./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d652d9f3fdf88a4a943ccd902b0488ac0eab24b5 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:28:42,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:42,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:42,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:42,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:42,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:42,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:42,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:42,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:42,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:42,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:42,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:42,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:42,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:42,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:42,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:42,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:42,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:42,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:42,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:42,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:42,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:42,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:42,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:42,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:42,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:42,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:42,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:42,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:42,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:42,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:42,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:42,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:42,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:42,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:42,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:42,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:42,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:42,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:42,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:42,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:42,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:28:42,299 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:42,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:42,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:42,301 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:42,302 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:42,302 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:42,302 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:28:42,302 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:42,303 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:42,303 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:28:42,310 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:28:42,310 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:42,311 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:28:42,311 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:28:42,311 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:28:42,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:42,312 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:28:42,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:28:42,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:28:42,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:42,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:28:42,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:42,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:28:42,314 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:28:42,314 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:28:42,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:28:42,314 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:42,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:28:42,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:42,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:42,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:42,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:42,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:42,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:28:42,318 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:28:42,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:28:42,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:28:42,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:42,319 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:42,319 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d652d9f3fdf88a4a943ccd902b0488ac0eab24b5 [2021-10-11 02:28:42,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:42,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:42,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:42,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:42,694 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:42,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i [2021-10-11 02:28:42,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/data/e447c2595/8bfcfc269aed4835924e10dd9020f9eb/FLAGdecd66edc [2021-10-11 02:28:43,352 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:28:43,360 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i [2021-10-11 02:28:43,388 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/data/e447c2595/8bfcfc269aed4835924e10dd9020f9eb/FLAGdecd66edc [2021-10-11 02:28:43,586 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/data/e447c2595/8bfcfc269aed4835924e10dd9020f9eb [2021-10-11 02:28:43,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:28:43,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:28:43,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:43,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:28:43,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:28:43,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:43" (1/1) ... [2021-10-11 02:28:43,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eeafe67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:43, skipping insertion in model container [2021-10-11 02:28:43,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:43" (1/1) ... [2021-10-11 02:28:43,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:28:43,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:28:43,888 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i[950,963] [2021-10-11 02:28:44,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:44,146 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:28:44,160 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i[950,963] [2021-10-11 02:28:44,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:44,303 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:28:44,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44 WrapperNode [2021-10-11 02:28:44,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:44,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:44,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:28:44,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:28:44,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:44,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:28:44,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:28:44,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:28:44,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (1/1) ... [2021-10-11 02:28:44,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:28:44,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:28:44,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:28:44,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:28:44,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:44,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:28:44,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-11 02:28:44,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:28:44,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:28:44,502 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-11 02:28:44,502 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-11 02:28:44,504 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-11 02:28:44,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-11 02:28:44,504 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-11 02:28:44,505 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-11 02:28:44,505 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-11 02:28:44,505 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-11 02:28:44,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:28:44,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-11 02:28:44,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:28:44,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:28:44,507 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:28:45,035 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:45,036 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:28:45,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:45 BoogieIcfgContainer [2021-10-11 02:28:45,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:45,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:45,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:45,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:45,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:43" (1/3) ... [2021-10-11 02:28:45,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c28df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:45, skipping insertion in model container [2021-10-11 02:28:45,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:44" (2/3) ... [2021-10-11 02:28:45,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c28df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:45, skipping insertion in model container [2021-10-11 02:28:45,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:45" (3/3) ... [2021-10-11 02:28:45,061 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2021-10-11 02:28:45,077 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:28:45,077 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:45,081 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:28:45,082 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:28:45,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,113 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,114 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,114 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,115 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,115 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,115 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,115 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,115 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,116 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,117 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,117 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,117 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,117 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,117 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,117 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,118 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,118 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,118 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,118 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,119 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,119 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,119 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,120 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,120 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,120 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,120 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,121 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,121 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,121 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,121 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,123 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,124 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,128 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,128 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,128 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,128 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,134 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:28:45,136 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:28:45,147 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-11 02:28:45,168 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:45,169 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:28:45,169 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:45,169 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:45,169 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:45,169 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:45,169 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:45,169 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:45,181 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:28:45,183 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 85 transitions, 190 flow [2021-10-11 02:28:45,186 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 85 transitions, 190 flow [2021-10-11 02:28:45,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 85 transitions, 190 flow [2021-10-11 02:28:45,270 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-10-11 02:28:45,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:28:45,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-10-11 02:28:45,290 INFO L116 LiptonReduction]: Number of co-enabled transitions 1866 [2021-10-11 02:28:47,860 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-10-11 02:28:48,013 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-10-11 02:28:48,480 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-10-11 02:28:48,739 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-10-11 02:28:48,849 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-10-11 02:28:48,921 INFO L131 LiptonReduction]: Checked pairs total: 3411 [2021-10-11 02:28:48,922 INFO L133 LiptonReduction]: Total number of compositions: 70 [2021-10-11 02:28:48,928 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2021-10-11 02:28:48,987 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2021-10-11 02:28:48,989 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2021-10-11 02:28:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:28:48,997 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:48,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:48,999 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:49,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:49,004 INFO L82 PathProgramCache]: Analyzing trace with hash -975438877, now seen corresponding path program 1 times [2021-10-11 02:28:49,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:49,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40238917] [2021-10-11 02:28:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:49,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40238917] [2021-10-11 02:28:49,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:49,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:49,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980440661] [2021-10-11 02:28:49,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:28:49,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:49,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:28:49,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:28:49,225 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2021-10-11 02:28:49,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:49,287 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2021-10-11 02:28:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:28:49,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 02:28:49,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:49,325 INFO L225 Difference]: With dead ends: 850 [2021-10-11 02:28:49,325 INFO L226 Difference]: Without dead ends: 706 [2021-10-11 02:28:49,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:28:49,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-10-11 02:28:49,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2021-10-11 02:28:49,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2021-10-11 02:28:49,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2021-10-11 02:28:49,452 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2021-10-11 02:28:49,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:49,453 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2021-10-11 02:28:49,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:28:49,453 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2021-10-11 02:28:49,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:28:49,456 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:49,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:49,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:28:49,457 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:49,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:49,457 INFO L82 PathProgramCache]: Analyzing trace with hash -173841252, now seen corresponding path program 1 times [2021-10-11 02:28:49,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:49,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468166542] [2021-10-11 02:28:49,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:49,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468166542] [2021-10-11 02:28:49,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:49,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:49,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076936281] [2021-10-11 02:28:49,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:49,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:49,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:49,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:49,663 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2021-10-11 02:28:49,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:49,714 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2021-10-11 02:28:49,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:28:49,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:28:49,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:49,722 INFO L225 Difference]: With dead ends: 802 [2021-10-11 02:28:49,722 INFO L226 Difference]: Without dead ends: 658 [2021-10-11 02:28:49,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:28:49,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-10-11 02:28:49,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2021-10-11 02:28:49,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2021-10-11 02:28:49,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2021-10-11 02:28:49,764 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2021-10-11 02:28:49,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:49,765 INFO L481 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2021-10-11 02:28:49,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:49,765 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2021-10-11 02:28:49,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:28:49,773 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:49,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:49,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:28:49,774 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:49,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:49,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1324654725, now seen corresponding path program 1 times [2021-10-11 02:28:49,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:49,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195198865] [2021-10-11 02:28:49,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:49,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:49,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195198865] [2021-10-11 02:28:49,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:49,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:28:49,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840462230] [2021-10-11 02:28:49,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:28:49,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:49,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:28:49,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:28:49,942 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 5 states. [2021-10-11 02:28:50,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:50,021 INFO L93 Difference]: Finished difference Result 1164 states and 3733 transitions. [2021-10-11 02:28:50,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:28:50,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:28:50,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:50,030 INFO L225 Difference]: With dead ends: 1164 [2021-10-11 02:28:50,031 INFO L226 Difference]: Without dead ends: 902 [2021-10-11 02:28:50,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:28:50,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2021-10-11 02:28:50,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 750. [2021-10-11 02:28:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2021-10-11 02:28:50,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 2414 transitions. [2021-10-11 02:28:50,069 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 2414 transitions. Word has length 12 [2021-10-11 02:28:50,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:50,070 INFO L481 AbstractCegarLoop]: Abstraction has 750 states and 2414 transitions. [2021-10-11 02:28:50,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:28:50,070 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 2414 transitions. [2021-10-11 02:28:50,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:28:50,072 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:50,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:50,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:28:50,073 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:50,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:50,073 INFO L82 PathProgramCache]: Analyzing trace with hash -2143192221, now seen corresponding path program 1 times [2021-10-11 02:28:50,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:50,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950059389] [2021-10-11 02:28:50,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:50,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:50,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950059389] [2021-10-11 02:28:50,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:50,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:50,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609139433] [2021-10-11 02:28:50,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:28:50,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:50,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:28:50,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:28:50,157 INFO L87 Difference]: Start difference. First operand 750 states and 2414 transitions. Second operand 6 states. [2021-10-11 02:28:50,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:50,278 INFO L93 Difference]: Finished difference Result 1208 states and 3753 transitions. [2021-10-11 02:28:50,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:28:50,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2021-10-11 02:28:50,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:50,285 INFO L225 Difference]: With dead ends: 1208 [2021-10-11 02:28:50,285 INFO L226 Difference]: Without dead ends: 658 [2021-10-11 02:28:50,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:28:50,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-10-11 02:28:50,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 538. [2021-10-11 02:28:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2021-10-11 02:28:50,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1664 transitions. [2021-10-11 02:28:50,315 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1664 transitions. Word has length 13 [2021-10-11 02:28:50,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:50,315 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 1664 transitions. [2021-10-11 02:28:50,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:28:50,316 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1664 transitions. [2021-10-11 02:28:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:28:50,317 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:50,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:50,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:28:50,318 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:50,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1683713572, now seen corresponding path program 1 times [2021-10-11 02:28:50,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:50,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604637348] [2021-10-11 02:28:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:50,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:50,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604637348] [2021-10-11 02:28:50,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:50,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:28:50,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368248257] [2021-10-11 02:28:50,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:28:50,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:50,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:28:50,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:28:50,394 INFO L87 Difference]: Start difference. First operand 538 states and 1664 transitions. Second operand 5 states. [2021-10-11 02:28:50,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:50,485 INFO L93 Difference]: Finished difference Result 714 states and 2152 transitions. [2021-10-11 02:28:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:28:50,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-10-11 02:28:50,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:50,492 INFO L225 Difference]: With dead ends: 714 [2021-10-11 02:28:50,492 INFO L226 Difference]: Without dead ends: 658 [2021-10-11 02:28:50,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:28:50,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-10-11 02:28:50,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 498. [2021-10-11 02:28:50,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2021-10-11 02:28:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 1528 transitions. [2021-10-11 02:28:50,517 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 1528 transitions. Word has length 14 [2021-10-11 02:28:50,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:50,518 INFO L481 AbstractCegarLoop]: Abstraction has 498 states and 1528 transitions. [2021-10-11 02:28:50,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:28:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 1528 transitions. [2021-10-11 02:28:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:28:50,519 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:50,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:50,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:28:50,520 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:50,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:50,520 INFO L82 PathProgramCache]: Analyzing trace with hash -672340700, now seen corresponding path program 1 times [2021-10-11 02:28:50,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:50,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412739128] [2021-10-11 02:28:50,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:50,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412739128] [2021-10-11 02:28:50,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:50,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:50,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297644371] [2021-10-11 02:28:50,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:28:50,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:50,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:28:50,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:28:50,584 INFO L87 Difference]: Start difference. First operand 498 states and 1528 transitions. Second operand 5 states. [2021-10-11 02:28:50,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:50,653 INFO L93 Difference]: Finished difference Result 774 states and 2260 transitions. [2021-10-11 02:28:50,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:28:50,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-10-11 02:28:50,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:50,659 INFO L225 Difference]: With dead ends: 774 [2021-10-11 02:28:50,659 INFO L226 Difference]: Without dead ends: 602 [2021-10-11 02:28:50,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:28:50,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2021-10-11 02:28:50,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 442. [2021-10-11 02:28:50,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2021-10-11 02:28:50,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1320 transitions. [2021-10-11 02:28:50,679 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1320 transitions. Word has length 15 [2021-10-11 02:28:50,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:50,679 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 1320 transitions. [2021-10-11 02:28:50,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:28:50,680 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1320 transitions. [2021-10-11 02:28:50,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:28:50,681 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:50,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:50,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:28:50,681 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:50,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:50,682 INFO L82 PathProgramCache]: Analyzing trace with hash -671268224, now seen corresponding path program 1 times [2021-10-11 02:28:50,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:50,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300612827] [2021-10-11 02:28:50,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:50,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300612827] [2021-10-11 02:28:50,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:50,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:50,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581813608] [2021-10-11 02:28:50,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:50,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:50,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:50,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:50,769 INFO L87 Difference]: Start difference. First operand 442 states and 1320 transitions. Second operand 3 states. [2021-10-11 02:28:50,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:50,788 INFO L93 Difference]: Finished difference Result 400 states and 1123 transitions. [2021-10-11 02:28:50,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:50,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2021-10-11 02:28:50,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:50,792 INFO L225 Difference]: With dead ends: 400 [2021-10-11 02:28:50,793 INFO L226 Difference]: Without dead ends: 400 [2021-10-11 02:28:50,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:50,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-10-11 02:28:50,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2021-10-11 02:28:50,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2021-10-11 02:28:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 1123 transitions. [2021-10-11 02:28:50,810 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 1123 transitions. Word has length 15 [2021-10-11 02:28:50,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:50,810 INFO L481 AbstractCegarLoop]: Abstraction has 400 states and 1123 transitions. [2021-10-11 02:28:50,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:50,810 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 1123 transitions. [2021-10-11 02:28:50,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:28:50,812 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:50,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:50,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:28:50,812 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:50,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:50,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1195890947, now seen corresponding path program 1 times [2021-10-11 02:28:50,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:50,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155943309] [2021-10-11 02:28:50,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:50,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:50,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155943309] [2021-10-11 02:28:50,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:50,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:28:50,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143769169] [2021-10-11 02:28:50,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:50,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:50,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:50,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:50,913 INFO L87 Difference]: Start difference. First operand 400 states and 1123 transitions. Second operand 4 states. [2021-10-11 02:28:50,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:50,938 INFO L93 Difference]: Finished difference Result 309 states and 779 transitions. [2021-10-11 02:28:50,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:50,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2021-10-11 02:28:50,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:50,941 INFO L225 Difference]: With dead ends: 309 [2021-10-11 02:28:50,941 INFO L226 Difference]: Without dead ends: 309 [2021-10-11 02:28:50,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:50,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-10-11 02:28:50,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-10-11 02:28:50,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2021-10-11 02:28:50,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 779 transitions. [2021-10-11 02:28:50,967 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 779 transitions. Word has length 16 [2021-10-11 02:28:50,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:50,967 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 779 transitions. [2021-10-11 02:28:50,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:50,967 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 779 transitions. [2021-10-11 02:28:50,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:28:50,968 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:50,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:50,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:28:50,969 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:50,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:50,969 INFO L82 PathProgramCache]: Analyzing trace with hash 852842, now seen corresponding path program 1 times [2021-10-11 02:28:50,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:50,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689887824] [2021-10-11 02:28:50,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:51,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:51,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689887824] [2021-10-11 02:28:51,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:51,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:51,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934344758] [2021-10-11 02:28:51,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:28:51,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:51,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:28:51,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:28:51,060 INFO L87 Difference]: Start difference. First operand 309 states and 779 transitions. Second operand 5 states. [2021-10-11 02:28:51,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:51,093 INFO L93 Difference]: Finished difference Result 236 states and 571 transitions. [2021-10-11 02:28:51,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:28:51,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-10-11 02:28:51,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:51,095 INFO L225 Difference]: With dead ends: 236 [2021-10-11 02:28:51,095 INFO L226 Difference]: Without dead ends: 228 [2021-10-11 02:28:51,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:28:51,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-10-11 02:28:51,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 224. [2021-10-11 02:28:51,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2021-10-11 02:28:51,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 537 transitions. [2021-10-11 02:28:51,103 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 537 transitions. Word has length 17 [2021-10-11 02:28:51,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:51,103 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 537 transitions. [2021-10-11 02:28:51,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:28:51,104 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 537 transitions. [2021-10-11 02:28:51,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:28:51,104 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:51,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:51,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:28:51,105 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:51,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:51,105 INFO L82 PathProgramCache]: Analyzing trace with hash 2041241983, now seen corresponding path program 1 times [2021-10-11 02:28:51,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:51,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532851665] [2021-10-11 02:28:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:51,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:51,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532851665] [2021-10-11 02:28:51,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:51,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:51,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430793436] [2021-10-11 02:28:51,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:28:51,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:51,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:28:51,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:28:51,164 INFO L87 Difference]: Start difference. First operand 224 states and 537 transitions. Second operand 5 states. [2021-10-11 02:28:51,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:51,203 INFO L93 Difference]: Finished difference Result 276 states and 638 transitions. [2021-10-11 02:28:51,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:28:51,203 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2021-10-11 02:28:51,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:51,205 INFO L225 Difference]: With dead ends: 276 [2021-10-11 02:28:51,205 INFO L226 Difference]: Without dead ends: 162 [2021-10-11 02:28:51,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:28:51,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-11 02:28:51,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 158. [2021-10-11 02:28:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2021-10-11 02:28:51,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 338 transitions. [2021-10-11 02:28:51,214 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 338 transitions. Word has length 19 [2021-10-11 02:28:51,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:51,215 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 338 transitions. [2021-10-11 02:28:51,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:28:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 338 transitions. [2021-10-11 02:28:51,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:28:51,216 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:51,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:51,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:28:51,217 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:51,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:51,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1152877885, now seen corresponding path program 2 times [2021-10-11 02:28:51,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:51,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10426930] [2021-10-11 02:28:51,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:51,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:51,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10426930] [2021-10-11 02:28:51,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:51,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:28:51,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191677540] [2021-10-11 02:28:51,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:28:51,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:51,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:28:51,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:28:51,292 INFO L87 Difference]: Start difference. First operand 158 states and 338 transitions. Second operand 6 states. [2021-10-11 02:28:51,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:51,345 INFO L93 Difference]: Finished difference Result 137 states and 298 transitions. [2021-10-11 02:28:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:28:51,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2021-10-11 02:28:51,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:51,346 INFO L225 Difference]: With dead ends: 137 [2021-10-11 02:28:51,346 INFO L226 Difference]: Without dead ends: 53 [2021-10-11 02:28:51,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:28:51,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-11 02:28:51,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-11 02:28:51,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-11 02:28:51,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 96 transitions. [2021-10-11 02:28:51,349 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 96 transitions. Word has length 19 [2021-10-11 02:28:51,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:51,349 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 96 transitions. [2021-10-11 02:28:51,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:28:51,349 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 96 transitions. [2021-10-11 02:28:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 02:28:51,350 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:51,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:51,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:28:51,350 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:51,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:51,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1281872009, now seen corresponding path program 1 times [2021-10-11 02:28:51,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:51,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961779145] [2021-10-11 02:28:51,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:51,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961779145] [2021-10-11 02:28:51,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:51,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:51,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108328683] [2021-10-11 02:28:51,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:28:51,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:51,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:28:51,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:28:51,442 INFO L87 Difference]: Start difference. First operand 53 states and 96 transitions. Second operand 6 states. [2021-10-11 02:28:51,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:51,471 INFO L93 Difference]: Finished difference Result 52 states and 95 transitions. [2021-10-11 02:28:51,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:28:51,471 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2021-10-11 02:28:51,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:51,472 INFO L225 Difference]: With dead ends: 52 [2021-10-11 02:28:51,472 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:28:51,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:28:51,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:28:51,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:28:51,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:28:51,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:28:51,473 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-10-11 02:28:51,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:51,473 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:28:51,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:28:51,473 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:28:51,473 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:28:51,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:28:51,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:28:51 BasicIcfg [2021-10-11 02:28:51,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:28:51,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:28:51,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:28:51,477 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:28:51,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:45" (3/4) ... [2021-10-11 02:28:51,482 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:28:51,489 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-11 02:28:51,490 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-11 02:28:51,490 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-10-11 02:28:51,490 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2021-10-11 02:28:51,496 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-11 02:28:51,496 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:28:51,497 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:28:51,497 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:28:51,551 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9540e4e5-9ce5-4fec-a20d-e591c2970ff0/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:28:51,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:28:51,552 INFO L168 Benchmark]: Toolchain (without parser) took 7961.37 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 67.1 MB in the beginning and 82.3 MB in the end (delta: -15.1 MB). Peak memory consumption was 60.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:51,552 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 84.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:51,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.47 ms. Allocated memory is still 104.9 MB. Free memory was 66.9 MB in the beginning and 59.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:51,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.13 ms. Allocated memory is still 104.9 MB. Free memory was 59.5 MB in the beginning and 57.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:51,555 INFO L168 Benchmark]: Boogie Preprocessor took 28.03 ms. Allocated memory is still 104.9 MB. Free memory was 57.8 MB in the beginning and 56.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:51,556 INFO L168 Benchmark]: RCFGBuilder took 659.35 ms. Allocated memory is still 104.9 MB. Free memory was 56.2 MB in the beginning and 74.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:51,556 INFO L168 Benchmark]: TraceAbstraction took 6436.78 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 73.9 MB in the beginning and 85.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 69.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:51,556 INFO L168 Benchmark]: Witness Printer took 74.03 ms. Allocated memory is still 182.5 MB. Free memory was 85.4 MB in the beginning and 82.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:51,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 84.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 712.47 ms. Allocated memory is still 104.9 MB. Free memory was 66.9 MB in the beginning and 59.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.13 ms. Allocated memory is still 104.9 MB. Free memory was 59.5 MB in the beginning and 57.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.03 ms. Allocated memory is still 104.9 MB. Free memory was 57.8 MB in the beginning and 56.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 659.35 ms. Allocated memory is still 104.9 MB. Free memory was 56.2 MB in the beginning and 74.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6436.78 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 73.9 MB in the beginning and 85.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 69.1 MB. Max. memory is 16.1 GB. * Witness Printer took 74.03 ms. Allocated memory is still 182.5 MB. Free memory was 85.4 MB in the beginning and 82.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1211 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 39 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 114 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.7s, 96 PlacesBefore, 39 PlacesAfterwards, 85 TransitionsBefore, 27 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 70 TotalNumberOfCompositions, 3411 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 304 SDtfs, 351 SDslu, 509 SDs, 0 SdLazy, 181 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 600 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 10614 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...