./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-array-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-array-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98082e1bae85d3082e805f8ac23c0d951de3a5ba ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:55:03,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:55:03,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:55:03,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:55:03,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:55:03,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:55:03,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:55:03,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:55:03,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:55:03,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:55:03,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:55:03,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:55:03,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:55:03,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:55:03,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:55:03,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:55:03,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:55:03,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:55:03,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:55:03,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:55:03,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:55:03,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:55:03,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:55:03,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:55:03,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:55:03,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:55:03,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:55:03,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:55:03,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:55:03,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:55:03,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:55:03,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:55:03,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:55:03,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:55:03,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:55:03,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:55:03,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:55:03,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:55:03,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:55:03,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:55:03,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:55:03,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 05:55:03,984 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:55:03,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:55:03,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:55:03,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:55:03,986 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:55:03,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:55:03,986 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:55:03,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:55:03,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:55:03,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:55:03,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:55:03,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:55:03,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:55:03,987 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:55:03,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:55:03,988 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:55:03,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:55:03,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:55:03,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:55:03,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:55:03,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:55:03,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:55:03,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:55:03,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:55:03,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:55:03,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:55:03,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:55:03,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:55:03,990 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_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98082e1bae85d3082e805f8ac23c0d951de3a5ba [2019-11-20 05:55:04,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:55:04,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:55:04,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:55:04,143 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:55:04,144 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:55:04,144 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/../../sv-benchmarks/c/pthread-nondet/nondet-array-2.i [2019-11-20 05:55:04,196 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/data/c417b2703/f73ee3666d7642429760c7079fcc66cc/FLAG418aaedf5 [2019-11-20 05:55:04,603 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:55:04,603 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/sv-benchmarks/c/pthread-nondet/nondet-array-2.i [2019-11-20 05:55:04,617 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/data/c417b2703/f73ee3666d7642429760c7079fcc66cc/FLAG418aaedf5 [2019-11-20 05:55:04,928 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/data/c417b2703/f73ee3666d7642429760c7079fcc66cc [2019-11-20 05:55:04,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:55:04,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:55:04,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:55:04,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:55:04,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:55:04,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:55:04" (1/1) ... [2019-11-20 05:55:04,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be69960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:04, skipping insertion in model container [2019-11-20 05:55:04,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:55:04" (1/1) ... [2019-11-20 05:55:04,950 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:55:04,993 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:55:05,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:55:05,429 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:55:05,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:55:05,561 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:55:05,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05 WrapperNode [2019-11-20 05:55:05,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:55:05,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:55:05,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:55:05,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:55:05,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (1/1) ... [2019-11-20 05:55:05,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (1/1) ... [2019-11-20 05:55:05,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:55:05,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:55:05,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:55:05,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:55:05,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (1/1) ... [2019-11-20 05:55:05,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (1/1) ... [2019-11-20 05:55:05,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (1/1) ... [2019-11-20 05:55:05,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (1/1) ... [2019-11-20 05:55:05,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (1/1) ... [2019-11-20 05:55:05,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (1/1) ... [2019-11-20 05:55:05,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (1/1) ... [2019-11-20 05:55:05,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:55:05,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:55:05,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:55:05,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:55:05,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/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 05:55:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-20 05:55:05,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 05:55:05,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 05:55:05,717 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-11-20 05:55:05,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-11-20 05:55:05,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:55:05,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:55:05,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:55:05,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:55:05,720 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 05:55:06,021 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:55:06,022 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 05:55:06,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:55:06 BoogieIcfgContainer [2019-11-20 05:55:06,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:55:06,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:55:06,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:55:06,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:55:06,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:55:04" (1/3) ... [2019-11-20 05:55:06,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103a976c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:55:06, skipping insertion in model container [2019-11-20 05:55:06,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:05" (2/3) ... [2019-11-20 05:55:06,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103a976c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:55:06, skipping insertion in model container [2019-11-20 05:55:06,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:55:06" (3/3) ... [2019-11-20 05:55:06,030 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-array-2.i [2019-11-20 05:55:06,063 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,064 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,064 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,064 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,064 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,065 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,065 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,065 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,065 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,065 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,065 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,066 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,066 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,066 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,066 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,067 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,067 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,067 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,067 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,067 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,068 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:55:06,085 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 05:55:06,085 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:55:06,092 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:55:06,102 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:55:06,120 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:55:06,120 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:55:06,121 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:55:06,121 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:55:06,121 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:55:06,121 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:55:06,121 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:55:06,121 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:55:06,132 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 79 transitions [2019-11-20 05:55:07,059 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11498 states. [2019-11-20 05:55:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 11498 states. [2019-11-20 05:55:07,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 05:55:07,077 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:55:07,078 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:55:07,078 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:55:07,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:55:07,084 INFO L82 PathProgramCache]: Analyzing trace with hash 197122563, now seen corresponding path program 1 times [2019-11-20 05:55:07,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:55:07,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325790716] [2019-11-20 05:55:07,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:55:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:55:07,320 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 05:55:07,321 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325790716] [2019-11-20 05:55:07,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:55:07,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 05:55:07,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759100172] [2019-11-20 05:55:07,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 05:55:07,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:55:07,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 05:55:07,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 05:55:07,343 INFO L87 Difference]: Start difference. First operand 11498 states. Second operand 2 states. [2019-11-20 05:55:07,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:55:07,531 INFO L93 Difference]: Finished difference Result 11498 states and 36092 transitions. [2019-11-20 05:55:07,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:55:07,533 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2019-11-20 05:55:07,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:55:07,630 INFO L225 Difference]: With dead ends: 11498 [2019-11-20 05:55:07,630 INFO L226 Difference]: Without dead ends: 9006 [2019-11-20 05:55:07,632 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 05:55:07,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9006 states. [2019-11-20 05:55:08,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9006 to 9006. [2019-11-20 05:55:08,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9006 states. [2019-11-20 05:55:08,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 28110 transitions. [2019-11-20 05:55:08,161 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 28110 transitions. Word has length 29 [2019-11-20 05:55:08,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:55:08,162 INFO L462 AbstractCegarLoop]: Abstraction has 9006 states and 28110 transitions. [2019-11-20 05:55:08,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 05:55:08,162 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 28110 transitions. [2019-11-20 05:55:08,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 05:55:08,168 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:55:08,168 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:55:08,168 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:55:08,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:55:08,169 INFO L82 PathProgramCache]: Analyzing trace with hash 916313188, now seen corresponding path program 1 times [2019-11-20 05:55:08,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:55:08,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066436965] [2019-11-20 05:55:08,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:55:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:55:08,310 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 05:55:08,311 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066436965] [2019-11-20 05:55:08,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:55:08,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 05:55:08,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873150321] [2019-11-20 05:55:08,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 05:55:08,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:55:08,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 05:55:08,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 05:55:08,314 INFO L87 Difference]: Start difference. First operand 9006 states and 28110 transitions. Second operand 5 states. [2019-11-20 05:55:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:55:08,540 INFO L93 Difference]: Finished difference Result 11407 states and 35656 transitions. [2019-11-20 05:55:08,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 05:55:08,541 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-20 05:55:08,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:55:08,622 INFO L225 Difference]: With dead ends: 11407 [2019-11-20 05:55:08,623 INFO L226 Difference]: Without dead ends: 10035 [2019-11-20 05:55:08,623 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 05:55:08,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10035 states. [2019-11-20 05:55:08,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10035 to 9349. [2019-11-20 05:55:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9349 states. [2019-11-20 05:55:08,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9349 states to 9349 states and 29188 transitions. [2019-11-20 05:55:08,980 INFO L78 Accepts]: Start accepts. Automaton has 9349 states and 29188 transitions. Word has length 29 [2019-11-20 05:55:08,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:55:08,981 INFO L462 AbstractCegarLoop]: Abstraction has 9349 states and 29188 transitions. [2019-11-20 05:55:08,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 05:55:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand 9349 states and 29188 transitions. [2019-11-20 05:55:08,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-20 05:55:08,985 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:55:08,986 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:55:08,986 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:55:08,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:55:08,994 INFO L82 PathProgramCache]: Analyzing trace with hash -204068681, now seen corresponding path program 1 times [2019-11-20 05:55:08,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:55:08,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711367309] [2019-11-20 05:55:08,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:55:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:55:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:55:09,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711367309] [2019-11-20 05:55:09,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604124555] [2019-11-20 05:55:09,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/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 [2019-11-20 05:55:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:55:09,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 05:55:09,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:55:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:55:09,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 05:55:09,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2019-11-20 05:55:09,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055502169] [2019-11-20 05:55:09,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 05:55:09,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:55:09,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:55:09,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-20 05:55:09,319 INFO L87 Difference]: Start difference. First operand 9349 states and 29188 transitions. Second operand 4 states. [2019-11-20 05:55:09,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:55:09,445 INFO L93 Difference]: Finished difference Result 6962 states and 19462 transitions. [2019-11-20 05:55:09,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:55:09,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-11-20 05:55:09,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:55:09,464 INFO L225 Difference]: With dead ends: 6962 [2019-11-20 05:55:09,465 INFO L226 Difference]: Without dead ends: 6962 [2019-11-20 05:55:09,465 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-20 05:55:09,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6962 states. [2019-11-20 05:55:09,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6962 to 6018. [2019-11-20 05:55:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6018 states. [2019-11-20 05:55:09,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6018 states to 6018 states and 17195 transitions. [2019-11-20 05:55:09,679 INFO L78 Accepts]: Start accepts. Automaton has 6018 states and 17195 transitions. Word has length 36 [2019-11-20 05:55:09,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:55:09,680 INFO L462 AbstractCegarLoop]: Abstraction has 6018 states and 17195 transitions. [2019-11-20 05:55:09,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 05:55:09,681 INFO L276 IsEmpty]: Start isEmpty. Operand 6018 states and 17195 transitions. [2019-11-20 05:55:09,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-20 05:55:09,696 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:55:09,697 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:55:09,901 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:55:09,901 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:55:09,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:55:09,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1176794984, now seen corresponding path program 1 times [2019-11-20 05:55:09,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:55:09,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83319378] [2019-11-20 05:55:09,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:55:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:55:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:55:10,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83319378] [2019-11-20 05:55:10,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185247126] [2019-11-20 05:55:10,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:55:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:55:10,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 05:55:10,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:55:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 05:55:10,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:55:10,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6] total 18 [2019-11-20 05:55:10,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483662222] [2019-11-20 05:55:10,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-20 05:55:10,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:55:10,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-20 05:55:10,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2019-11-20 05:55:10,432 INFO L87 Difference]: Start difference. First operand 6018 states and 17195 transitions. Second operand 18 states. [2019-11-20 05:55:10,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:55:10,841 INFO L93 Difference]: Finished difference Result 6887 states and 19324 transitions. [2019-11-20 05:55:10,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 05:55:10,841 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 55 [2019-11-20 05:55:10,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:55:10,858 INFO L225 Difference]: With dead ends: 6887 [2019-11-20 05:55:10,858 INFO L226 Difference]: Without dead ends: 6887 [2019-11-20 05:55:10,859 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2019-11-20 05:55:10,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6887 states. [2019-11-20 05:55:11,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6887 to 5982. [2019-11-20 05:55:11,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5982 states. [2019-11-20 05:55:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5982 states to 5982 states and 17111 transitions. [2019-11-20 05:55:11,031 INFO L78 Accepts]: Start accepts. Automaton has 5982 states and 17111 transitions. Word has length 55 [2019-11-20 05:55:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:55:11,032 INFO L462 AbstractCegarLoop]: Abstraction has 5982 states and 17111 transitions. [2019-11-20 05:55:11,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-20 05:55:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5982 states and 17111 transitions. [2019-11-20 05:55:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-20 05:55:11,044 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:55:11,044 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:55:11,248 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:55:11,248 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:55:11,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:55:11,249 INFO L82 PathProgramCache]: Analyzing trace with hash -960128164, now seen corresponding path program 1 times [2019-11-20 05:55:11,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:55:11,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621897618] [2019-11-20 05:55:11,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:55:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:55:11,535 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:55:11,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621897618] [2019-11-20 05:55:11,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145285721] [2019-11-20 05:55:11,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:55:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:55:11,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 05:55:11,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:55:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 05:55:11,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:55:11,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8] total 22 [2019-11-20 05:55:11,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240726060] [2019-11-20 05:55:11,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-20 05:55:11,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:55:11,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-20 05:55:11,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-11-20 05:55:11,818 INFO L87 Difference]: Start difference. First operand 5982 states and 17111 transitions. Second operand 22 states. [2019-11-20 05:55:12,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:55:12,269 INFO L93 Difference]: Finished difference Result 6401 states and 18037 transitions. [2019-11-20 05:55:12,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 05:55:12,269 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 62 [2019-11-20 05:55:12,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:55:12,287 INFO L225 Difference]: With dead ends: 6401 [2019-11-20 05:55:12,288 INFO L226 Difference]: Without dead ends: 6401 [2019-11-20 05:55:12,288 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=549, Unknown=0, NotChecked=0, Total=702 [2019-11-20 05:55:12,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6401 states. [2019-11-20 05:55:12,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6401 to 5766. [2019-11-20 05:55:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5766 states. [2019-11-20 05:55:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 16427 transitions. [2019-11-20 05:55:12,433 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 16427 transitions. Word has length 62 [2019-11-20 05:55:12,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:55:12,435 INFO L462 AbstractCegarLoop]: Abstraction has 5766 states and 16427 transitions. [2019-11-20 05:55:12,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-20 05:55:12,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 16427 transitions. [2019-11-20 05:55:12,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-11-20 05:55:12,450 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:55:12,450 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:55:12,653 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:55:12,654 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:55:12,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:55:12,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1663676489, now seen corresponding path program 1 times [2019-11-20 05:55:12,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:55:12,654 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646117137] [2019-11-20 05:55:12,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:55:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:55:12,961 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:55:12,962 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646117137] [2019-11-20 05:55:12,962 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926399371] [2019-11-20 05:55:12,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:55:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:55:13,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 05:55:13,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:55:13,282 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 05:55:13,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:55:13,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10] total 26 [2019-11-20 05:55:13,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540642746] [2019-11-20 05:55:13,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-20 05:55:13,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:55:13,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-20 05:55:13,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2019-11-20 05:55:13,286 INFO L87 Difference]: Start difference. First operand 5766 states and 16427 transitions. Second operand 26 states. [2019-11-20 05:55:13,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:55:13,571 INFO L93 Difference]: Finished difference Result 1983 states and 5852 transitions. [2019-11-20 05:55:13,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 05:55:13,571 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 69 [2019-11-20 05:55:13,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:55:13,572 INFO L225 Difference]: With dead ends: 1983 [2019-11-20 05:55:13,572 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 05:55:13,573 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=827, Unknown=0, NotChecked=0, Total=1056 [2019-11-20 05:55:13,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 05:55:13,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 05:55:13,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 05:55:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 05:55:13,574 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2019-11-20 05:55:13,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:55:13,574 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:55:13,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-20 05:55:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:55:13,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:55:13,785 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:55:13,788 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 05:55:13,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:55:13 BasicIcfg [2019-11-20 05:55:13,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:55:13,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:55:13,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:55:13,790 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:55:13,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:55:06" (3/4) ... [2019-11-20 05:55:13,794 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:55:13,800 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr [2019-11-20 05:55:13,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 05:55:13,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 05:55:13,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 05:55:13,854 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b5b6de8f-41e9-41b7-8dea-7fb97d9d4ef2/bin/uautomizer/witness.graphml [2019-11-20 05:55:13,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:55:13,856 INFO L168 Benchmark]: Toolchain (without parser) took 8921.24 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 328.7 MB). Free memory was 939.4 MB in the beginning and 837.4 MB in the end (delta: 102.0 MB). Peak memory consumption was 430.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:55:13,856 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:55:13,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:55:13,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.10 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 05:55:13,858 INFO L168 Benchmark]: Boogie Preprocessor took 27.85 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 05:55:13,858 INFO L168 Benchmark]: RCFGBuilder took 376.57 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:55:13,859 INFO L168 Benchmark]: TraceAbstraction took 7765.85 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.0 MB). Free memory was 1.1 GB in the beginning and 840.7 MB in the end (delta: 236.8 MB). Peak memory consumption was 419.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:55:13,859 INFO L168 Benchmark]: Witness Printer took 63.93 ms. Allocated memory is still 1.4 GB. Free memory was 840.7 MB in the beginning and 837.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:55:13,861 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 626.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.10 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. * Boogie Preprocessor took 27.85 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 376.57 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7765.85 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.0 MB). Free memory was 1.1 GB in the beginning and 840.7 MB in the end (delta: 236.8 MB). Peak memory consumption was 419.7 MB. Max. memory is 11.5 GB. * Witness Printer took 63.93 ms. Allocated memory is still 1.4 GB. Free memory was 840.7 MB in the beginning and 837.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 675]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 78 locations, 1 error locations. Result: SAFE, OverallTime: 7.6s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 438 SDtfs, 1508 SDslu, 2077 SDs, 0 SdLazy, 572 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 296 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11498occurred 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: 1.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 3170 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 492 ConstructedInterpolants, 0 QuantifiedInterpolants, 105213 SizeOfPredicates, 20 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 7/82 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...