./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/17_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/17_szymanski.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 163d317c9aa89a15ed49ae50938a3120a9d146c8 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:52:00,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:52:00,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:52:00,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:52:00,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:52:00,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:52:00,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:52:00,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:52:00,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:52:00,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:52:00,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:52:00,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:52:00,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:52:00,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:52:00,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:52:00,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:52:00,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:52:00,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:52:00,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:52:00,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:52:00,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:52:00,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:52:00,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:52:00,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:52:00,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:52:00,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:52:00,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:52:00,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:52:00,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:52:00,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:52:00,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:52:00,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:52:00,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:52:00,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:52:00,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:52:00,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:52:00,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:52:00,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:52:00,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:52:00,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:52:00,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:52:00,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:52:00,237 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:52:00,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:52:00,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:52:00,238 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:52:00,238 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:52:00,238 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:52:00,238 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:52:00,238 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:52:00,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:52:00,239 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:52:00,239 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:52:00,239 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:52:00,239 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:52:00,240 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:52:00,240 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:52:00,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:52:00,240 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:52:00,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:52:00,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:52:00,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:52:00,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:52:00,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:52:00,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:52:00,242 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:52:00,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:52:00,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:52:00,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:52:00,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:52:00,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:52:00,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:52:00,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:52:00,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:52:00,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:52:00,243 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:52:00,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:52:00,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:52:00,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:52:00,244 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan 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 -> Taipan 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 -> 163d317c9aa89a15ed49ae50938a3120a9d146c8 [2019-11-26 02:52:00,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:52:00,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:52:00,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:52:00,426 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:52:00,426 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:52:00,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/../../sv-benchmarks/c/pthread-ext/17_szymanski.i [2019-11-26 02:52:00,476 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/data/cafa53fea/4f8eb45d595941bf9ef21bb426d4afd2/FLAG39cb69e14 [2019-11-26 02:52:00,943 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:52:00,945 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/sv-benchmarks/c/pthread-ext/17_szymanski.i [2019-11-26 02:52:00,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/data/cafa53fea/4f8eb45d595941bf9ef21bb426d4afd2/FLAG39cb69e14 [2019-11-26 02:52:00,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/data/cafa53fea/4f8eb45d595941bf9ef21bb426d4afd2 [2019-11-26 02:52:00,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:52:00,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:52:00,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:52:00,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:52:00,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:52:00,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:52:00" (1/1) ... [2019-11-26 02:52:00,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5388ff6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:00, skipping insertion in model container [2019-11-26 02:52:00,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:52:00" (1/1) ... [2019-11-26 02:52:00,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:52:01,031 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:52:01,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:52:01,418 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:52:01,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:52:01,561 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:52:01,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01 WrapperNode [2019-11-26 02:52:01,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:52:01,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:52:01,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:52:01,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:52:01,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (1/1) ... [2019-11-26 02:52:01,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (1/1) ... [2019-11-26 02:52:01,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:52:01,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:52:01,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:52:01,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:52:01,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (1/1) ... [2019-11-26 02:52:01,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (1/1) ... [2019-11-26 02:52:01,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (1/1) ... [2019-11-26 02:52:01,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (1/1) ... [2019-11-26 02:52:01,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (1/1) ... [2019-11-26 02:52:01,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (1/1) ... [2019-11-26 02:52:01,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (1/1) ... [2019-11-26 02:52:01,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:52:01,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:52:01,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:52:01,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:52:01,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/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 [2019-11-26 02:52:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-11-26 02:52:01,706 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-11-26 02:52:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:52:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:52:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:52:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:52:01,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:52:01,708 WARN L202 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:52:02,040 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:52:02,040 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-26 02:52:02,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:02 BoogieIcfgContainer [2019-11-26 02:52:02,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:52:02,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:52:02,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:52:02,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:52:02,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:52:00" (1/3) ... [2019-11-26 02:52:02,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664b585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:52:02, skipping insertion in model container [2019-11-26 02:52:02,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:01" (2/3) ... [2019-11-26 02:52:02,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664b585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:52:02, skipping insertion in model container [2019-11-26 02:52:02,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:02" (3/3) ... [2019-11-26 02:52:02,049 INFO L109 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2019-11-26 02:52:02,082 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,082 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,082 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,083 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,083 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,083 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,085 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,085 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,085 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,085 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,086 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,086 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,087 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,087 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,088 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,088 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,088 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,088 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:02,099 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:52:02,099 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:52:02,106 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-26 02:52:02,117 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-26 02:52:02,143 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:52:02,144 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:52:02,145 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:52:02,145 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:52:02,145 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:52:02,145 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:52:02,145 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:52:02,145 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:52:02,165 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 143 transitions [2019-11-26 02:52:02,237 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 562 states. [2019-11-26 02:52:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states. [2019-11-26 02:52:02,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 02:52:02,255 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:02,256 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:52:02,257 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:02,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:02,263 INFO L82 PathProgramCache]: Analyzing trace with hash 756901951, now seen corresponding path program 1 times [2019-11-26 02:52:02,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:02,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316509420] [2019-11-26 02:52:02,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:02,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:02,432 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316509420] [2019-11-26 02:52:02,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:02,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:52:02,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339673772] [2019-11-26 02:52:02,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:52:02,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:02,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:52:02,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:52:02,463 INFO L87 Difference]: Start difference. First operand 562 states. Second operand 2 states. [2019-11-26 02:52:02,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:02,491 INFO L93 Difference]: Finished difference Result 331 states and 831 transitions. [2019-11-26 02:52:02,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:52:02,493 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-11-26 02:52:02,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:02,512 INFO L225 Difference]: With dead ends: 331 [2019-11-26 02:52:02,512 INFO L226 Difference]: Without dead ends: 331 [2019-11-26 02:52:02,514 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 [2019-11-26 02:52:02,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2019-11-26 02:52:02,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2019-11-26 02:52:02,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2019-11-26 02:52:02,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 831 transitions. [2019-11-26 02:52:02,580 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 831 transitions. Word has length 22 [2019-11-26 02:52:02,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:02,581 INFO L462 AbstractCegarLoop]: Abstraction has 331 states and 831 transitions. [2019-11-26 02:52:02,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:52:02,581 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 831 transitions. [2019-11-26 02:52:02,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 02:52:02,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:02,583 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:52:02,583 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:02,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:02,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1795255010, now seen corresponding path program 1 times [2019-11-26 02:52:02,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:02,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084866816] [2019-11-26 02:52:02,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:02,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:02,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084866816] [2019-11-26 02:52:02,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:02,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:52:02,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865273515] [2019-11-26 02:52:02,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:52:02,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:02,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:52:02,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:02,666 INFO L87 Difference]: Start difference. First operand 331 states and 831 transitions. Second operand 3 states. [2019-11-26 02:52:02,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:02,706 INFO L93 Difference]: Finished difference Result 526 states and 1352 transitions. [2019-11-26 02:52:02,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:52:02,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-26 02:52:02,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:02,713 INFO L225 Difference]: With dead ends: 526 [2019-11-26 02:52:02,713 INFO L226 Difference]: Without dead ends: 526 [2019-11-26 02:52:02,714 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:02,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-11-26 02:52:02,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 348. [2019-11-26 02:52:02,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-26 02:52:02,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 874 transitions. [2019-11-26 02:52:02,746 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 874 transitions. Word has length 22 [2019-11-26 02:52:02,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:02,746 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 874 transitions. [2019-11-26 02:52:02,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:52:02,747 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 874 transitions. [2019-11-26 02:52:02,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-26 02:52:02,749 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:02,749 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] [2019-11-26 02:52:02,749 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:02,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:02,750 INFO L82 PathProgramCache]: Analyzing trace with hash -317236416, now seen corresponding path program 1 times [2019-11-26 02:52:02,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:02,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393893458] [2019-11-26 02:52:02,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:02,795 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393893458] [2019-11-26 02:52:02,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:02,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:52:02,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110619913] [2019-11-26 02:52:02,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:52:02,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:02,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:52:02,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:02,796 INFO L87 Difference]: Start difference. First operand 348 states and 874 transitions. Second operand 3 states. [2019-11-26 02:52:02,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:02,821 INFO L93 Difference]: Finished difference Result 494 states and 1265 transitions. [2019-11-26 02:52:02,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:52:02,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-26 02:52:02,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:02,826 INFO L225 Difference]: With dead ends: 494 [2019-11-26 02:52:02,826 INFO L226 Difference]: Without dead ends: 494 [2019-11-26 02:52:02,827 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:02,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2019-11-26 02:52:02,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 340. [2019-11-26 02:52:02,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-11-26 02:52:02,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 833 transitions. [2019-11-26 02:52:02,848 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 833 transitions. Word has length 26 [2019-11-26 02:52:02,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:02,848 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 833 transitions. [2019-11-26 02:52:02,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:52:02,849 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 833 transitions. [2019-11-26 02:52:02,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:52:02,852 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:02,852 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] [2019-11-26 02:52:02,853 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:02,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:02,853 INFO L82 PathProgramCache]: Analyzing trace with hash -843371088, now seen corresponding path program 1 times [2019-11-26 02:52:02,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:02,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589600354] [2019-11-26 02:52:02,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:02,936 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589600354] [2019-11-26 02:52:02,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:02,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:52:02,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204385007] [2019-11-26 02:52:02,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:52:02,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:02,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:52:02,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:02,938 INFO L87 Difference]: Start difference. First operand 340 states and 833 transitions. Second operand 3 states. [2019-11-26 02:52:02,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:02,993 INFO L93 Difference]: Finished difference Result 362 states and 867 transitions. [2019-11-26 02:52:02,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:52:02,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-11-26 02:52:02,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:02,997 INFO L225 Difference]: With dead ends: 362 [2019-11-26 02:52:02,997 INFO L226 Difference]: Without dead ends: 362 [2019-11-26 02:52:02,997 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:03,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2019-11-26 02:52:03,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2019-11-26 02:52:03,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2019-11-26 02:52:03,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 867 transitions. [2019-11-26 02:52:03,020 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 867 transitions. Word has length 35 [2019-11-26 02:52:03,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:03,025 INFO L462 AbstractCegarLoop]: Abstraction has 362 states and 867 transitions. [2019-11-26 02:52:03,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:52:03,025 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 867 transitions. [2019-11-26 02:52:03,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:52:03,044 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:03,044 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] [2019-11-26 02:52:03,045 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:03,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:03,045 INFO L82 PathProgramCache]: Analyzing trace with hash -381384280, now seen corresponding path program 2 times [2019-11-26 02:52:03,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:03,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551426251] [2019-11-26 02:52:03,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:03,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:03,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551426251] [2019-11-26 02:52:03,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:03,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:52:03,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988882500] [2019-11-26 02:52:03,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:52:03,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:03,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:52:03,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:03,097 INFO L87 Difference]: Start difference. First operand 362 states and 867 transitions. Second operand 3 states. [2019-11-26 02:52:03,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:03,143 INFO L93 Difference]: Finished difference Result 367 states and 854 transitions. [2019-11-26 02:52:03,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:52:03,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-11-26 02:52:03,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:03,147 INFO L225 Difference]: With dead ends: 367 [2019-11-26 02:52:03,147 INFO L226 Difference]: Without dead ends: 366 [2019-11-26 02:52:03,147 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:03,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-11-26 02:52:03,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 364. [2019-11-26 02:52:03,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2019-11-26 02:52:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 846 transitions. [2019-11-26 02:52:03,162 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 846 transitions. Word has length 35 [2019-11-26 02:52:03,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:03,162 INFO L462 AbstractCegarLoop]: Abstraction has 364 states and 846 transitions. [2019-11-26 02:52:03,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:52:03,162 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 846 transitions. [2019-11-26 02:52:03,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:52:03,166 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:03,166 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] [2019-11-26 02:52:03,166 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:03,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:03,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1986677507, now seen corresponding path program 1 times [2019-11-26 02:52:03,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:03,167 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371807936] [2019-11-26 02:52:03,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:03,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:03,216 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371807936] [2019-11-26 02:52:03,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:03,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:52:03,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373631823] [2019-11-26 02:52:03,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:52:03,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:03,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:52:03,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:03,217 INFO L87 Difference]: Start difference. First operand 364 states and 846 transitions. Second operand 3 states. [2019-11-26 02:52:03,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:03,288 INFO L93 Difference]: Finished difference Result 364 states and 834 transitions. [2019-11-26 02:52:03,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:52:03,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-11-26 02:52:03,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:03,292 INFO L225 Difference]: With dead ends: 364 [2019-11-26 02:52:03,292 INFO L226 Difference]: Without dead ends: 364 [2019-11-26 02:52:03,292 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:03,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-11-26 02:52:03,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2019-11-26 02:52:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2019-11-26 02:52:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 834 transitions. [2019-11-26 02:52:03,306 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 834 transitions. Word has length 35 [2019-11-26 02:52:03,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:03,307 INFO L462 AbstractCegarLoop]: Abstraction has 364 states and 834 transitions. [2019-11-26 02:52:03,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:52:03,307 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 834 transitions. [2019-11-26 02:52:03,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:52:03,310 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:03,310 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] [2019-11-26 02:52:03,310 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:03,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:03,311 INFO L82 PathProgramCache]: Analyzing trace with hash -367224535, now seen corresponding path program 2 times [2019-11-26 02:52:03,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:03,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238321981] [2019-11-26 02:52:03,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:03,386 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238321981] [2019-11-26 02:52:03,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:03,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:52:03,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235551044] [2019-11-26 02:52:03,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:52:03,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:03,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:52:03,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:03,387 INFO L87 Difference]: Start difference. First operand 364 states and 834 transitions. Second operand 3 states. [2019-11-26 02:52:03,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:03,444 INFO L93 Difference]: Finished difference Result 290 states and 654 transitions. [2019-11-26 02:52:03,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:52:03,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-11-26 02:52:03,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:03,445 INFO L225 Difference]: With dead ends: 290 [2019-11-26 02:52:03,445 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:52:03,446 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:52:03,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:52:03,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:52:03,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:52:03,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:52:03,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-11-26 02:52:03,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:03,447 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:52:03,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:52:03,447 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:52:03,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:52:03,450 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:52:03,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:52:03 BasicIcfg [2019-11-26 02:52:03,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:52:03,453 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:52:03,453 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:52:03,453 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:52:03,453 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:02" (3/4) ... [2019-11-26 02:52:03,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:52:03,469 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-11-26 02:52:03,476 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:52:03,476 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:52:03,477 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:52:03,522 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f8244c5c-d3f6-417a-85db-471dba80afd6/bin/utaipan/witness.graphml [2019-11-26 02:52:03,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:52:03,524 INFO L168 Benchmark]: Toolchain (without parser) took 2552.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.7 MB). Free memory was 943.3 MB in the beginning and 999.3 MB in the end (delta: -55.9 MB). Peak memory consumption was 131.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:03,525 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:03,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.7 MB). Free memory was 943.3 MB in the beginning and 1.2 GB in the end (delta: -208.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:03,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:03,528 INFO L168 Benchmark]: Boogie Preprocessor took 46.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:03,530 INFO L168 Benchmark]: RCFGBuilder took 391.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:03,530 INFO L168 Benchmark]: TraceAbstraction took 1410.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.3 MB in the end (delta: 124.7 MB). Peak memory consumption was 124.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:03,533 INFO L168 Benchmark]: Witness Printer took 69.89 ms. Allocated memory is still 1.2 GB. Free memory is still 999.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:03,535 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 589.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.7 MB). Free memory was 943.3 MB in the beginning and 1.2 GB in the end (delta: -208.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 391.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1410.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.3 MB in the end (delta: 124.7 MB). Peak memory consumption was 124.7 MB. Max. memory is 11.5 GB. * Witness Printer took 69.89 ms. Allocated memory is still 1.2 GB. Free memory is still 999.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 705]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 116 locations, 5 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 516 SDtfs, 199 SDslu, 227 SDs, 0 SdLazy, 96 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=562occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 334 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 7175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...