./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI --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 5ebcae5ebc22604393c914f8d2ecbf0958e5d83a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:23:31,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:31,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:31,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:31,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:31,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:31,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:31,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:31,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:31,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:31,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:31,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:31,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:31,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:31,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:31,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:31,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:31,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:31,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:31,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:31,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:31,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:31,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:31,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:31,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:31,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:31,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:31,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:31,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:31,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:31,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:31,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:31,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:31,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:31,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:31,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:31,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:31,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:31,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:31,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:31,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:31,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:23:31,274 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:31,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:31,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:31,278 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:31,278 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:31,279 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:31,279 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:23:31,279 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:31,279 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:31,280 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:23:31,281 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:23:31,281 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:31,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:23:31,282 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:23:31,282 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:23:31,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:31,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:31,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:23:31,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:31,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:31,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:23:31,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:31,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:23:31,291 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:31,291 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:31,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:23:31,292 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:31,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:23:31,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:31,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:31,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:31,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:31,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:31,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:23:31,296 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:23:31,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:23:31,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:23:31,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:31,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:31,298 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_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ebcae5ebc22604393c914f8d2ecbf0958e5d83a [2021-10-11 02:23:31,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:31,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:31,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:31,577 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:31,577 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:31,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i [2021-10-11 02:23:31,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/data/3148336e9/226ac84f41e241758e12d6c83f72c457/FLAGfb18b90e6 [2021-10-11 02:23:32,145 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:23:32,146 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i [2021-10-11 02:23:32,160 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/data/3148336e9/226ac84f41e241758e12d6c83f72c457/FLAGfb18b90e6 [2021-10-11 02:23:32,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/data/3148336e9/226ac84f41e241758e12d6c83f72c457 [2021-10-11 02:23:32,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:23:32,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:23:32,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:32,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:23:32,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:23:32,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421f525e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32, skipping insertion in model container [2021-10-11 02:23:32,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:23:32,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:32,743 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i[949,962] [2021-10-11 02:23:32,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:32,916 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:23:32,931 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i[949,962] [2021-10-11 02:23:32,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:33,064 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:23:33,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33 WrapperNode [2021-10-11 02:23:33,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:33,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:33,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:23:33,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:23:33,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (1/1) ... [2021-10-11 02:23:33,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (1/1) ... [2021-10-11 02:23:33,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:33,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:23:33,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:23:33,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:23:33,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (1/1) ... [2021-10-11 02:23:33,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (1/1) ... [2021-10-11 02:23:33,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (1/1) ... [2021-10-11 02:23:33,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (1/1) ... [2021-10-11 02:23:33,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (1/1) ... [2021-10-11 02:23:33,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (1/1) ... [2021-10-11 02:23:33,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (1/1) ... [2021-10-11 02:23:33,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:23:33,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:23:33,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:23:33,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:23:33,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:23:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-11 02:23:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:23:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:23:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-11 02:23:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-11 02:23:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-11 02:23:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-11 02:23:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:23:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-11 02:23:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:23:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:23:33,238 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:23:33,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:23:33,634 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:23:33,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:33 BoogieIcfgContainer [2021-10-11 02:23:33,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:23:33,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:23:33,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:23:33,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:23:33,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:23:32" (1/3) ... [2021-10-11 02:23:33,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699b8b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:33, skipping insertion in model container [2021-10-11 02:23:33,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:33" (2/3) ... [2021-10-11 02:23:33,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699b8b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:33, skipping insertion in model container [2021-10-11 02:23:33,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:33" (3/3) ... [2021-10-11 02:23:33,646 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2021-10-11 02:23:33,661 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:23:33,662 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:23:33,665 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:23:33,666 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:23:33,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,692 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,693 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,693 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,693 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,695 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,696 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,696 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,697 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,697 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,698 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,700 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,701 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,706 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,707 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,707 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,707 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:23:33,709 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:23:33,721 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:23:33,744 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:23:33,745 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:23:33,745 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:23:33,745 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:23:33,745 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:23:33,746 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:23:33,746 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:23:33,746 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:23:33,759 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:23:33,762 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 61 transitions, 132 flow [2021-10-11 02:23:33,765 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 61 transitions, 132 flow [2021-10-11 02:23:33,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-10-11 02:23:33,808 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-10-11 02:23:33,808 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:23:33,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-10-11 02:23:33,814 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2021-10-11 02:23:36,142 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-10-11 02:23:36,389 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-10-11 02:23:36,466 INFO L131 LiptonReduction]: Checked pairs total: 1534 [2021-10-11 02:23:36,467 INFO L133 LiptonReduction]: Total number of compositions: 54 [2021-10-11 02:23:36,480 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2021-10-11 02:23:36,497 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2021-10-11 02:23:36,499 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2021-10-11 02:23:36,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:23:36,504 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:36,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:23:36,505 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:36,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:36,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1865753681, now seen corresponding path program 1 times [2021-10-11 02:23:36,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:36,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59352600] [2021-10-11 02:23:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:36,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59352600] [2021-10-11 02:23:36,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:36,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:36,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677916052] [2021-10-11 02:23:36,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:23:36,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:36,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:23:36,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:23:36,714 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2021-10-11 02:23:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:36,738 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2021-10-11 02:23:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:23:36,740 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2021-10-11 02:23:36,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:36,752 INFO L225 Difference]: With dead ends: 90 [2021-10-11 02:23:36,755 INFO L226 Difference]: Without dead ends: 74 [2021-10-11 02:23:36,756 INFO L677 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 [2021-10-11 02:23:36,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-11 02:23:36,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-11 02:23:36,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-10-11 02:23:36,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2021-10-11 02:23:36,812 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2021-10-11 02:23:36,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:36,813 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2021-10-11 02:23:36,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:23:36,814 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2021-10-11 02:23:36,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:23:36,818 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:36,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:36,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:23:36,818 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:36,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:36,819 INFO L82 PathProgramCache]: Analyzing trace with hash -2003798512, now seen corresponding path program 1 times [2021-10-11 02:23:36,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:36,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411387578] [2021-10-11 02:23:36,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:36,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:36,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411387578] [2021-10-11 02:23:36,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:36,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:36,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641082204] [2021-10-11 02:23:37,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:23:37,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:37,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:23:37,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:23:37,002 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2021-10-11 02:23:37,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:37,045 INFO L93 Difference]: Finished difference Result 88 states and 179 transitions. [2021-10-11 02:23:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:37,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:23:37,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:37,050 INFO L225 Difference]: With dead ends: 88 [2021-10-11 02:23:37,050 INFO L226 Difference]: Without dead ends: 72 [2021-10-11 02:23:37,051 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 [2021-10-11 02:23:37,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-11 02:23:37,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-10-11 02:23:37,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-10-11 02:23:37,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 154 transitions. [2021-10-11 02:23:37,077 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 154 transitions. Word has length 7 [2021-10-11 02:23:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:37,077 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 154 transitions. [2021-10-11 02:23:37,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:23:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 154 transitions. [2021-10-11 02:23:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:23:37,079 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:37,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:37,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:23:37,080 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:37,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:37,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1988772591, now seen corresponding path program 1 times [2021-10-11 02:23:37,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:37,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223700723] [2021-10-11 02:23:37,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:37,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223700723] [2021-10-11 02:23:37,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:37,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:37,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325372437] [2021-10-11 02:23:37,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:37,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:37,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:37,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:37,187 INFO L87 Difference]: Start difference. First operand 72 states and 154 transitions. Second operand 5 states. [2021-10-11 02:23:37,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:37,252 INFO L93 Difference]: Finished difference Result 123 states and 245 transitions. [2021-10-11 02:23:37,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:23:37,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-10-11 02:23:37,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:37,254 INFO L225 Difference]: With dead ends: 123 [2021-10-11 02:23:37,254 INFO L226 Difference]: Without dead ends: 84 [2021-10-11 02:23:37,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:23:37,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-11 02:23:37,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2021-10-11 02:23:37,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-10-11 02:23:37,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 136 transitions. [2021-10-11 02:23:37,263 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 136 transitions. Word has length 8 [2021-10-11 02:23:37,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:37,264 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 136 transitions. [2021-10-11 02:23:37,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:37,264 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 136 transitions. [2021-10-11 02:23:37,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:23:37,265 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:37,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:37,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:23:37,265 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:37,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:37,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1988232509, now seen corresponding path program 1 times [2021-10-11 02:23:37,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:37,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638218777] [2021-10-11 02:23:37,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:37,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638218777] [2021-10-11 02:23:37,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:37,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:37,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272719462] [2021-10-11 02:23:37,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:37,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:37,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:37,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:37,371 INFO L87 Difference]: Start difference. First operand 66 states and 136 transitions. Second operand 5 states. [2021-10-11 02:23:37,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:37,394 INFO L93 Difference]: Finished difference Result 72 states and 140 transitions. [2021-10-11 02:23:37,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:37,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-10-11 02:23:37,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:37,397 INFO L225 Difference]: With dead ends: 72 [2021-10-11 02:23:37,398 INFO L226 Difference]: Without dead ends: 60 [2021-10-11 02:23:37,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:23:37,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-11 02:23:37,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-10-11 02:23:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2021-10-11 02:23:37,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 120 transitions. [2021-10-11 02:23:37,417 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 120 transitions. Word has length 8 [2021-10-11 02:23:37,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:37,418 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 120 transitions. [2021-10-11 02:23:37,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 120 transitions. [2021-10-11 02:23:37,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:23:37,420 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:37,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:37,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:23:37,424 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:37,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:37,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1522428958, now seen corresponding path program 1 times [2021-10-11 02:23:37,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:37,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385310173] [2021-10-11 02:23:37,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:37,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:37,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385310173] [2021-10-11 02:23:37,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:37,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:23:37,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754333578] [2021-10-11 02:23:37,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:23:37,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:37,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:23:37,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:23:37,501 INFO L87 Difference]: Start difference. First operand 60 states and 120 transitions. Second operand 6 states. [2021-10-11 02:23:37,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:37,547 INFO L93 Difference]: Finished difference Result 75 states and 145 transitions. [2021-10-11 02:23:37,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:23:37,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2021-10-11 02:23:37,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:37,549 INFO L225 Difference]: With dead ends: 75 [2021-10-11 02:23:37,549 INFO L226 Difference]: Without dead ends: 42 [2021-10-11 02:23:37,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:23:37,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-11 02:23:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-11 02:23:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-10-11 02:23:37,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2021-10-11 02:23:37,558 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 9 [2021-10-11 02:23:37,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:37,558 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2021-10-11 02:23:37,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:23:37,559 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2021-10-11 02:23:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:23:37,560 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:37,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:37,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:23:37,560 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:37,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:37,561 INFO L82 PathProgramCache]: Analyzing trace with hash 567543910, now seen corresponding path program 1 times [2021-10-11 02:23:37,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:37,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722610782] [2021-10-11 02:23:37,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:37,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722610782] [2021-10-11 02:23:37,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:37,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:23:37,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600727412] [2021-10-11 02:23:37,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:23:37,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:37,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:23:37,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:23:37,663 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 6 states. [2021-10-11 02:23:37,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:37,705 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2021-10-11 02:23:37,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:23:37,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2021-10-11 02:23:37,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:37,705 INFO L225 Difference]: With dead ends: 36 [2021-10-11 02:23:37,706 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:23:37,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:23:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:23:37,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:23:37,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:23:37,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:23:37,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-11 02:23:37,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:37,707 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:23:37,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:23:37,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:23:37,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:23:37,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:23:37,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:23:37 BasicIcfg [2021-10-11 02:23:37,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:23:37,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:23:37,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:23:37,710 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:23:37,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:33" (3/4) ... [2021-10-11 02:23:37,715 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:23:37,722 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-11 02:23:37,722 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-11 02:23:37,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-11 02:23:37,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:23:37,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:23:37,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:23:37,768 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9df744e-cadb-429b-892b-7cd5410d6782/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:23:37,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:23:37,769 INFO L168 Benchmark]: Toolchain (without parser) took 5296.32 ms. Allocated memory was 83.9 MB in the beginning and 155.2 MB in the end (delta: 71.3 MB). Free memory was 49.2 MB in the beginning and 64.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 54.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:37,770 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 83.9 MB. Free memory was 62.3 MB in the beginning and 62.2 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:37,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.35 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 48.9 MB in the beginning and 56.3 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:37,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.29 ms. Allocated memory is still 100.7 MB. Free memory was 56.3 MB in the beginning and 54.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:37,772 INFO L168 Benchmark]: Boogie Preprocessor took 26.25 ms. Allocated memory is still 100.7 MB. Free memory was 54.1 MB in the beginning and 53.1 MB in the end (delta: 975.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:37,772 INFO L168 Benchmark]: RCFGBuilder took 484.58 ms. Allocated memory is still 100.7 MB. Free memory was 53.1 MB in the beginning and 70.5 MB in the end (delta: -17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:37,773 INFO L168 Benchmark]: TraceAbstraction took 4071.29 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 70.5 MB in the beginning and 67.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 58.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:37,773 INFO L168 Benchmark]: Witness Printer took 57.98 ms. Allocated memory is still 155.2 MB. Free memory was 67.1 MB in the beginning and 64.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:37,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 83.9 MB. Free memory was 62.3 MB in the beginning and 62.2 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 593.35 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 48.9 MB in the beginning and 56.3 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.29 ms. Allocated memory is still 100.7 MB. Free memory was 56.3 MB in the beginning and 54.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.25 ms. Allocated memory is still 100.7 MB. Free memory was 54.1 MB in the beginning and 53.1 MB in the end (delta: 975.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 484.58 ms. Allocated memory is still 100.7 MB. Free memory was 53.1 MB in the beginning and 70.5 MB in the end (delta: -17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4071.29 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 70.5 MB in the beginning and 67.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 58.8 MB. Max. memory is 16.1 GB. * Witness Printer took 57.98 ms. Allocated memory is still 155.2 MB. Free memory was 67.1 MB in the beginning and 64.0 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 504 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 54 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 66 PlacesBefore, 23 PlacesAfterwards, 61 TransitionsBefore, 17 TransitionsAfterwards, 696 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 1534 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 98 SDtfs, 105 SDslu, 143 SDs, 0 SdLazy, 53 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...