./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7a290263a62578c292b66ee7123308fce6a01e3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:40:11,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:40:11,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:40:11,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:40:11,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:40:11,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:40:11,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:40:12,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:40:12,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:40:12,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:40:12,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:40:12,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:40:12,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:40:12,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:40:12,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:40:12,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:40:12,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:40:12,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:40:12,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:40:12,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:40:12,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:40:12,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:40:12,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:40:12,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:40:12,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:40:12,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:40:12,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:40:12,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:40:12,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:40:12,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:40:12,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:40:12,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:40:12,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:40:12,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:40:12,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:40:12,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:40:12,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:40:12,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:40:12,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:40:12,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:40:12,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:40:12,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:40:12,115 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:40:12,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:40:12,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:40:12,123 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:40:12,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:40:12,123 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:40:12,123 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:40:12,124 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:40:12,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:40:12,124 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:40:12,125 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:40:12,126 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:40:12,126 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:40:12,126 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:40:12,126 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:40:12,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:40:12,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:40:12,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:40:12,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:40:12,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:40:12,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:40:12,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:40:12,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:40:12,129 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:40:12,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:40:12,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:40:12,130 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:40:12,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:40:12,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:40:12,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:40:12,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:40:12,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:40:12,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:40:12,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:40:12,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:40:12,132 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:40:12,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:40:12,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:40:12,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:40:12,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:40:12,133 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a290263a62578c292b66ee7123308fce6a01e3 [2020-11-28 07:40:12,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:40:12,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:40:12,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:40:12,472 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:40:12,473 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:40:12,474 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i [2020-11-28 07:40:12,561 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/data/182832d5d/22cf5e440aed4ac0860ff7cea68e1bb0/FLAG9a02e0720 [2020-11-28 07:40:13,162 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:40:13,163 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i [2020-11-28 07:40:13,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/data/182832d5d/22cf5e440aed4ac0860ff7cea68e1bb0/FLAG9a02e0720 [2020-11-28 07:40:13,476 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/data/182832d5d/22cf5e440aed4ac0860ff7cea68e1bb0 [2020-11-28 07:40:13,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:40:13,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:40:13,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:40:13,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:40:13,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:40:13,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:40:13" (1/1) ... [2020-11-28 07:40:13,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55762608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:13, skipping insertion in model container [2020-11-28 07:40:13,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:40:13" (1/1) ... [2020-11-28 07:40:13,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:40:13,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:40:14,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:40:14,068 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:40:14,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:40:14,220 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:40:14,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14 WrapperNode [2020-11-28 07:40:14,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:40:14,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:40:14,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:40:14,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:40:14,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (1/1) ... [2020-11-28 07:40:14,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (1/1) ... [2020-11-28 07:40:14,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:40:14,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:40:14,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:40:14,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:40:14,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (1/1) ... [2020-11-28 07:40:14,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (1/1) ... [2020-11-28 07:40:14,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (1/1) ... [2020-11-28 07:40:14,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (1/1) ... [2020-11-28 07:40:14,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (1/1) ... [2020-11-28 07:40:14,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (1/1) ... [2020-11-28 07:40:14,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (1/1) ... [2020-11-28 07:40:14,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:40:14,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:40:14,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:40:14,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:40:14,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/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 [2020-11-28 07:40:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:40:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-28 07:40:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:40:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:40:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-28 07:40:14,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-28 07:40:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-28 07:40:14,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-28 07:40:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-28 07:40:14,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-28 07:40:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:40:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-28 07:40:14,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:40:14,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:40:14,375 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-28 07:40:14,783 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:40:14,784 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 07:40:14,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:14 BoogieIcfgContainer [2020-11-28 07:40:14,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:40:14,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:40:14,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:40:14,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:40:14,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:40:13" (1/3) ... [2020-11-28 07:40:14,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fbca06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:40:14, skipping insertion in model container [2020-11-28 07:40:14,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:14" (2/3) ... [2020-11-28 07:40:14,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fbca06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:40:14, skipping insertion in model container [2020-11-28 07:40:14,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:14" (3/3) ... [2020-11-28 07:40:14,796 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2020-11-28 07:40:14,807 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-28 07:40:14,807 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:40:14,812 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:40:14,813 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-28 07:40:14,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,851 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,852 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,854 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,854 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,855 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,857 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,857 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,857 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,858 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,859 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,860 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,862 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,862 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,863 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,863 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,883 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,886 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,889 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:40:14,891 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-28 07:40:14,904 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-28 07:40:14,925 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:40:14,925 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:40:14,925 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:40:14,925 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:40:14,926 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:40:14,926 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:40:14,926 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:40:14,926 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:40:14,938 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-28 07:40:14,940 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-28 07:40:14,943 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-28 07:40:14,945 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-28 07:40:14,989 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-28 07:40:14,989 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-28 07:40:14,993 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-28 07:40:14,996 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-28 07:40:16,953 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-11-28 07:40:17,474 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-28 07:40:17,585 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-28 07:40:17,730 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-11-28 07:40:17,730 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-11-28 07:40:17,734 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-28 07:40:17,774 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-28 07:40:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-28 07:40:17,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:40:17,783 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:17,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:40:17,784 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:40:17,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:17,796 INFO L82 PathProgramCache]: Analyzing trace with hash -853874994, now seen corresponding path program 1 times [2020-11-28 07:40:17,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:17,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481936656] [2020-11-28 07:40:17,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:18,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:40:18,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481936656] [2020-11-28 07:40:18,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:18,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 07:40:18,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410714105] [2020-11-28 07:40:18,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:40:18,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:40:18,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:40:18,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:40:18,107 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-28 07:40:18,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:18,153 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-28 07:40:18,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:40:18,155 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-28 07:40:18,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:18,169 INFO L225 Difference]: With dead ends: 282 [2020-11-28 07:40:18,169 INFO L226 Difference]: Without dead ends: 218 [2020-11-28 07:40:18,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:40:18,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-28 07:40:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-28 07:40:18,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-28 07:40:18,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-28 07:40:18,249 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-28 07:40:18,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:18,250 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-28 07:40:18,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:40:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-28 07:40:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:40:18,258 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:18,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:40:18,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:40:18,259 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:40:18,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:18,262 INFO L82 PathProgramCache]: Analyzing trace with hash -700352928, now seen corresponding path program 1 times [2020-11-28 07:40:18,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:18,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227522236] [2020-11-28 07:40:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:18,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:40:18,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227522236] [2020-11-28 07:40:18,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:18,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:40:18,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401316172] [2020-11-28 07:40:18,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:40:18,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:40:18,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:40:18,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:40:18,410 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-11-28 07:40:18,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:18,441 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-11-28 07:40:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:40:18,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-28 07:40:18,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:18,443 INFO L225 Difference]: With dead ends: 242 [2020-11-28 07:40:18,444 INFO L226 Difference]: Without dead ends: 146 [2020-11-28 07:40:18,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:40:18,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-28 07:40:18,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-28 07:40:18,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-28 07:40:18,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-11-28 07:40:18,457 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-11-28 07:40:18,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:18,457 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-11-28 07:40:18,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:40:18,458 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-11-28 07:40:18,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:40:18,459 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:18,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:40:18,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:40:18,459 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:40:18,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:18,460 INFO L82 PathProgramCache]: Analyzing trace with hash 2063010818, now seen corresponding path program 1 times [2020-11-28 07:40:18,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:18,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334185934] [2020-11-28 07:40:18,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:18,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:40:18,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334185934] [2020-11-28 07:40:18,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:18,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 07:40:18,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369329393] [2020-11-28 07:40:18,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:40:18,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:40:18,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:40:18,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:40:18,517 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-11-28 07:40:18,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:18,523 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-11-28 07:40:18,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:40:18,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-28 07:40:18,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:18,525 INFO L225 Difference]: With dead ends: 140 [2020-11-28 07:40:18,525 INFO L226 Difference]: Without dead ends: 140 [2020-11-28 07:40:18,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:40:18,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-28 07:40:18,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-11-28 07:40:18,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-28 07:40:18,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 343 transitions. [2020-11-28 07:40:18,536 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 343 transitions. Word has length 11 [2020-11-28 07:40:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:18,536 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 343 transitions. [2020-11-28 07:40:18,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:40:18,536 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-11-28 07:40:18,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 07:40:18,538 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:18,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:40:18,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:40:18,538 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:40:18,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:18,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1374781277, now seen corresponding path program 1 times [2020-11-28 07:40:18,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:18,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891003013] [2020-11-28 07:40:18,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:40:18,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891003013] [2020-11-28 07:40:18,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:18,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:40:18,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91151412] [2020-11-28 07:40:18,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:40:18,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:40:18,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:40:18,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:40:18,587 INFO L87 Difference]: Start difference. First operand 140 states and 343 transitions. Second operand 4 states. [2020-11-28 07:40:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:18,609 INFO L93 Difference]: Finished difference Result 158 states and 376 transitions. [2020-11-28 07:40:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:40:18,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-28 07:40:18,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:18,610 INFO L225 Difference]: With dead ends: 158 [2020-11-28 07:40:18,610 INFO L226 Difference]: Without dead ends: 68 [2020-11-28 07:40:18,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:40:18,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-28 07:40:18,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-28 07:40:18,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 07:40:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-11-28 07:40:18,616 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-11-28 07:40:18,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:18,616 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-11-28 07:40:18,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:40:18,618 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-11-28 07:40:18,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 07:40:18,620 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:18,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:40:18,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 07:40:18,624 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:40:18,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:18,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1721558133, now seen corresponding path program 1 times [2020-11-28 07:40:18,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:18,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907694137] [2020-11-28 07:40:18,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:40:18,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907694137] [2020-11-28 07:40:18,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:18,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:40:18,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442204282] [2020-11-28 07:40:18,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:40:18,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:40:18,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:40:18,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:40:18,672 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-11-28 07:40:18,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:18,685 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-11-28 07:40:18,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:40:18,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-28 07:40:18,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:18,686 INFO L225 Difference]: With dead ends: 56 [2020-11-28 07:40:18,686 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:40:18,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:40:18,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:40:18,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:40:18,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:40:18,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:40:18,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-28 07:40:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:18,688 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:40:18,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:40:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:40:18,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:40:18,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 07:40:18,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:40:18 BasicIcfg [2020-11-28 07:40:18,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:40:18,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:40:18,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:40:18,692 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:40:18,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:14" (3/4) ... [2020-11-28 07:40:18,699 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:40:18,707 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-28 07:40:18,708 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-28 07:40:18,708 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-28 07:40:18,715 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-28 07:40:18,715 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:40:18,716 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:40:18,716 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:40:18,779 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_44effc40-098c-4382-9542-514089e6e905/bin/utaipan/witness.graphml [2020-11-28 07:40:18,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:40:18,781 INFO L168 Benchmark]: Toolchain (without parser) took 5301.03 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 58.6 MB in the beginning and 53.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:18,784 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 69.3 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:18,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.27 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 49.9 MB in the end (delta: 8.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:18,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.05 ms. Allocated memory is still 94.4 MB. Free memory was 49.9 MB in the beginning and 48.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:18,787 INFO L168 Benchmark]: Boogie Preprocessor took 26.99 ms. Allocated memory is still 94.4 MB. Free memory was 48.2 MB in the beginning and 46.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:18,789 INFO L168 Benchmark]: RCFGBuilder took 484.59 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 46.5 MB in the beginning and 86.6 MB in the end (delta: -40.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:18,789 INFO L168 Benchmark]: TraceAbstraction took 3903.20 ms. Allocated memory is still 113.2 MB. Free memory was 86.6 MB in the beginning and 56.8 MB in the end (delta: 29.8 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:18,790 INFO L168 Benchmark]: Witness Printer took 87.78 ms. Allocated memory is still 113.2 MB. Free memory was 56.8 MB in the beginning and 53.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:18,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 69.3 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 740.27 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 49.9 MB in the end (delta: 8.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.05 ms. Allocated memory is still 94.4 MB. Free memory was 49.9 MB in the beginning and 48.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.99 ms. Allocated memory is still 94.4 MB. Free memory was 48.2 MB in the beginning and 46.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 484.59 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 46.5 MB in the beginning and 86.6 MB in the end (delta: -40.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3903.20 ms. Allocated memory is still 113.2 MB. Free memory was 86.6 MB in the beginning and 56.8 MB in the end (delta: 29.8 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * Witness Printer took 87.78 ms. Allocated memory is still 113.2 MB. Free memory was 56.8 MB in the beginning and 53.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1074 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 17]: 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 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 56 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...