./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-array-1.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_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-array-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/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 bd7f48506d18b6e9cdd68178e930b6c5cab4d379 ............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-array-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/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 bd7f48506d18b6e9cdd68178e930b6c5cab4d379 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:38:39,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:38:39,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:38:39,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:38:39,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:38:39,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:38:39,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:38:39,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:38:39,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:38:39,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:38:39,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:38:39,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:38:39,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:38:39,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:38:39,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:38:39,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:38:39,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:38:39,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:38:39,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:38:39,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:38:39,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:38:39,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:38:39,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:38:39,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:38:39,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:38:39,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:38:39,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:38:39,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:38:39,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:38:39,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:38:39,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:38:39,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:38:39,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:38:39,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:38:39,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:38:39,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:38:39,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:38:39,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:38:39,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:38:39,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:38:39,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:38:39,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:38:39,343 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:38:39,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:38:39,344 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:38:39,344 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:38:39,345 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:38:39,345 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:38:39,345 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:38:39,345 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:38:39,345 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:38:39,345 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:38:39,346 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:38:39,346 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:38:39,346 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:38:39,346 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:38:39,346 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:38:39,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:38:39,347 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:38:39,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:38:39,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:38:39,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:38:39,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:38:39,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:38:39,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:38:39,348 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:38:39,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:38:39,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:38:39,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:38:39,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:38:39,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:38:39,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:38:39,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:38:39,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:38:39,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:38:39,350 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:38:39,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:38:39,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:38:39,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:38:39,351 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_19458bae-25c7-4dcc-83d4-81302b420db9/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 -> bd7f48506d18b6e9cdd68178e930b6c5cab4d379 [2019-11-26 02:38:39,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:38:39,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:38:39,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:38:39,511 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:38:39,511 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:38:39,512 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/../../sv-benchmarks/c/pthread-nondet/nondet-array-1.i [2019-11-26 02:38:39,567 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/data/e99928cd7/e165b5b814be43c7a74a674898bfd81d/FLAG012fda929 [2019-11-26 02:38:40,108 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:38:40,112 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/sv-benchmarks/c/pthread-nondet/nondet-array-1.i [2019-11-26 02:38:40,134 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/data/e99928cd7/e165b5b814be43c7a74a674898bfd81d/FLAG012fda929 [2019-11-26 02:38:40,579 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/data/e99928cd7/e165b5b814be43c7a74a674898bfd81d [2019-11-26 02:38:40,582 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:38:40,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:38:40,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:40,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:38:40,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:38:40,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:40" (1/1) ... [2019-11-26 02:38:40,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702bb25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:40, skipping insertion in model container [2019-11-26 02:38:40,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:40" (1/1) ... [2019-11-26 02:38:40,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:38:40,632 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:38:41,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:41,033 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:38:41,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:41,144 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:38:41,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41 WrapperNode [2019-11-26 02:38:41,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:41,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:41,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:38:41,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:38:41,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:41,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:38:41,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:38:41,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:38:41,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (1/1) ... [2019-11-26 02:38:41,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:38:41,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:38:41,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:38:41,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:38:41,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/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 02:38:41,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:38:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:38:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-11-26 02:38:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-11-26 02:38:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:38:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:38:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:38:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:38:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:38:41,316 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 02:38:41,750 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:38:41,750 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-26 02:38:41,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:41 BoogieIcfgContainer [2019-11-26 02:38:41,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:38:41,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:38:41,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:38:41,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:38:41,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:38:40" (1/3) ... [2019-11-26 02:38:41,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb8d1b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:41, skipping insertion in model container [2019-11-26 02:38:41,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:41" (2/3) ... [2019-11-26 02:38:41,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb8d1b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:41, skipping insertion in model container [2019-11-26 02:38:41,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:41" (3/3) ... [2019-11-26 02:38:41,757 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-array-1.i [2019-11-26 02:38:41,788 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,788 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,789 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,789 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,789 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,789 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,789 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,790 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,790 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,790 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,790 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,790 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,791 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,791 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,791 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,791 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,791 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,792 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,792 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,792 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,792 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:41,805 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:38:41,806 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:38:41,813 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:38:41,820 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:38:41,835 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:38:41,835 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:38:41,835 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:38:41,835 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:38:41,835 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:38:41,836 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:38:41,836 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:38:41,836 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:38:41,844 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 87 transitions [2019-11-26 02:38:42,589 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 10834 states. [2019-11-26 02:38:42,591 INFO L276 IsEmpty]: Start isEmpty. Operand 10834 states. [2019-11-26 02:38:42,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-26 02:38:42,603 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:42,604 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] [2019-11-26 02:38:42,605 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:42,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:42,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1596407648, now seen corresponding path program 1 times [2019-11-26 02:38:42,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:38:42,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329447474] [2019-11-26 02:38:42,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:38:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:42,838 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 02:38:42,839 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329447474] [2019-11-26 02:38:42,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:42,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:38:42,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555125826] [2019-11-26 02:38:42,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:38:42,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:38:42,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:38:42,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:38:42,859 INFO L87 Difference]: Start difference. First operand 10834 states. Second operand 2 states. [2019-11-26 02:38:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:43,098 INFO L93 Difference]: Finished difference Result 10834 states and 34284 transitions. [2019-11-26 02:38:43,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:38:43,100 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2019-11-26 02:38:43,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:43,203 INFO L225 Difference]: With dead ends: 10834 [2019-11-26 02:38:43,203 INFO L226 Difference]: Without dead ends: 8342 [2019-11-26 02:38:43,205 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 02:38:43,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8342 states. [2019-11-26 02:38:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8342 to 8342. [2019-11-26 02:38:43,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2019-11-26 02:38:43,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 26302 transitions. [2019-11-26 02:38:43,638 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 26302 transitions. Word has length 37 [2019-11-26 02:38:43,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:43,639 INFO L462 AbstractCegarLoop]: Abstraction has 8342 states and 26302 transitions. [2019-11-26 02:38:43,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:38:43,639 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 26302 transitions. [2019-11-26 02:38:43,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-26 02:38:43,641 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:43,641 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] [2019-11-26 02:38:43,641 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:43,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:43,642 INFO L82 PathProgramCache]: Analyzing trace with hash 919734336, now seen corresponding path program 1 times [2019-11-26 02:38:43,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:38:43,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700400077] [2019-11-26 02:38:43,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:38:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:43,734 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 02:38:43,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700400077] [2019-11-26 02:38:43,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:43,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:38:43,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170892755] [2019-11-26 02:38:43,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:38:43,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:38:43,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:38:43,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:38:43,737 INFO L87 Difference]: Start difference. First operand 8342 states and 26302 transitions. Second operand 4 states. [2019-11-26 02:38:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:43,852 INFO L93 Difference]: Finished difference Result 6028 states and 17037 transitions. [2019-11-26 02:38:43,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:38:43,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-11-26 02:38:43,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:43,893 INFO L225 Difference]: With dead ends: 6028 [2019-11-26 02:38:43,894 INFO L226 Difference]: Without dead ends: 6028 [2019-11-26 02:38:43,894 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:38:43,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2019-11-26 02:38:44,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 5270. [2019-11-26 02:38:44,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5270 states. [2019-11-26 02:38:44,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5270 states to 5270 states and 15173 transitions. [2019-11-26 02:38:44,060 INFO L78 Accepts]: Start accepts. Automaton has 5270 states and 15173 transitions. Word has length 37 [2019-11-26 02:38:44,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:44,061 INFO L462 AbstractCegarLoop]: Abstraction has 5270 states and 15173 transitions. [2019-11-26 02:38:44,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:38:44,061 INFO L276 IsEmpty]: Start isEmpty. Operand 5270 states and 15173 transitions. [2019-11-26 02:38:44,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-26 02:38:44,078 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:44,079 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:44,079 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:44,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:44,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1931044226, now seen corresponding path program 1 times [2019-11-26 02:38:44,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:38:44,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993687397] [2019-11-26 02:38:44,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:38:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:44,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:44,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993687397] [2019-11-26 02:38:44,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909104639] [2019-11-26 02:38:44,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/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 [2019-11-26 02:38:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:44,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-26 02:38:44,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:44,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:38:44,730 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:44,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:38:44,828 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [275938385] [2019-11-26 02:38:44,843 FATAL L310 FreeRefinementEngine]: Exception during interpolant generation: UnsupportedOperationException [2019-11-26 02:38:45,049 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:38:45,050 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:269) at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) at java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1556) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-26 02:38:45,053 INFO L168 Benchmark]: Toolchain (without parser) took 4470.20 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 234.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:45,054 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-26 02:38:45,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:45,055 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.86 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:45,055 INFO L168 Benchmark]: Boogie Preprocessor took 27.96 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. [2019-11-26 02:38:45,056 INFO L168 Benchmark]: RCFGBuilder took 525.13 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:45,056 INFO L168 Benchmark]: TraceAbstraction took 3299.42 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 106.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -63.9 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:45,059 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 561.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 525.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3299.42 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 106.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -63.9 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:294) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:38:46,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:38:46,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:38:46,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:38:46,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:38:46,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:38:46,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:38:46,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:38:47,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:38:47,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:38:47,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:38:47,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:38:47,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:38:47,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:38:47,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:38:47,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:38:47,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:38:47,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:38:47,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:38:47,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:38:47,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:38:47,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:38:47,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:38:47,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:38:47,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:38:47,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:38:47,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:38:47,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:38:47,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:38:47,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:38:47,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:38:47,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:38:47,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:38:47,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:38:47,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:38:47,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:38:47,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:38:47,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:38:47,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:38:47,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:38:47,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:38:47,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:38:47,053 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:38:47,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:38:47,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:38:47,054 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:38:47,054 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:38:47,054 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:38:47,055 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:38:47,055 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:38:47,055 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:38:47,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:38:47,056 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:38:47,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:38:47,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:38:47,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:38:47,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:38:47,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:38:47,057 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:38:47,058 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:38:47,058 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:38:47,058 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:38:47,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:38:47,058 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:38:47,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:38:47,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:38:47,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:38:47,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:38:47,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:38:47,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:38:47,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:38:47,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:38:47,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:38:47,061 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:38:47,061 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:38:47,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:38:47,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:38:47,062 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/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 -> bd7f48506d18b6e9cdd68178e930b6c5cab4d379 [2019-11-26 02:38:47,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:38:47,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:38:47,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:38:47,348 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:38:47,348 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:38:47,349 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/../../sv-benchmarks/c/pthread-nondet/nondet-array-1.i [2019-11-26 02:38:47,404 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/data/9f5028457/66d03a0977004d17889d47fd220924f2/FLAG56b1d260e [2019-11-26 02:38:47,879 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:38:47,879 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/sv-benchmarks/c/pthread-nondet/nondet-array-1.i [2019-11-26 02:38:47,891 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/data/9f5028457/66d03a0977004d17889d47fd220924f2/FLAG56b1d260e [2019-11-26 02:38:47,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/data/9f5028457/66d03a0977004d17889d47fd220924f2 [2019-11-26 02:38:47,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:38:47,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:38:47,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:47,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:38:47,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:38:47,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@107c8ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:47, skipping insertion in model container [2019-11-26 02:38:47,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:47" (1/1) ... [2019-11-26 02:38:47,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:38:47,957 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:38:48,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:48,324 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:38:48,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:48,434 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:38:48,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48 WrapperNode [2019-11-26 02:38:48,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:48,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:48,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:38:48,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:38:48,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (1/1) ... [2019-11-26 02:38:48,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (1/1) ... [2019-11-26 02:38:48,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:48,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:38:48,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:38:48,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:38:48,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (1/1) ... [2019-11-26 02:38:48,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (1/1) ... [2019-11-26 02:38:48,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (1/1) ... [2019-11-26 02:38:48,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (1/1) ... [2019-11-26 02:38:48,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (1/1) ... [2019-11-26 02:38:48,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (1/1) ... [2019-11-26 02:38:48,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (1/1) ... [2019-11-26 02:38:48,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:38:48,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:38:48,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:38:48,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:38:48,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/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 02:38:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-26 02:38:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-26 02:38:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-11-26 02:38:48,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-11-26 02:38:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:38:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:38:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-26 02:38:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:38:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:38:48,650 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:38:49,027 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:38:49,027 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-26 02:38:49,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:49 BoogieIcfgContainer [2019-11-26 02:38:49,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:38:49,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:38:49,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:38:49,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:38:49,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:38:47" (1/3) ... [2019-11-26 02:38:49,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e1ecff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:49, skipping insertion in model container [2019-11-26 02:38:49,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:48" (2/3) ... [2019-11-26 02:38:49,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e1ecff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:49, skipping insertion in model container [2019-11-26 02:38:49,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:49" (3/3) ... [2019-11-26 02:38:49,034 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-array-1.i [2019-11-26 02:38:49,073 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,075 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,075 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,075 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,075 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,076 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,076 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,076 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,076 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,077 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,077 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,077 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,077 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,077 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,078 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,078 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,078 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,078 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,078 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,079 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,079 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:38:49,098 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:38:49,098 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:38:49,103 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:38:49,113 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:38:49,130 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:38:49,131 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:38:49,131 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:38:49,131 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:38:49,131 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:38:49,131 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:38:49,131 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:38:49,132 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:38:49,141 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 80 transitions [2019-11-26 02:38:49,918 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 10827 states. [2019-11-26 02:38:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 10827 states. [2019-11-26 02:38:49,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-26 02:38:49,932 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:49,933 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:49,934 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:49,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:49,940 INFO L82 PathProgramCache]: Analyzing trace with hash 560423243, now seen corresponding path program 1 times [2019-11-26 02:38:49,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:38:49,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [263838344] [2019-11-26 02:38:49,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:50,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-26 02:38:50,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:50,152 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 02:38:50,152 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:50,161 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 02:38:50,162 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [263838344] [2019-11-26 02:38:50,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:50,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-26 02:38:50,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019879180] [2019-11-26 02:38:50,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:38:50,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:38:50,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:38:50,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:38:50,184 INFO L87 Difference]: Start difference. First operand 10827 states. Second operand 2 states. [2019-11-26 02:38:50,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:50,345 INFO L93 Difference]: Finished difference Result 10827 states and 34277 transitions. [2019-11-26 02:38:50,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:38:50,346 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2019-11-26 02:38:50,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:50,450 INFO L225 Difference]: With dead ends: 10827 [2019-11-26 02:38:50,450 INFO L226 Difference]: Without dead ends: 8335 [2019-11-26 02:38:50,456 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 58 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 02:38:50,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8335 states. [2019-11-26 02:38:50,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8335 to 8335. [2019-11-26 02:38:50,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8335 states. [2019-11-26 02:38:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8335 states to 8335 states and 26295 transitions. [2019-11-26 02:38:50,969 INFO L78 Accepts]: Start accepts. Automaton has 8335 states and 26295 transitions. Word has length 30 [2019-11-26 02:38:50,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:50,970 INFO L462 AbstractCegarLoop]: Abstraction has 8335 states and 26295 transitions. [2019-11-26 02:38:50,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:38:50,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8335 states and 26295 transitions. [2019-11-26 02:38:50,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-26 02:38:50,973 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:50,973 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:51,178 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:51,178 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:51,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:51,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1279613868, now seen corresponding path program 1 times [2019-11-26 02:38:51,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:38:51,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [630168474] [2019-11-26 02:38:51,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:51,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-26 02:38:51,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:51,384 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 02:38:51,385 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:51,421 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 02:38:51,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [630168474] [2019-11-26 02:38:51,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:51,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-26 02:38:51,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158858890] [2019-11-26 02:38:51,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:38:51,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:38:51,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:38:51,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:38:51,424 INFO L87 Difference]: Start difference. First operand 8335 states and 26295 transitions. Second operand 6 states. [2019-11-26 02:38:51,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:51,651 INFO L93 Difference]: Finished difference Result 6021 states and 17030 transitions. [2019-11-26 02:38:51,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:38:51,652 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-11-26 02:38:51,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:51,693 INFO L225 Difference]: With dead ends: 6021 [2019-11-26 02:38:51,701 INFO L226 Difference]: Without dead ends: 6021 [2019-11-26 02:38:51,702 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:38:51,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2019-11-26 02:38:51,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 5263. [2019-11-26 02:38:51,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5263 states. [2019-11-26 02:38:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 15166 transitions. [2019-11-26 02:38:51,907 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 15166 transitions. Word has length 30 [2019-11-26 02:38:51,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:51,908 INFO L462 AbstractCegarLoop]: Abstraction has 5263 states and 15166 transitions. [2019-11-26 02:38:51,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:38:51,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 15166 transitions. [2019-11-26 02:38:51,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-26 02:38:51,925 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:51,925 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, 1] [2019-11-26 02:38:52,127 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:52,127 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:52,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:52,128 INFO L82 PathProgramCache]: Analyzing trace with hash -808717181, now seen corresponding path program 1 times [2019-11-26 02:38:52,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:38:52,128 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [233554099] [2019-11-26 02:38:52,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:52,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-26 02:38:52,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:38:52,411 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:38:52,563 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [233554099] [2019-11-26 02:38:52,563 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193831978] [2019-11-26 02:38:52,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/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 [2019-11-26 02:38:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:52,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-26 02:38:52,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:38:52,690 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:38:52,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-26 02:38:52,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6, 7] total 11 [2019-11-26 02:38:52,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092076948] [2019-11-26 02:38:52,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-26 02:38:52,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:38:52,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-26 02:38:52,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:38:52,707 INFO L87 Difference]: Start difference. First operand 5263 states and 15166 transitions. Second operand 11 states. [2019-11-26 02:38:53,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:53,221 INFO L93 Difference]: Finished difference Result 5814 states and 16520 transitions. [2019-11-26 02:38:53,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-26 02:38:53,222 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2019-11-26 02:38:53,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:53,262 INFO L225 Difference]: With dead ends: 5814 [2019-11-26 02:38:53,262 INFO L226 Difference]: Without dead ends: 5814 [2019-11-26 02:38:53,263 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 209 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2019-11-26 02:38:53,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5814 states. [2019-11-26 02:38:53,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5814 to 5179. [2019-11-26 02:38:53,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5179 states. [2019-11-26 02:38:53,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 14910 transitions. [2019-11-26 02:38:53,437 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 14910 transitions. Word has length 56 [2019-11-26 02:38:53,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:53,438 INFO L462 AbstractCegarLoop]: Abstraction has 5179 states and 14910 transitions. [2019-11-26 02:38:53,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-26 02:38:53,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 14910 transitions. [2019-11-26 02:38:53,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-26 02:38:53,453 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:53,454 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, 1] [2019-11-26 02:38:53,856 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:38:53,856 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:53,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:53,857 INFO L82 PathProgramCache]: Analyzing trace with hash -855283560, now seen corresponding path program 1 times [2019-11-26 02:38:53,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:38:53,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1560772040] [2019-11-26 02:38:53,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:38:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:54,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-26 02:38:54,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:38:54,318 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:55,347 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:38:55,347 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1560772040] [2019-11-26 02:38:55,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135211154] [2019-11-26 02:38:55,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:38:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:55,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-26 02:38:55,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-26 02:38:55,729 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-26 02:38:55,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-26 02:38:55,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 6, 8] total 34 [2019-11-26 02:38:55,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195884512] [2019-11-26 02:38:55,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-26 02:38:55,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:38:55,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-26 02:38:55,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=856, Unknown=0, NotChecked=0, Total=1122 [2019-11-26 02:38:55,865 INFO L87 Difference]: Start difference. First operand 5179 states and 14910 transitions. Second operand 34 states. [2019-11-26 02:38:56,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:56,433 INFO L93 Difference]: Finished difference Result 1396 states and 4335 transitions. [2019-11-26 02:38:56,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-26 02:38:56,438 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 70 [2019-11-26 02:38:56,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:56,439 INFO L225 Difference]: With dead ends: 1396 [2019-11-26 02:38:56,439 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:38:56,440 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=425, Invalid=1297, Unknown=0, NotChecked=0, Total=1722 [2019-11-26 02:38:56,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:38:56,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:38:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:38:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:38:56,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2019-11-26 02:38:56,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:56,442 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:38:56,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-26 02:38:56,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:38:56,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:38:56,844 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:38:56,846 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:38:56,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:38:56 BasicIcfg [2019-11-26 02:38:56,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:38:56,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:38:56,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:38:56,848 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:38:56,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:49" (3/4) ... [2019-11-26 02:38:56,851 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:38:56,855 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr [2019-11-26 02:38:56,860 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:38:56,860 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:38:56,860 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:38:56,910 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_19458bae-25c7-4dcc-83d4-81302b420db9/bin/utaipan/witness.graphml [2019-11-26 02:38:56,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:38:56,915 INFO L168 Benchmark]: Toolchain (without parser) took 9007.88 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 357.0 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 194.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:56,916 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:38:56,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:56,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.94 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. [2019-11-26 02:38:56,917 INFO L168 Benchmark]: Boogie Preprocessor took 58.57 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. [2019-11-26 02:38:56,917 INFO L168 Benchmark]: RCFGBuilder took 461.00 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:56,918 INFO L168 Benchmark]: TraceAbstraction took 7818.77 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 197.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -24.3 MB). Peak memory consumption was 172.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:56,925 INFO L168 Benchmark]: Witness Printer took 65.44 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:38:56,927 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 526.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.94 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 58.57 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 461.00 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7818.77 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 197.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -24.3 MB). Peak memory consumption was 172.8 MB. Max. memory is 11.5 GB. * Witness Printer took 65.44 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. 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, 79 locations, 1 error locations. Result: SAFE, OverallTime: 7.7s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 335 SDtfs, 1325 SDslu, 1415 SDs, 0 SdLazy, 318 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 627 GetRequests, 564 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10827occurred 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: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 1393 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 612 ConstructedInterpolants, 1 QuantifiedInterpolants, 113527 SizeOfPredicates, 31 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 57/116 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...