./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/count_by_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 490e26872e4d657862c7b215f56fb6c391045902 ..................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:19:39,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:39,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:40,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:40,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:40,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:40,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:40,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:40,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:40,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:40,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:40,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:40,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:40,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:40,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:40,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:40,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:40,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:40,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:40,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:40,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:40,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:40,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:40,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:40,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:40,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:40,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:40,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:40,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:40,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:40,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:40,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:40,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:40,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:40,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:40,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:40,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:40,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:40,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:40,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:40,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:40,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:19:40,120 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:40,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:40,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:40,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:40,123 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:40,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:40,124 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:40,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:40,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:40,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:40,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:19:40,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:19:40,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:19:40,126 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:40,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:40,127 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:40,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:19:40,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:40,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:40,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:19:40,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:19:40,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:40,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:40,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:19:40,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:19:40,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:40,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:19:40,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:19:40,130 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:40,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 490e26872e4d657862c7b215f56fb6c391045902 [2020-11-28 03:19:40,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:40,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:40,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:40,423 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:40,426 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:40,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/../../sv-benchmarks/c/loop-new/count_by_1.i [2020-11-28 03:19:40,500 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/data/b1b9f9a1b/bfeb714ded7145ea96748cf5699e9e76/FLAG01e1681ce [2020-11-28 03:19:40,964 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:40,967 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/sv-benchmarks/c/loop-new/count_by_1.i [2020-11-28 03:19:40,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/data/b1b9f9a1b/bfeb714ded7145ea96748cf5699e9e76/FLAG01e1681ce [2020-11-28 03:19:41,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/data/b1b9f9a1b/bfeb714ded7145ea96748cf5699e9e76 [2020-11-28 03:19:41,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:41,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:41,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:41,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:41,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:41,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31793c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41, skipping insertion in model container [2020-11-28 03:19:41,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:41,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:41,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:41,634 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:41,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:41,668 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:41,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41 WrapperNode [2020-11-28 03:19:41,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:41,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:41,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:41,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:41,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:41,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:41,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:41,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:41,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... [2020-11-28 03:19:41,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:41,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:41,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:41,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:41,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/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 [2020-11-28 03:19:41,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:41,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:41,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:42,025 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:42,025 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:19:42,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:42 BoogieIcfgContainer [2020-11-28 03:19:42,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:42,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:42,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:42,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:42,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:41" (1/3) ... [2020-11-28 03:19:42,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714e4b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:42, skipping insertion in model container [2020-11-28 03:19:42,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:41" (2/3) ... [2020-11-28 03:19:42,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714e4b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:42, skipping insertion in model container [2020-11-28 03:19:42,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:42" (3/3) ... [2020-11-28 03:19:42,035 INFO L111 eAbstractionObserver]: Analyzing ICFG count_by_1.i [2020-11-28 03:19:42,046 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:42,050 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:19:42,062 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:19:42,086 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:42,086 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:19:42,086 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:42,086 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:42,086 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:42,087 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:42,087 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:42,087 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:42,100 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-28 03:19:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:19:42,104 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:42,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:42,105 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:42,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:42,111 INFO L82 PathProgramCache]: Analyzing trace with hash 211949486, now seen corresponding path program 1 times [2020-11-28 03:19:42,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:42,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633666791] [2020-11-28 03:19:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:42,363 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-11-28 03:19:42,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:42,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633666791] [2020-11-28 03:19:42,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:42,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:19:42,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749279900] [2020-11-28 03:19:42,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:42,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:42,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:42,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:42,387 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-11-28 03:19:42,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:42,437 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2020-11-28 03:19:42,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:42,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-28 03:19:42,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:42,447 INFO L225 Difference]: With dead ends: 27 [2020-11-28 03:19:42,447 INFO L226 Difference]: Without dead ends: 12 [2020-11-28 03:19:42,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:42,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-28 03:19:42,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-11-28 03:19:42,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 03:19:42,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-11-28 03:19:42,479 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2020-11-28 03:19:42,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:42,480 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-11-28 03:19:42,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-11-28 03:19:42,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:19:42,482 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:42,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:42,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:19:42,482 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:42,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:42,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1435847344, now seen corresponding path program 1 times [2020-11-28 03:19:42,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:42,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014846655] [2020-11-28 03:19:42,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:42,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014846655] [2020-11-28 03:19:42,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883997812] [2020-11-28 03:19:42,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:19:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:42,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:19:42,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:42,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:42,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:19:42,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-11-28 03:19:42,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349341765] [2020-11-28 03:19:42,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:19:42,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:42,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:19:42,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:42,742 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 5 states. [2020-11-28 03:19:42,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:42,777 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-11-28 03:19:42,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:19:42,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-28 03:19:42,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:42,779 INFO L225 Difference]: With dead ends: 20 [2020-11-28 03:19:42,779 INFO L226 Difference]: Without dead ends: 14 [2020-11-28 03:19:42,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:42,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-28 03:19:42,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-11-28 03:19:42,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 03:19:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-28 03:19:42,783 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2020-11-28 03:19:42,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:42,784 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-28 03:19:42,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:19:42,784 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-28 03:19:42,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:19:42,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:42,785 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:42,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 03:19:42,986 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:42,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:42,986 INFO L82 PathProgramCache]: Analyzing trace with hash 780649778, now seen corresponding path program 2 times [2020-11-28 03:19:42,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:42,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524468886] [2020-11-28 03:19:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 03:19:43,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524468886] [2020-11-28 03:19:43,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:43,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:19:43,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012733986] [2020-11-28 03:19:43,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:19:43,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:43,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:19:43,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:19:43,116 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2020-11-28 03:19:43,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:43,155 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-11-28 03:19:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:19:43,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-11-28 03:19:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:43,156 INFO L225 Difference]: With dead ends: 13 [2020-11-28 03:19:43,156 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:19:43,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:19:43,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:19:43,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:19:43,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:19:43,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:19:43,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-28 03:19:43,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:43,158 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:43,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:19:43,158 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:19:43,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:19:43,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:19:43,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:19:43,205 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:19:43,205 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-28 03:19:43,205 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:19:43,205 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:19:43,205 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:19:43,206 INFO L277 CegarLoopResult]: At program point L28(lines 24 29) the Hoare annotation is: true [2020-11-28 03:19:43,206 INFO L274 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed. [2020-11-28 03:19:43,206 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 03:19:43,206 INFO L270 CegarLoopResult]: At program point L26-3(line 26) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 1000000) [2020-11-28 03:19:43,206 INFO L274 CegarLoopResult]: For program point L26-4(line 26) no Hoare annotation was computed. [2020-11-28 03:19:43,207 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-11-28 03:19:43,207 INFO L277 CegarLoopResult]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2020-11-28 03:19:43,207 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:19:43,207 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-28 03:19:43,207 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-28 03:19:43,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:43 BoogieIcfgContainer [2020-11-28 03:19:43,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:43,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:43,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:43,223 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:43,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:42" (3/4) ... [2020-11-28 03:19:43,228 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:19:43,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:19:43,236 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:19:43,236 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:19:43,236 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:19:43,273 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d53280de-4a59-4296-854a-80142d6a86e2/bin/uautomizer/witness.graphml [2020-11-28 03:19:43,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:43,278 INFO L168 Benchmark]: Toolchain (without parser) took 1931.49 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 63.0 MB in the beginning and 63.8 MB in the end (delta: -769.6 kB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:43,279 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 92.3 MB. Free memory was 51.4 MB in the beginning and 51.3 MB in the end (delta: 37.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:43,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.98 ms. Allocated memory is still 92.3 MB. Free memory was 62.8 MB in the beginning and 70.2 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:43,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.48 ms. Allocated memory is still 92.3 MB. Free memory was 70.2 MB in the beginning and 68.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:43,281 INFO L168 Benchmark]: Boogie Preprocessor took 34.28 ms. Allocated memory is still 92.3 MB. Free memory was 68.9 MB in the beginning and 68.1 MB in the end (delta: 879.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:43,282 INFO L168 Benchmark]: RCFGBuilder took 278.89 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 57.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:43,282 INFO L168 Benchmark]: TraceAbstraction took 1193.85 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 57.2 MB in the beginning and 66.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:43,283 INFO L168 Benchmark]: Witness Printer took 51.56 ms. Allocated memory is still 111.1 MB. Free memory was 65.9 MB in the beginning and 63.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:43,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 92.3 MB. Free memory was 51.4 MB in the beginning and 51.3 MB in the end (delta: 37.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 316.98 ms. Allocated memory is still 92.3 MB. Free memory was 62.8 MB in the beginning and 70.2 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.48 ms. Allocated memory is still 92.3 MB. Free memory was 70.2 MB in the beginning and 68.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.28 ms. Allocated memory is still 92.3 MB. Free memory was 68.9 MB in the beginning and 68.1 MB in the end (delta: 879.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 278.89 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 57.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1193.85 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 57.2 MB in the beginning and 66.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Witness Printer took 51.56 ms. Allocated memory is still 111.1 MB. Free memory was 65.9 MB in the beginning and 63.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 8 SDslu, 23 SDs, 0 SdLazy, 31 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 3 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 597 SizeOfPredicates, 1 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 4/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...