 113 transitions. Second operand 4 states. [2019-11-20 10:14:16,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:14:16,816 INFO L93 Difference]: Finished difference Result 147 states and 172 transitions. [2019-11-20 10:14:16,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 10:14:16,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-20 10:14:16,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:14:16,819 INFO L225 Difference]: With dead ends: 147 [2019-11-20 10:14:16,819 INFO L226 Difference]: Without dead ends: 143 [2019-11-20 10:14:16,820 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:14:16,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-20 10:14:16,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 97. [2019-11-20 10:14:16,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-20 10:14:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 115 transitions. [2019-11-20 10:14:16,839 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 115 transitions. Word has length 9 [2019-11-20 10:14:16,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:14:16,839 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 115 transitions. [2019-11-20 10:14:16,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:14:16,840 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 115 transitions. [2019-11-20 10:14:16,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 10:14:16,843 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:14:16,844 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:14:16,844 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:14:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:16,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1629505264, now seen corresponding path program 1 times [2019-11-20 10:14:16,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:14:16,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148043689] [2019-11-20 10:14:16,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:14:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:14:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:14:16,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148043689] [2019-11-20 10:14:16,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:14:16,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:14:16,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583835849] [2019-11-20 10:14:16,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:14:16,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:14:16,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:14:16,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:14:16,874 INFO L87 Difference]: Start difference. First operand 97 states and 115 transitions. Second operand 3 states. [2019-11-20 10:14:16,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:14:16,934 INFO L93 Difference]: Finished difference Result 139 states and 162 transitions. [2019-11-20 10:14:16,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:14:16,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-20 10:14:16,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:14:16,936 INFO L225 Difference]: With dead ends: 139 [2019-11-20 10:14:16,936 INFO L226 Difference]: Without dead ends: 137 [2019-11-20 10:14:16,937 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:14:16,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-20 10:14:16,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 95. [2019-11-20 10:14:16,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-11-20 10:14:16,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 113 transitions. [2019-11-20 10:14:16,946 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 113 transitions. Word has length 10 [2019-11-20 10:14:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:14:16,946 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 113 transitions. [2019-11-20 10:14:16,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:14:16,946 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 113 transitions. [2019-11-20 10:14:16,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 10:14:16,947 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:14:16,947 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:14:16,948 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:14:16,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:16,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1912392577, now seen corresponding path program 1 times [2019-11-20 10:14:16,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:14:16,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515784471] [2019-11-20 10:14:16,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:14:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:14:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:14:16,994 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515784471] [2019-11-20 10:14:16,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:14:16,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:14:16,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485203646] [2019-11-20 10:14:16,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:14:16,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:14:16,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:14:16,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:14:16,996 INFO L87 Difference]: Start difference. First operand 95 states and 113 transitions. Second operand 4 states. [2019-11-20 10:14:17,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:14:17,091 INFO L93 Difference]: Finished difference Result 146 states and 171 transitions. [2019-11-20 10:14:17,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 10:14:17,092 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 10:14:17,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:14:17,093 INFO L225 Difference]: With dead ends: 146 [2019-11-20 10:14:17,093 INFO L226 Difference]: Without dead ends: 143 [2019-11-20 10:14:17,093 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:14:17,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-20 10:14:17,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 99. [2019-11-20 10:14:17,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-20 10:14:17,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions. [2019-11-20 10:14:17,102 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 118 transitions. Word has length 11 [2019-11-20 10:14:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:14:17,102 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 118 transitions. [2019-11-20 10:14:17,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:14:17,102 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 118 transitions. [2019-11-20 10:14:17,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 10:14:17,103 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:14:17,103 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:14:17,103 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:14:17,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:17,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1164357791, now seen corresponding path program 1 times [2019-11-20 10:14:17,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:14:17,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802118269] [2019-11-20 10:14:17,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:14:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:14:17,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:14:17,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802118269] [2019-11-20 10:14:17,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:14:17,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:14:17,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191582044] [2019-11-20 10:14:17,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:14:17,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:14:17,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:14:17,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:14:17,186 INFO L87 Difference]: Start difference. First operand 99 states and 118 transitions. Second operand 4 states. [2019-11-20 10:14:17,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:14:17,272 INFO L93 Difference]: Finished difference Result 150 states and 177 transitions. [2019-11-20 10:14:17,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 10:14:17,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-20 10:14:17,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:14:17,275 INFO L225 Difference]: With dead ends: 150 [2019-11-20 10:14:17,275 INFO L226 Difference]: Without dead ends: 148 [2019-11-20 10:14:17,275 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:14:17,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-11-20 10:14:17,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 102. [2019-11-20 10:14:17,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-20 10:14:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2019-11-20 10:14:17,288 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 12 [2019-11-20 10:14:17,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:14:17,289 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2019-11-20 10:14:17,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:14:17,289 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2019-11-20 10:14:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 10:14:17,291 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:14:17,291 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:14:17,295 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:14:17,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:14:17,295 INFO L82 PathProgramCache]: Analyzing trace with hash -843278768, now seen corresponding path program 1 times [2019-11-20 10:14:17,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:14:17,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319073975] [2019-11-20 10:14:17,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:14:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:14:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:14:17,359 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:14:17,359 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:14:17,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:14:17 BoogieIcfgContainer [2019-11-20 10:14:17,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:14:17,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:14:17,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:14:17,395 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:14:17,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:14:16" (3/4) ... [2019-11-20 10:14:17,399 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:14:17,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:14:17,402 INFO L168 Benchmark]: Toolchain (without parser) took 2499.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 946.0 MB in the beginning and 977.6 MB in the end (delta: -31.5 MB). Peak memory consumption was 127.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:14:17,402 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:14:17,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -203.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:14:17,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-20 10:14:17,408 INFO L168 Benchmark]: Boogie Preprocessor took 34.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:14:17,409 INFO L168 Benchmark]: RCFGBuilder took 623.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:14:17,409 INFO L168 Benchmark]: TraceAbstraction took 1365.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.6 MB in the end (delta: 117.4 MB). Peak memory consumption was 117.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:14:17,410 INFO L168 Benchmark]: Witness Printer took 4.95 ms. Allocated memory is still 1.2 GB. Free memory is still 977.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:14:17,416 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 421.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -203.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 623.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1365.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.6 MB in the end (delta: 117.4 MB). Peak memory consumption was 117.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.95 ms. Allocated memory is still 1.2 GB. Free memory is still 977.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 68]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 67. Possible FailurePath: [L217] unsigned int a ; [L218] unsigned int ma = __VERIFIER_nondet_uint(); [L219] signed char ea = __VERIFIER_nondet_char(); [L220] unsigned int b ; [L221] unsigned int mb = __VERIFIER_nondet_uint(); [L222] signed char eb = __VERIFIER_nondet_char(); [L223] unsigned int r_add ; [L224] unsigned int zero ; [L225] int sa ; [L226] int sb ; [L227] int tmp ; [L228] int tmp___0 ; [L229] int tmp___1 ; [L230] int tmp___2 ; [L231] int tmp___3 ; [L232] int tmp___4 ; [L233] int tmp___5 ; [L234] int tmp___6 ; [L235] int tmp___7 ; [L236] int tmp___8 ; [L237] int tmp___9 ; [L238] int __retres23 ; [L16] unsigned int res ; [L17] unsigned int __retres4 ; [L20] COND TRUE ! m [L21] __retres4 = 0U [L71] return (__retres4); [L242] zero = base2flt(0, 0) [L16] unsigned int res ; [L17] unsigned int __retres4 ; [L20] COND FALSE !(! m) [L26] COND FALSE !(m < 1U << 24U) [L48] COND TRUE 1 [L50] COND FALSE !(m >= 1U << 25U) [L67] m = m & ~ (1U << 24U) [L68] EXPR e + 128 [L68] (e + 128) << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 157 locations, 36 error locations. Result: UNSAFE, OverallTime: 1.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 852 SDtfs, 693 SDslu, 415 SDs, 0 SdLazy, 244 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 220 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1348 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...