./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix048_tso.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-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix048_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/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 9a5e26fb4410baea08604d7fb69e24366d4b314e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 04:51:08,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:51:08,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:51:08,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:51:08,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:51:08,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:51:08,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:51:08,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:51:08,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:51:08,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:51:08,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:51:08,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:51:08,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:51:08,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:51:08,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:51:08,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:51:08,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:51:08,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:51:08,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:51:08,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:51:08,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:51:08,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:51:08,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:51:08,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:51:08,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:51:08,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:51:08,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:51:08,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:51:08,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:51:08,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:51:08,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:51:08,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:51:08,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:51:08,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:51:08,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:51:08,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:51:08,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:51:08,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:51:08,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:51:08,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:51:08,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:51:08,353 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 04:51:08,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:51:08,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:51:08,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:51:08,370 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:51:08,370 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:51:08,370 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:51:08,370 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 04:51:08,370 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:51:08,370 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:51:08,370 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 04:51:08,371 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 04:51:08,371 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:51:08,371 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 04:51:08,371 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 04:51:08,371 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 04:51:08,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:51:08,372 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:51:08,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 04:51:08,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:51:08,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:51:08,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 04:51:08,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:51:08,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 04:51:08,373 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:51:08,373 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:51:08,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 04:51:08,373 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:51:08,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 04:51:08,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:51:08,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:51:08,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:51:08,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:51:08,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:51:08,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 04:51:08,374 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 04:51:08,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 04:51:08,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 04:51:08,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:51:08,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:51:08,375 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_4b4fdcfe-1a7d-437f-baf6-3231f618b570/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a5e26fb4410baea08604d7fb69e24366d4b314e [2020-12-09 04:51:08,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:51:08,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:51:08,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:51:08,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:51:08,557 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:51:08,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/mix048_tso.opt.i [2020-12-09 04:51:08,601 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/data/f6367602d/44948105511b45328d9b9a5a79139c22/FLAG11981a7a3 [2020-12-09 04:51:09,048 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:51:09,049 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/sv-benchmarks/c/pthread-wmm/mix048_tso.opt.i [2020-12-09 04:51:09,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/data/f6367602d/44948105511b45328d9b9a5a79139c22/FLAG11981a7a3 [2020-12-09 04:51:09,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/data/f6367602d/44948105511b45328d9b9a5a79139c22 [2020-12-09 04:51:09,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:51:09,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:51:09,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:51:09,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:51:09,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:51:09,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31472c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09, skipping insertion in model container [2020-12-09 04:51:09,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:51:09,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:51:09,216 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/sv-benchmarks/c/pthread-wmm/mix048_tso.opt.i[948,961] [2020-12-09 04:51:09,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:51:09,322 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:51:09,331 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/sv-benchmarks/c/pthread-wmm/mix048_tso.opt.i[948,961] [2020-12-09 04:51:09,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:51:09,419 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:51:09,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09 WrapperNode [2020-12-09 04:51:09,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:51:09,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:51:09,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:51:09,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:51:09,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:51:09,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:51:09,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:51:09,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:51:09,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (1/1) ... [2020-12-09 04:51:09,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:51:09,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:51:09,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:51:09,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:51:09,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/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 [2020-12-09 04:51:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 04:51:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-09 04:51:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:51:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 04:51:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-09 04:51:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-09 04:51:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-09 04:51:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-09 04:51:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 04:51:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-09 04:51:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:51:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:51:09,560 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-09 04:51:10,812 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:51:10,812 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-09 04:51:10,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:51:10 BoogieIcfgContainer [2020-12-09 04:51:10,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:51:10,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:51:10,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:51:10,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:51:10,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:51:09" (1/3) ... [2020-12-09 04:51:10,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2e8021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:51:10, skipping insertion in model container [2020-12-09 04:51:10,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:51:09" (2/3) ... [2020-12-09 04:51:10,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2e8021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:51:10, skipping insertion in model container [2020-12-09 04:51:10,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:51:10" (3/3) ... [2020-12-09 04:51:10,820 INFO L111 eAbstractionObserver]: Analyzing ICFG mix048_tso.opt.i [2020-12-09 04:51:10,830 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-09 04:51:10,830 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:51:10,833 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 04:51:10,833 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-09 04:51:10,857 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,857 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,857 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,857 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,877 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,880 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,881 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:51:10,883 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-09 04:51:10,890 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-09 04:51:10,904 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:51:10,904 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 04:51:10,904 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:51:10,905 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:51:10,905 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:51:10,905 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:51:10,905 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:51:10,905 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:51:10,912 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-09 04:51:10,914 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 81 transitions, 172 flow [2020-12-09 04:51:10,916 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 81 transitions, 172 flow [2020-12-09 04:51:10,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 81 transitions, 172 flow [2020-12-09 04:51:10,944 INFO L129 PetriNetUnfolder]: 2/79 cut-off events. [2020-12-09 04:51:10,944 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-09 04:51:10,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-12-09 04:51:10,949 INFO L116 LiptonReduction]: Number of co-enabled transitions 926 [2020-12-09 04:51:11,289 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,289 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:11,291 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,291 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:11,296 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,296 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:51:11,301 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 5, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:51:11,335 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,336 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:11,337 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,337 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:11,341 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,341 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:51:11,345 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 5, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,345 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:51:11,586 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,587 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:11,587 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,588 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:11,591 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,591 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:51:11,594 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 5, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:51:11,618 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,618 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:11,619 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:11,622 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:51:11,625 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 5, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:11,626 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:51:12,002 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-12-09 04:51:12,354 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2020-12-09 04:51:12,480 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-09 04:51:12,615 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:12,615 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:12,617 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-12-09 04:51:12,617 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:51:12,618 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-12-09 04:51:12,618 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:51:12,620 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-12-09 04:51:12,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:51:12,621 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 5, 3, 5, 3, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:12,622 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:12,623 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 5, 3, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:12,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:12,624 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 5, 3, 5, 3, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:12,624 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:12,659 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:12,659 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 04:51:12,661 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 8, 2, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:12,662 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:12,772 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 4, 3, 2, 1] term [2020-12-09 04:51:12,772 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:12,773 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:12,773 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:12,774 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 4, 3, 2, 1] term [2020-12-09 04:51:12,774 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:12,821 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-12-09 04:51:12,822 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:13,015 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 4, 3, 2, 1] term [2020-12-09 04:51:13,015 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:13,016 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:13,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:13,016 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 4, 3, 2, 1] term [2020-12-09 04:51:13,017 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:13,088 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 4, 4, 3, 2, 1] term [2020-12-09 04:51:13,088 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:13,089 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 4, 4, 3, 2, 1] term [2020-12-09 04:51:13,089 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:13,090 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 4, 4, 3, 2, 1] term [2020-12-09 04:51:13,090 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:13,419 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 04:51:13,567 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-09 04:51:13,587 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:13,593 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-09 04:51:13,596 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 8, 2, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:13,596 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:13,623 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-12-09 04:51:13,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:13,626 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-12-09 04:51:13,626 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:51:13,627 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-12-09 04:51:13,628 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:51:13,628 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-12-09 04:51:13,628 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:51:13,630 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 5, 3, 5, 3, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:13,630 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:13,631 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 5, 3, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:13,631 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:13,632 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 5, 3, 5, 3, 4, 3, 4, 3, 2, 1] term [2020-12-09 04:51:13,632 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:51:13,934 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-12-09 04:51:13,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:51:14,759 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-12-09 04:51:15,072 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-12-09 04:51:15,299 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-09 04:51:15,413 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-09 04:51:15,535 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-09 04:51:15,640 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-09 04:51:15,642 INFO L131 LiptonReduction]: Checked pairs total: 2387 [2020-12-09 04:51:15,642 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-12-09 04:51:15,646 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 21 transitions, 52 flow [2020-12-09 04:51:15,657 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 194 states. [2020-12-09 04:51:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states. [2020-12-09 04:51:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 04:51:15,662 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:51:15,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 04:51:15,662 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:51:15,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:51:15,666 INFO L82 PathProgramCache]: Analyzing trace with hash 916200, now seen corresponding path program 1 times [2020-12-09 04:51:15,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:51:15,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142214179] [2020-12-09 04:51:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:51:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:51:15,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:51:15,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142214179] [2020-12-09 04:51:15,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:51:15,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 04:51:15,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117630535] [2020-12-09 04:51:15,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:51:15,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:51:15,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:51:15,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:51:15,814 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 3 states. [2020-12-09 04:51:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:51:15,855 INFO L93 Difference]: Finished difference Result 162 states and 385 transitions. [2020-12-09 04:51:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:51:15,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-09 04:51:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:51:15,867 INFO L225 Difference]: With dead ends: 162 [2020-12-09 04:51:15,867 INFO L226 Difference]: Without dead ends: 137 [2020-12-09 04:51:15,868 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 [2020-12-09 04:51:15,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-12-09 04:51:15,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-12-09 04:51:15,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-12-09 04:51:15,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 320 transitions. [2020-12-09 04:51:15,911 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 320 transitions. Word has length 3 [2020-12-09 04:51:15,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:51:15,911 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 320 transitions. [2020-12-09 04:51:15,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:51:15,911 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 320 transitions. [2020-12-09 04:51:15,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 04:51:15,912 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:51:15,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:51:15,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 04:51:15,913 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:51:15,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:51:15,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1871332009, now seen corresponding path program 1 times [2020-12-09 04:51:15,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:51:15,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528990423] [2020-12-09 04:51:15,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:51:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:51:16,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:51:16,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528990423] [2020-12-09 04:51:16,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:51:16,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 04:51:16,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133470221] [2020-12-09 04:51:16,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:51:16,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:51:16,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:51:16,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:51:16,003 INFO L87 Difference]: Start difference. First operand 137 states and 320 transitions. Second operand 4 states. [2020-12-09 04:51:16,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:51:16,027 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2020-12-09 04:51:16,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 04:51:16,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-09 04:51:16,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:51:16,028 INFO L225 Difference]: With dead ends: 98 [2020-12-09 04:51:16,028 INFO L226 Difference]: Without dead ends: 73 [2020-12-09 04:51:16,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:51:16,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-09 04:51:16,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-12-09 04:51:16,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-09 04:51:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 128 transitions. [2020-12-09 04:51:16,033 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 128 transitions. Word has length 8 [2020-12-09 04:51:16,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:51:16,034 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 128 transitions. [2020-12-09 04:51:16,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:51:16,034 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 128 transitions. [2020-12-09 04:51:16,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 04:51:16,034 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:51:16,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:51:16,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 04:51:16,035 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:51:16,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:51:16,035 INFO L82 PathProgramCache]: Analyzing trace with hash 2106766258, now seen corresponding path program 1 times [2020-12-09 04:51:16,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:51:16,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261127767] [2020-12-09 04:51:16,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:51:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:51:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:51:16,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261127767] [2020-12-09 04:51:16,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:51:16,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 04:51:16,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598426903] [2020-12-09 04:51:16,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 04:51:16,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:51:16,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 04:51:16,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:51:16,117 INFO L87 Difference]: Start difference. First operand 73 states and 128 transitions. Second operand 5 states. [2020-12-09 04:51:16,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:51:16,143 INFO L93 Difference]: Finished difference Result 50 states and 80 transitions. [2020-12-09 04:51:16,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 04:51:16,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-09 04:51:16,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:51:16,144 INFO L225 Difference]: With dead ends: 50 [2020-12-09 04:51:16,144 INFO L226 Difference]: Without dead ends: 41 [2020-12-09 04:51:16,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-09 04:51:16,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-09 04:51:16,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-12-09 04:51:16,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-09 04:51:16,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 64 transitions. [2020-12-09 04:51:16,147 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 64 transitions. Word has length 12 [2020-12-09 04:51:16,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:51:16,147 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 64 transitions. [2020-12-09 04:51:16,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 04:51:16,147 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2020-12-09 04:51:16,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 04:51:16,148 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:51:16,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:51:16,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 04:51:16,148 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:51:16,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:51:16,148 INFO L82 PathProgramCache]: Analyzing trace with hash 738629370, now seen corresponding path program 1 times [2020-12-09 04:51:16,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:51:16,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862646236] [2020-12-09 04:51:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:51:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:51:16,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:51:16,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862646236] [2020-12-09 04:51:16,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:51:16,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 04:51:16,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392662590] [2020-12-09 04:51:16,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 04:51:16,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:51:16,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 04:51:16,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:51:16,249 INFO L87 Difference]: Start difference. First operand 41 states and 64 transitions. Second operand 5 states. [2020-12-09 04:51:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:51:16,287 INFO L93 Difference]: Finished difference Result 56 states and 84 transitions. [2020-12-09 04:51:16,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 04:51:16,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-09 04:51:16,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:51:16,288 INFO L225 Difference]: With dead ends: 56 [2020-12-09 04:51:16,289 INFO L226 Difference]: Without dead ends: 38 [2020-12-09 04:51:16,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 04:51:16,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-09 04:51:16,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2020-12-09 04:51:16,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-09 04:51:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 52 transitions. [2020-12-09 04:51:16,291 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 52 transitions. Word has length 16 [2020-12-09 04:51:16,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:51:16,291 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 52 transitions. [2020-12-09 04:51:16,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 04:51:16,291 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 52 transitions. [2020-12-09 04:51:16,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 04:51:16,292 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:51:16,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:51:16,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 04:51:16,292 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:51:16,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:51:16,293 INFO L82 PathProgramCache]: Analyzing trace with hash 31759496, now seen corresponding path program 2 times [2020-12-09 04:51:16,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:51:16,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803379218] [2020-12-09 04:51:16,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:51:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:51:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:51:16,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803379218] [2020-12-09 04:51:16,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:51:16,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 04:51:16,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20856993] [2020-12-09 04:51:16,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 04:51:16,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:51:16,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 04:51:16,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 04:51:16,404 INFO L87 Difference]: Start difference. First operand 35 states and 52 transitions. Second operand 6 states. [2020-12-09 04:51:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:51:16,434 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2020-12-09 04:51:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 04:51:16,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-09 04:51:16,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:51:16,435 INFO L225 Difference]: With dead ends: 50 [2020-12-09 04:51:16,435 INFO L226 Difference]: Without dead ends: 33 [2020-12-09 04:51:16,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-09 04:51:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-09 04:51:16,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-09 04:51:16,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-09 04:51:16,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 48 transitions. [2020-12-09 04:51:16,437 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 48 transitions. Word has length 16 [2020-12-09 04:51:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:51:16,438 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 48 transitions. [2020-12-09 04:51:16,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 04:51:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2020-12-09 04:51:16,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 04:51:16,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:51:16,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:51:16,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 04:51:16,438 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:51:16,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:51:16,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1894274582, now seen corresponding path program 3 times [2020-12-09 04:51:16,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:51:16,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183036348] [2020-12-09 04:51:16,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:51:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:51:16,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:51:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:51:16,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:51:16,567 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 04:51:16,567 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 04:51:16,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 04:51:16,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:51:16 BasicIcfg [2020-12-09 04:51:16,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 04:51:16,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 04:51:16,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 04:51:16,611 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 04:51:16,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:51:10" (3/4) ... [2020-12-09 04:51:16,612 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 04:51:16,669 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4b4fdcfe-1a7d-437f-baf6-3231f618b570/bin/utaipan/witness.graphml [2020-12-09 04:51:16,669 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 04:51:16,670 INFO L168 Benchmark]: Toolchain (without parser) took 7596.32 ms. Allocated memory was 121.6 MB in the beginning and 224.4 MB in the end (delta: 102.8 MB). Free memory was 90.9 MB in the beginning and 135.9 MB in the end (delta: -45.0 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. [2020-12-09 04:51:16,670 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 71.3 MB. Free memory was 37.7 MB in the beginning and 37.7 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:51:16,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.79 ms. Allocated memory is still 121.6 MB. Free memory was 90.8 MB in the beginning and 57.4 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-12-09 04:51:16,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.11 ms. Allocated memory is still 121.6 MB. Free memory was 57.4 MB in the beginning and 99.6 MB in the end (delta: -42.2 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-12-09 04:51:16,671 INFO L168 Benchmark]: Boogie Preprocessor took 34.02 ms. Allocated memory is still 121.6 MB. Free memory was 99.6 MB in the beginning and 97.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:51:16,671 INFO L168 Benchmark]: RCFGBuilder took 1312.10 ms. Allocated memory was 121.6 MB in the beginning and 155.2 MB in the end (delta: 33.6 MB). Free memory was 97.6 MB in the beginning and 99.7 MB in the end (delta: -2.1 MB). Peak memory consumption was 68.3 MB. Max. memory is 16.1 GB. [2020-12-09 04:51:16,671 INFO L168 Benchmark]: TraceAbstraction took 5794.87 ms. Allocated memory was 155.2 MB in the beginning and 224.4 MB in the end (delta: 69.2 MB). Free memory was 98.7 MB in the beginning and 146.3 MB in the end (delta: -47.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-12-09 04:51:16,672 INFO L168 Benchmark]: Witness Printer took 58.37 ms. Allocated memory is still 224.4 MB. Free memory was 146.3 MB in the beginning and 135.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 04:51:16,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 71.3 MB. Free memory was 37.7 MB in the beginning and 37.7 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.79 ms. Allocated memory is still 121.6 MB. Free memory was 90.8 MB in the beginning and 57.4 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.11 ms. Allocated memory is still 121.6 MB. Free memory was 57.4 MB in the beginning and 99.6 MB in the end (delta: -42.2 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.02 ms. Allocated memory is still 121.6 MB. Free memory was 99.6 MB in the beginning and 97.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1312.10 ms. Allocated memory was 121.6 MB in the beginning and 155.2 MB in the end (delta: 33.6 MB). Free memory was 97.6 MB in the beginning and 99.7 MB in the end (delta: -2.1 MB). Peak memory consumption was 68.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5794.87 ms. Allocated memory was 155.2 MB in the beginning and 224.4 MB in the end (delta: 69.2 MB). Free memory was 98.7 MB in the beginning and 146.3 MB in the end (delta: -47.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * Witness Printer took 58.37 ms. Allocated memory is still 224.4 MB. Free memory was 146.3 MB in the beginning and 135.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 545 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 23 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 53 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.7s, 86 PlacesBefore, 27 PlacesAfterwards, 81 TransitionsBefore, 21 TransitionsAfterwards, 926 CoEnabledTransitionPairs, 7 FixpointIterations, 33 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 71 TotalNumberOfCompositions, 2387 MoverChecksTotal - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p0_EAX = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L807] 0 pthread_t t1295; [L808] FCALL, FORK 0 pthread_create(&t1295, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L738] 1 y$w_buff1 = y$w_buff0 [L739] 1 y$w_buff0 = 1 [L740] 1 y$w_buff1_used = y$w_buff0_used [L741] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L743] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L744] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L745] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L746] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L809] 0 pthread_t t1296; [L810] FCALL, FORK 0 pthread_create(&t1296, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L749] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L766] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 y$flush_delayed = weak$$choice2 [L772] 2 y$mem_tmp = y [L773] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L773] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L774] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L774] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L775] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L775] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L776] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L776] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L777] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L778] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L779] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EAX = y [L781] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L781] 2 y = y$flush_delayed ? y$mem_tmp : y [L782] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L785] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L785] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L785] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L786] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L786] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L787] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L787] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L788] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L788] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L789] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L789] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L794] 2 return 0; [L752] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L752] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L753] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L753] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L754] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L755] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L756] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L812] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L816] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L816] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L816] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L816] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L817] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L817] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L818] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L818] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L819] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L819] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L820] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L820] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L823] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0) VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 80 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 90 SDtfs, 96 SDslu, 164 SDs, 0 SdLazy, 70 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 2982 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 incorrect! Received shutdown request...