./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe037_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe037_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3fa1ffa37f011d693047d2e96778a69bf7fbb304 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:14:12,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:14:12,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:14:12,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:14:12,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:14:12,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:14:12,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:14:12,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:14:12,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:14:12,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:14:12,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:14:12,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:14:12,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:14:12,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:14:12,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:14:12,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:14:12,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:14:12,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:14:12,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:14:12,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:14:12,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:14:12,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:14:12,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:14:12,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:14:12,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:14:12,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:14:12,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:14:12,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:14:12,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:14:12,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:14:12,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:14:12,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:14:12,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:14:12,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:14:12,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:14:12,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:14:12,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:14:12,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:14:12,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:14:12,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:14:12,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:14:12,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:14:12,412 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:14:12,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:14:12,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:14:12,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:14:12,416 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:14:12,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:14:12,416 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:14:12,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:14:12,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:14:12,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:14:12,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:14:12,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:14:12,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:14:12,419 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:14:12,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:14:12,420 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:14:12,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:14:12,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:14:12,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:14:12,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:14:12,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:14:12,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:14:12,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:14:12,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:14:12,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:14:12,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:14:12,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:14:12,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:14:12,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:14:12,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fa1ffa37f011d693047d2e96778a69bf7fbb304 [2020-11-30 01:14:12,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:14:12,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:14:12,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:14:12,770 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:14:12,772 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:14:12,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe037_pso.oepc.i [2020-11-30 01:14:12,892 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/data/756315702/4e784f323b3d486f83fbaf8ba832c5c5/FLAG4ab26638e [2020-11-30 01:14:13,491 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:14:13,492 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/sv-benchmarks/c/pthread-wmm/safe037_pso.oepc.i [2020-11-30 01:14:13,532 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/data/756315702/4e784f323b3d486f83fbaf8ba832c5c5/FLAG4ab26638e [2020-11-30 01:14:13,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/data/756315702/4e784f323b3d486f83fbaf8ba832c5c5 [2020-11-30 01:14:13,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:14:13,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:14:13,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:14:13,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:14:13,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:14:13,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:14:13" (1/1) ... [2020-11-30 01:14:13,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d7e57c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:13, skipping insertion in model container [2020-11-30 01:14:13,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:14:13" (1/1) ... [2020-11-30 01:14:13,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:14:13,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:14:14,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:14:14,505 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:14:14,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:14:14,653 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:14:14,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14 WrapperNode [2020-11-30 01:14:14,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:14:14,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:14:14,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:14:14,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:14:14,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (1/1) ... [2020-11-30 01:14:14,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (1/1) ... [2020-11-30 01:14:14,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:14:14,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:14:14,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:14:14,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:14:14,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (1/1) ... [2020-11-30 01:14:14,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (1/1) ... [2020-11-30 01:14:14,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (1/1) ... [2020-11-30 01:14:14,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (1/1) ... [2020-11-30 01:14:14,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (1/1) ... [2020-11-30 01:14:14,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (1/1) ... [2020-11-30 01:14:14,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (1/1) ... [2020-11-30 01:14:14,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:14:14,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:14:14,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:14:14,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:14:14,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/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 [2020-11-30 01:14:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:14:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-30 01:14:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:14:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:14:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-30 01:14:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-30 01:14:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-30 01:14:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-30 01:14:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-30 01:14:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-30 01:14:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:14:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-30 01:14:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:14:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:14:14,835 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-30 01:14:15,363 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:14:15,364 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 01:14:15,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:15 BoogieIcfgContainer [2020-11-30 01:14:15,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:14:15,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:14:15,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:14:15,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:14:15,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:14:13" (1/3) ... [2020-11-30 01:14:15,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f89245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:14:15, skipping insertion in model container [2020-11-30 01:14:15,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:14" (2/3) ... [2020-11-30 01:14:15,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f89245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:14:15, skipping insertion in model container [2020-11-30 01:14:15,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:15" (3/3) ... [2020-11-30 01:14:15,382 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_pso.oepc.i [2020-11-30 01:14:15,402 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 01:14:15,402 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:14:15,408 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:14:15,410 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 01:14:15,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,444 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,444 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,446 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,446 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,446 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,448 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,448 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,452 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,452 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,458 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,458 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,458 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,465 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,466 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:14:15,473 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-30 01:14:15,487 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-30 01:14:15,514 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:14:15,514 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:14:15,515 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:14:15,515 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:14:15,515 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:14:15,515 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:14:15,515 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:14:15,515 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:14:15,531 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 01:14:15,534 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-30 01:14:15,539 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-30 01:14:15,541 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-30 01:14:15,598 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-30 01:14:15,598 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-30 01:14:15,603 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-30 01:14:15,606 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-30 01:14:17,054 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-30 01:14:18,052 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-30 01:14:18,188 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-30 01:14:18,390 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-11-30 01:14:18,480 INFO L131 LiptonReduction]: Checked pairs total: 2901 [2020-11-30 01:14:18,480 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-11-30 01:14:18,486 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-11-30 01:14:18,513 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-30 01:14:18,515 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-30 01:14:18,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:14:18,522 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:14:18,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:18,523 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:14:18,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:18,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1054042143, now seen corresponding path program 1 times [2020-11-30 01:14:18,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:18,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978506083] [2020-11-30 01:14:18,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:18,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978506083] [2020-11-30 01:14:18,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:18,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:14:18,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468151140] [2020-11-30 01:14:18,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:14:18,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:18,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:14:18,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:14:18,874 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-11-30 01:14:18,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:18,984 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-11-30 01:14:18,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:14:18,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-30 01:14:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:14:19,011 INFO L225 Difference]: With dead ends: 281 [2020-11-30 01:14:19,012 INFO L226 Difference]: Without dead ends: 180 [2020-11-30 01:14:19,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:14:19,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-30 01:14:19,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-11-30 01:14:19,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-30 01:14:19,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-11-30 01:14:19,127 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-11-30 01:14:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:14:19,128 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-11-30 01:14:19,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:14:19,128 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-11-30 01:14:19,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:14:19,130 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:14:19,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:19,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:14:19,130 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:14:19,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:19,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1550829140, now seen corresponding path program 1 times [2020-11-30 01:14:19,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:19,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535256247] [2020-11-30 01:14:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:19,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:19,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535256247] [2020-11-30 01:14:19,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:19,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:14:19,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356125997] [2020-11-30 01:14:19,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:14:19,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:19,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:14:19,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:14:19,317 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 5 states. [2020-11-30 01:14:19,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:19,393 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-11-30 01:14:19,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:14:19,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-30 01:14:19,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:14:19,396 INFO L225 Difference]: With dead ends: 163 [2020-11-30 01:14:19,396 INFO L226 Difference]: Without dead ends: 126 [2020-11-30 01:14:19,397 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 [2020-11-30 01:14:19,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-30 01:14:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-11-30 01:14:19,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-30 01:14:19,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-11-30 01:14:19,415 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-11-30 01:14:19,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:14:19,416 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-11-30 01:14:19,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:14:19,416 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-11-30 01:14:19,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:14:19,421 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:14:19,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:19,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:14:19,421 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:14:19,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:19,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1926964344, now seen corresponding path program 1 times [2020-11-30 01:14:19,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:19,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178349070] [2020-11-30 01:14:19,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:19,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178349070] [2020-11-30 01:14:19,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:19,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:14:19,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244032885] [2020-11-30 01:14:19,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:14:19,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:19,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:14:19,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:14:19,575 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-11-30 01:14:19,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:19,677 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-11-30 01:14:19,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:14:19,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-30 01:14:19,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:14:19,679 INFO L225 Difference]: With dead ends: 118 [2020-11-30 01:14:19,679 INFO L226 Difference]: Without dead ends: 108 [2020-11-30 01:14:19,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:14:19,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-30 01:14:19,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-30 01:14:19,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-30 01:14:19,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-11-30 01:14:19,690 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-11-30 01:14:19,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:14:19,690 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-11-30 01:14:19,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:14:19,690 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-11-30 01:14:19,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:14:19,692 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:14:19,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:19,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:14:19,692 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:14:19,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:19,693 INFO L82 PathProgramCache]: Analyzing trace with hash 337836795, now seen corresponding path program 1 times [2020-11-30 01:14:19,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:19,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786767221] [2020-11-30 01:14:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:19,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786767221] [2020-11-30 01:14:19,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:19,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:14:19,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593950893] [2020-11-30 01:14:19,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:14:19,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:19,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:14:19,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:14:19,754 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-11-30 01:14:19,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:19,831 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-11-30 01:14:19,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:14:19,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-30 01:14:19,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:14:19,833 INFO L225 Difference]: With dead ends: 133 [2020-11-30 01:14:19,833 INFO L226 Difference]: Without dead ends: 54 [2020-11-30 01:14:19,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:14:19,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-30 01:14:19,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-30 01:14:19,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-30 01:14:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-11-30 01:14:19,836 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-11-30 01:14:19,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:14:19,837 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-11-30 01:14:19,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:14:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-11-30 01:14:19,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:14:19,837 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:14:19,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:19,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:14:19,838 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:14:19,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:19,838 INFO L82 PathProgramCache]: Analyzing trace with hash 64468355, now seen corresponding path program 2 times [2020-11-30 01:14:19,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:19,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647496472] [2020-11-30 01:14:19,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:19,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:19,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647496472] [2020-11-30 01:14:19,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:19,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:14:19,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656849716] [2020-11-30 01:14:19,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:14:19,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:19,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:14:19,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:14:19,888 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-11-30 01:14:19,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:19,922 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-11-30 01:14:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:14:19,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-30 01:14:19,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:14:19,923 INFO L225 Difference]: With dead ends: 67 [2020-11-30 01:14:19,924 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 01:14:19,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:14:19,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 01:14:19,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 01:14:19,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 01:14:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-30 01:14:19,927 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-11-30 01:14:19,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:14:19,927 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-30 01:14:19,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:14:19,927 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-30 01:14:19,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:14:19,931 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:14:19,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:19,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:14:19,932 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:14:19,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:19,933 INFO L82 PathProgramCache]: Analyzing trace with hash -339277395, now seen corresponding path program 3 times [2020-11-30 01:14:19,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:19,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391205185] [2020-11-30 01:14:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:19,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:19,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391205185] [2020-11-30 01:14:19,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:19,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:14:19,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362727705] [2020-11-30 01:14:19,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:14:19,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:19,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:14:20,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:14:20,000 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-11-30 01:14:20,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:20,014 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-11-30 01:14:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:14:20,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-30 01:14:20,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:14:20,015 INFO L225 Difference]: With dead ends: 29 [2020-11-30 01:14:20,015 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:14:20,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:14:20,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:14:20,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:14:20,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:14:20,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:14:20,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-30 01:14:20,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:14:20,016 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:14:20,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:14:20,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:14:20,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:14:20,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:14:20,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:14:20 BasicIcfg [2020-11-30 01:14:20,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:14:20,019 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:14:20,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:14:20,019 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:14:20,020 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:15" (3/4) ... [2020-11-30 01:14:20,022 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:14:20,028 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-30 01:14:20,028 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-30 01:14:20,028 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-30 01:14:20,034 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-30 01:14:20,034 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:14:20,034 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:14:20,035 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:14:20,076 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b2872547-02bc-433b-aec1-4fbb9411d534/bin/uautomizer/witness.graphml [2020-11-30 01:14:20,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:14:20,078 INFO L168 Benchmark]: Toolchain (without parser) took 6267.26 ms. Allocated memory was 104.9 MB in the beginning and 161.5 MB in the end (delta: 56.6 MB). Free memory was 75.7 MB in the beginning and 78.1 MB in the end (delta: -2.4 MB). Peak memory consumption was 54.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:14:20,079 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory is still 62.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:14:20,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.33 ms. Allocated memory is still 104.9 MB. Free memory was 75.7 MB in the beginning and 59.3 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:14:20,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.89 ms. Allocated memory is still 104.9 MB. Free memory was 59.3 MB in the beginning and 57.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:14:20,081 INFO L168 Benchmark]: Boogie Preprocessor took 30.99 ms. Allocated memory is still 104.9 MB. Free memory was 57.6 MB in the beginning and 56.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:14:20,082 INFO L168 Benchmark]: RCFGBuilder took 618.18 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 56.2 MB in the beginning and 95.3 MB in the end (delta: -39.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:14:20,083 INFO L168 Benchmark]: TraceAbstraction took 4646.65 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 94.6 MB in the beginning and 81.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:14:20,084 INFO L168 Benchmark]: Witness Printer took 57.64 ms. Allocated memory is still 161.5 MB. Free memory was 81.2 MB in the beginning and 78.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:14:20,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory is still 62.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 838.33 ms. Allocated memory is still 104.9 MB. Free memory was 75.7 MB in the beginning and 59.3 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.89 ms. Allocated memory is still 104.9 MB. Free memory was 59.3 MB in the beginning and 57.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.99 ms. Allocated memory is still 104.9 MB. Free memory was 57.6 MB in the beginning and 56.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 618.18 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 56.2 MB in the beginning and 95.3 MB in the end (delta: -39.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4646.65 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 94.6 MB in the beginning and 81.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * Witness Printer took 57.64 ms. Allocated memory is still 161.5 MB. Free memory was 81.2 MB in the beginning and 78.1 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 950 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.9s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 2901 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 115 SDtfs, 168 SDslu, 151 SDs, 0 SdLazy, 57 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2874 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...