./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i -s /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6e5b05d1d8a90ddac5eb7cbebfd54f127d9dc56 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:29:02,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:29:02,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:29:02,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:29:02,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:29:02,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:29:02,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:29:02,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:29:02,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:29:02,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:29:02,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:29:02,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:29:02,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:29:02,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:29:02,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:29:02,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:29:02,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:29:02,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:29:02,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:29:02,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:29:02,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:29:02,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:29:02,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:29:02,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:29:02,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:29:02,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:29:02,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:29:02,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:29:02,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:29:02,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:29:02,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:29:02,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:29:02,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:29:02,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:29:02,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:29:02,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:29:02,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:29:02,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:29:02,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:29:02,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:29:02,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:29:02,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:29:02,289 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:29:02,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:29:02,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:29:02,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:29:02,291 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:29:02,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:29:02,291 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:29:02,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:29:02,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:29:02,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:29:02,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:29:02,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:29:02,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:29:02,293 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:29:02,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:29:02,293 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:29:02,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:29:02,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:29:02,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:29:02,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:29:02,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:29:02,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:29:02,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:29:02,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:29:02,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:29:02,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:29:02,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:29:02,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:29:02,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> b6e5b05d1d8a90ddac5eb7cbebfd54f127d9dc56 [2019-11-15 22:29:02,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:29:02,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:29:02,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:29:02,336 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:29:02,337 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:29:02,339 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/../../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i [2019-11-15 22:29:02,401 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/data/d494efe41/c805715e92fd461d8a0ae8bef88c67e9/FLAGad08419bc [2019-11-15 22:29:02,884 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:29:02,885 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/sv-benchmarks/c/pthread-ext/19_time_var_mutex.i [2019-11-15 22:29:02,909 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/data/d494efe41/c805715e92fd461d8a0ae8bef88c67e9/FLAGad08419bc [2019-11-15 22:29:03,217 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/data/d494efe41/c805715e92fd461d8a0ae8bef88c67e9 [2019-11-15 22:29:03,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:29:03,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:29:03,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:29:03,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:29:03,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:29:03,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca44468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03, skipping insertion in model container [2019-11-15 22:29:03,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,236 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:29:03,284 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:29:03,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:29:03,645 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:29:03,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:29:03,755 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:29:03,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03 WrapperNode [2019-11-15 22:29:03,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:29:03,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:29:03,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:29:03,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:29:03,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:29:03,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:29:03,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:29:03,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:29:03,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (1/1) ... [2019-11-15 22:29:03,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:29:03,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:29:03,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:29:03,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:29:03,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:29:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:29:03,911 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-11-15 22:29:03,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-11-15 22:29:03,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:29:03,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:29:03,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:29:03,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 22:29:03,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:29:03,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:29:03,914 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 22:29:04,072 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-11-15 22:29:04,073 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-11-15 22:29:04,074 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-11-15 22:29:04,076 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-11-15 22:29:04,184 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-11-15 22:29:04,185 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-11-15 22:29:04,313 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:29:04,313 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 22:29:04,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:29:04 BoogieIcfgContainer [2019-11-15 22:29:04,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:29:04,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:29:04,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:29:04,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:29:04,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:29:03" (1/3) ... [2019-11-15 22:29:04,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ac1fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:29:04, skipping insertion in model container [2019-11-15 22:29:04,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:29:03" (2/3) ... [2019-11-15 22:29:04,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ac1fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:29:04, skipping insertion in model container [2019-11-15 22:29:04,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:29:04" (3/3) ... [2019-11-15 22:29:04,323 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2019-11-15 22:29:04,365 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,365 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,365 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,366 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,366 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,366 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,366 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,366 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,366 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,368 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,368 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,368 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,368 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,368 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,369 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,369 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,369 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,369 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,370 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,371 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,371 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,371 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,371 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,372 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,373 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,373 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:29:04,380 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 22:29:04,380 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:29:04,388 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-15 22:29:04,401 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-15 22:29:04,420 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:29:04,420 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:29:04,420 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:29:04,420 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:29:04,420 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:29:04,421 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:29:04,421 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:29:04,421 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:29:04,433 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 48 transitions [2019-11-15 22:29:04,476 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 254 states. [2019-11-15 22:29:04,479 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2019-11-15 22:29:04,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 22:29:04,491 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:29:04,492 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:29:04,494 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:29:04,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:29:04,501 INFO L82 PathProgramCache]: Analyzing trace with hash 2058462238, now seen corresponding path program 1 times [2019-11-15 22:29:04,509 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:29:04,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220573636] [2019-11-15 22:29:04,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:29:04,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:29:04,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:29:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:29:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:29:04,747 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220573636] [2019-11-15 22:29:04,748 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:29:04,748 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:29:04,749 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374159429] [2019-11-15 22:29:04,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:29:04,753 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:29:04,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:29:04,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:29:04,769 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2019-11-15 22:29:04,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:29:04,814 INFO L93 Difference]: Finished difference Result 254 states and 474 transitions. [2019-11-15 22:29:04,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:29:04,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-15 22:29:04,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:29:04,828 INFO L225 Difference]: With dead ends: 254 [2019-11-15 22:29:04,828 INFO L226 Difference]: Without dead ends: 214 [2019-11-15 22:29:04,829 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:29:04,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2019-11-15 22:29:04,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2019-11-15 22:29:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2019-11-15 22:29:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 390 transitions. [2019-11-15 22:29:04,889 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 390 transitions. Word has length 19 [2019-11-15 22:29:04,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:29:04,889 INFO L462 AbstractCegarLoop]: Abstraction has 214 states and 390 transitions. [2019-11-15 22:29:04,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:29:04,890 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 390 transitions. [2019-11-15 22:29:04,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 22:29:04,891 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:29:04,891 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:29:04,891 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:29:04,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:29:04,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1827295107, now seen corresponding path program 1 times [2019-11-15 22:29:04,892 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:29:04,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117601240] [2019-11-15 22:29:04,892 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:29:04,893 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:29:04,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:29:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:29:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:29:04,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117601240] [2019-11-15 22:29:04,999 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:29:04,999 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:29:04,999 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374264117] [2019-11-15 22:29:05,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:29:05,000 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:29:05,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:29:05,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:29:05,001 INFO L87 Difference]: Start difference. First operand 214 states and 390 transitions. Second operand 3 states. [2019-11-15 22:29:05,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:29:05,028 INFO L93 Difference]: Finished difference Result 225 states and 391 transitions. [2019-11-15 22:29:05,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:29:05,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-11-15 22:29:05,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:29:05,031 INFO L225 Difference]: With dead ends: 225 [2019-11-15 22:29:05,031 INFO L226 Difference]: Without dead ends: 165 [2019-11-15 22:29:05,032 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:29:05,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-15 22:29:05,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 153. [2019-11-15 22:29:05,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-15 22:29:05,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 259 transitions. [2019-11-15 22:29:05,046 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 259 transitions. Word has length 21 [2019-11-15 22:29:05,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:29:05,047 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 259 transitions. [2019-11-15 22:29:05,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:29:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 259 transitions. [2019-11-15 22:29:05,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 22:29:05,048 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:29:05,048 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:29:05,049 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:29:05,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:29:05,049 INFO L82 PathProgramCache]: Analyzing trace with hash -65983192, now seen corresponding path program 1 times [2019-11-15 22:29:05,049 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:29:05,050 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494804067] [2019-11-15 22:29:05,050 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:29:05,050 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:29:05,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:29:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:29:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:29:05,093 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494804067] [2019-11-15 22:29:05,093 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:29:05,093 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:29:05,093 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202004006] [2019-11-15 22:29:05,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:29:05,094 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:29:05,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:29:05,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:29:05,094 INFO L87 Difference]: Start difference. First operand 153 states and 259 transitions. Second operand 3 states. [2019-11-15 22:29:05,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:29:05,114 INFO L93 Difference]: Finished difference Result 141 states and 229 transitions. [2019-11-15 22:29:05,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:29:05,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-15 22:29:05,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:29:05,116 INFO L225 Difference]: With dead ends: 141 [2019-11-15 22:29:05,116 INFO L226 Difference]: Without dead ends: 109 [2019-11-15 22:29:05,116 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:29:05,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-15 22:29:05,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-11-15 22:29:05,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-15 22:29:05,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 170 transitions. [2019-11-15 22:29:05,125 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 170 transitions. Word has length 23 [2019-11-15 22:29:05,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:29:05,125 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 170 transitions. [2019-11-15 22:29:05,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:29:05,126 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 170 transitions. [2019-11-15 22:29:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-15 22:29:05,127 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:29:05,127 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:29:05,127 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:29:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:29:05,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1828187716, now seen corresponding path program 1 times [2019-11-15 22:29:05,128 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:29:05,128 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819454853] [2019-11-15 22:29:05,129 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:29:05,129 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:29:05,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:29:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:29:05,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:29:05,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819454853] [2019-11-15 22:29:05,207 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:29:05,207 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:29:05,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613391936] [2019-11-15 22:29:05,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:29:05,208 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:29:05,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:29:05,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:29:05,209 INFO L87 Difference]: Start difference. First operand 109 states and 170 transitions. Second operand 3 states. [2019-11-15 22:29:05,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:29:05,216 INFO L93 Difference]: Finished difference Result 109 states and 167 transitions. [2019-11-15 22:29:05,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:29:05,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-11-15 22:29:05,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:29:05,217 INFO L225 Difference]: With dead ends: 109 [2019-11-15 22:29:05,218 INFO L226 Difference]: Without dead ends: 91 [2019-11-15 22:29:05,218 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:29:05,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-15 22:29:05,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-11-15 22:29:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-15 22:29:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 134 transitions. [2019-11-15 22:29:05,225 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 134 transitions. Word has length 28 [2019-11-15 22:29:05,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:29:05,226 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 134 transitions. [2019-11-15 22:29:05,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:29:05,226 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 134 transitions. [2019-11-15 22:29:05,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-15 22:29:05,227 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:29:05,227 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:29:05,228 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:29:05,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:29:05,228 INFO L82 PathProgramCache]: Analyzing trace with hash 146340796, now seen corresponding path program 1 times [2019-11-15 22:29:05,228 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:29:05,228 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122079651] [2019-11-15 22:29:05,229 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:29:05,229 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:29:05,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:29:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:29:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:29:05,308 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122079651] [2019-11-15 22:29:05,308 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:29:05,308 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:29:05,308 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452573076] [2019-11-15 22:29:05,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:29:05,309 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:29:05,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:29:05,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:29:05,309 INFO L87 Difference]: Start difference. First operand 91 states and 134 transitions. Second operand 4 states. [2019-11-15 22:29:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:29:05,344 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2019-11-15 22:29:05,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:29:05,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-11-15 22:29:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:29:05,345 INFO L225 Difference]: With dead ends: 35 [2019-11-15 22:29:05,345 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:29:05,346 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:29:05,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:29:05,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:29:05,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:29:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:29:05,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-11-15 22:29:05,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:29:05,347 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:29:05,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:29:05,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:29:05,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:29:05,350 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 22:29:05,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:29:05 BasicIcfg [2019-11-15 22:29:05,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:29:05,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:29:05,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:29:05,353 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:29:05,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:29:04" (3/4) ... [2019-11-15 22:29:05,357 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:29:05,363 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-11-15 22:29:05,368 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-15 22:29:05,368 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 22:29:05,409 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_64ca4932-ad40-4eb4-b205-5cb13ae08600/bin/uautomizer/witness.graphml [2019-11-15 22:29:05,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:29:05,412 INFO L168 Benchmark]: Toolchain (without parser) took 2189.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -90.7 MB). Peak memory consumption was 83.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:05,412 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:29:05,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -195.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:05,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:29:05,413 INFO L168 Benchmark]: Boogie Preprocessor took 33.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:05,414 INFO L168 Benchmark]: RCFGBuilder took 469.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:05,414 INFO L168 Benchmark]: TraceAbstraction took 1036.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:05,415 INFO L168 Benchmark]: Witness Printer took 57.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:29:05,417 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 533.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -195.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 469.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1036.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. * Witness Printer took 57.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 708]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 3 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 228 SDtfs, 120 SDslu, 118 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 4442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...