./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_tso.opt.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_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/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 d7b99eb0691db756f3c08dc52ba10dd69081a5de ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:30:02,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:30:02,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:30:02,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:30:02,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:30:02,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:30:02,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:30:02,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:30:02,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:30:02,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:30:02,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:30:02,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:30:02,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:30:02,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:30:02,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:30:02,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:30:02,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:30:02,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:30:02,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:30:02,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:30:02,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:30:02,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:30:02,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:30:02,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:30:02,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:30:02,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:30:02,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:30:02,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:30:02,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:30:02,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:30:02,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:30:02,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:30:02,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:30:02,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:30:02,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:30:02,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:30:02,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:30:02,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:30:02,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:30:02,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:30:02,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:30:02,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:30:02,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:30:02,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:30:02,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:30:02,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:30:02,907 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:30:02,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:30:02,907 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:30:02,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:30:02,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:30:02,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:30:02,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:30:02,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:30:02,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:30:02,911 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:30:02,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:30:02,911 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:30:02,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:30:02,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:30:02,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:30:02,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:30:02,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:30:02,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:30:02,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:30:02,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:30:02,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:30:02,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:30:02,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:30:02,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:30:02,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:30:02,915 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_f145c646-6518-408c-8de9-caf575c9de05/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b99eb0691db756f3c08dc52ba10dd69081a5de [2020-11-30 01:30:03,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:30:03,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:30:03,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:30:03,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:30:03,317 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:30:03,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i [2020-11-30 01:30:03,432 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/data/1c0062623/a77de9b7df8d40af8371a35e3bb73b6a/FLAG3c7a96de2 [2020-11-30 01:30:04,054 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:30:04,055 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i [2020-11-30 01:30:04,077 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/data/1c0062623/a77de9b7df8d40af8371a35e3bb73b6a/FLAG3c7a96de2 [2020-11-30 01:30:04,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/data/1c0062623/a77de9b7df8d40af8371a35e3bb73b6a [2020-11-30 01:30:04,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:30:04,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:30:04,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:30:04,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:30:04,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:30:04,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:30:04" (1/1) ... [2020-11-30 01:30:04,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35810917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:04, skipping insertion in model container [2020-11-30 01:30:04,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:30:04" (1/1) ... [2020-11-30 01:30:04,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:30:04,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:30:04,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:30:04,962 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:30:05,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:30:05,129 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:30:05,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05 WrapperNode [2020-11-30 01:30:05,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:30:05,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:30:05,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:30:05,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:30:05,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (1/1) ... [2020-11-30 01:30:05,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (1/1) ... [2020-11-30 01:30:05,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:30:05,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:30:05,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:30:05,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:30:05,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (1/1) ... [2020-11-30 01:30:05,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (1/1) ... [2020-11-30 01:30:05,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (1/1) ... [2020-11-30 01:30:05,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (1/1) ... [2020-11-30 01:30:05,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (1/1) ... [2020-11-30 01:30:05,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (1/1) ... [2020-11-30 01:30:05,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (1/1) ... [2020-11-30 01:30:05,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:30:05,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:30:05,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:30:05,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:30:05,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/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 01:30:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:30:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-30 01:30:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:30:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:30:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-30 01:30:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-30 01:30:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-30 01:30:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-30 01:30:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:30:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-30 01:30:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:30:05,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:30:05,386 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 01:30:05,848 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:30:05,848 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 01:30:05,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:05 BoogieIcfgContainer [2020-11-30 01:30:05,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:30:05,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:30:05,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:30:05,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:30:05,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:30:04" (1/3) ... [2020-11-30 01:30:05,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d2ea85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:30:05, skipping insertion in model container [2020-11-30 01:30:05,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:05" (2/3) ... [2020-11-30 01:30:05,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d2ea85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:30:05, skipping insertion in model container [2020-11-30 01:30:05,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:05" (3/3) ... [2020-11-30 01:30:05,860 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.opt.i [2020-11-30 01:30:05,874 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 01:30:05,875 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:30:05,880 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:30:05,881 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 01:30:05,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,910 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,910 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,932 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,932 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:30:05,942 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-30 01:30:05,955 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 01:30:05,981 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:30:05,982 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:30:05,982 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:30:05,982 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:30:05,983 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:30:05,983 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:30:05,984 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:30:05,985 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:30:06,007 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 01:30:06,010 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 138 flow [2020-11-30 01:30:06,014 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 138 flow [2020-11-30 01:30:06,017 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 138 flow [2020-11-30 01:30:06,113 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2020-11-30 01:30:06,114 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-30 01:30:06,118 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-30 01:30:06,120 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-30 01:30:07,809 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-30 01:30:08,833 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-30 01:30:09,119 INFO L131 LiptonReduction]: Checked pairs total: 1636 [2020-11-30 01:30:09,119 INFO L133 LiptonReduction]: Total number of compositions: 67 [2020-11-30 01:30:09,126 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-11-30 01:30:09,148 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-11-30 01:30:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-30 01:30:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:30:09,159 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:09,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:30:09,160 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:09,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:09,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1312316534, now seen corresponding path program 1 times [2020-11-30 01:30:09,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:09,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861164290] [2020-11-30 01:30:09,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:09,483 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 01:30:09,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861164290] [2020-11-30 01:30:09,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:09,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:30:09,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553747343] [2020-11-30 01:30:09,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:09,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:09,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:09,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:09,509 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-11-30 01:30:09,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:09,548 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-11-30 01:30:09,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:09,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 01:30:09,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:09,563 INFO L225 Difference]: With dead ends: 72 [2020-11-30 01:30:09,563 INFO L226 Difference]: Without dead ends: 56 [2020-11-30 01:30:09,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:09,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-30 01:30:09,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-11-30 01:30:09,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-30 01:30:09,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-11-30 01:30:09,613 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-11-30 01:30:09,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:09,613 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-11-30 01:30:09,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:09,614 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-11-30 01:30:09,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:30:09,615 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:09,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:09,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:30:09,616 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:09,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:09,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2038978314, now seen corresponding path program 1 times [2020-11-30 01:30:09,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:09,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84731541] [2020-11-30 01:30:09,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:09,766 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 01:30:09,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84731541] [2020-11-30 01:30:09,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:09,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:30:09,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329940802] [2020-11-30 01:30:09,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:09,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:09,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:09,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:09,770 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 3 states. [2020-11-30 01:30:09,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:09,783 INFO L93 Difference]: Finished difference Result 53 states and 106 transitions. [2020-11-30 01:30:09,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:09,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-30 01:30:09,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:09,786 INFO L225 Difference]: With dead ends: 53 [2020-11-30 01:30:09,786 INFO L226 Difference]: Without dead ends: 53 [2020-11-30 01:30:09,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-30 01:30:09,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-30 01:30:09,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-30 01:30:09,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 106 transitions. [2020-11-30 01:30:09,801 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 106 transitions. Word has length 7 [2020-11-30 01:30:09,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:09,801 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 106 transitions. [2020-11-30 01:30:09,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:09,802 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 106 transitions. [2020-11-30 01:30:09,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:30:09,803 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:09,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:09,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:30:09,804 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:09,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:09,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1216180213, now seen corresponding path program 1 times [2020-11-30 01:30:09,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:09,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432437001] [2020-11-30 01:30:09,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:09,909 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 01:30:09,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432437001] [2020-11-30 01:30:09,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:09,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:30:09,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804022890] [2020-11-30 01:30:09,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:30:09,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:09,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:30:09,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:30:09,911 INFO L87 Difference]: Start difference. First operand 53 states and 106 transitions. Second operand 4 states. [2020-11-30 01:30:09,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:09,954 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-11-30 01:30:09,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:30:09,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-30 01:30:09,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:09,958 INFO L225 Difference]: With dead ends: 60 [2020-11-30 01:30:09,958 INFO L226 Difference]: Without dead ends: 36 [2020-11-30 01:30:09,959 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 01:30:09,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-30 01:30:09,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-30 01:30:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-30 01:30:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-11-30 01:30:09,976 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-11-30 01:30:09,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:09,976 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-11-30 01:30:09,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:30:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-11-30 01:30:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:30:09,978 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:09,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:09,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:30:09,979 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:09,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:09,980 INFO L82 PathProgramCache]: Analyzing trace with hash -953134969, now seen corresponding path program 1 times [2020-11-30 01:30:09,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:09,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725993441] [2020-11-30 01:30:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:10,106 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 01:30:10,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725993441] [2020-11-30 01:30:10,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:10,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:30:10,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914480838] [2020-11-30 01:30:10,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:30:10,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:10,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:30:10,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:30:10,109 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-11-30 01:30:10,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:10,149 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-11-30 01:30:10,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:30:10,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-30 01:30:10,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:10,151 INFO L225 Difference]: With dead ends: 39 [2020-11-30 01:30:10,152 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 01:30:10,152 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 01:30:10,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 01:30:10,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-30 01:30:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 01:30:10,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-11-30 01:30:10,157 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 9 [2020-11-30 01:30:10,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:10,158 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-11-30 01:30:10,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:30:10,158 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-11-30 01:30:10,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:30:10,158 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:10,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:10,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:30:10,159 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:10,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:10,160 INFO L82 PathProgramCache]: Analyzing trace with hash 466385382, now seen corresponding path program 1 times [2020-11-30 01:30:10,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:10,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847309874] [2020-11-30 01:30:10,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:10,273 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 01:30:10,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847309874] [2020-11-30 01:30:10,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:10,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:10,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580241646] [2020-11-30 01:30:10,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:30:10,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:10,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:30:10,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:30:10,276 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 5 states. [2020-11-30 01:30:10,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:10,364 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2020-11-30 01:30:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:30:10,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-30 01:30:10,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:10,367 INFO L225 Difference]: With dead ends: 27 [2020-11-30 01:30:10,370 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 01:30:10,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:30:10,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 01:30:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 01:30:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 01:30:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-11-30 01:30:10,374 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 10 [2020-11-30 01:30:10,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:10,375 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-11-30 01:30:10,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:30:10,375 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-30 01:30:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:30:10,375 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:30:10,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:10,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:30:10,376 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:30:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:10,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1480685439, now seen corresponding path program 1 times [2020-11-30 01:30:10,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:10,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591503118] [2020-11-30 01:30:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:10,447 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 01:30:10,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591503118] [2020-11-30 01:30:10,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:10,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:30:10,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121985313] [2020-11-30 01:30:10,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:30:10,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:10,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:10,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:10,449 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-11-30 01:30:10,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:10,461 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-11-30 01:30:10,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:10,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 01:30:10,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:30:10,465 INFO L225 Difference]: With dead ends: 21 [2020-11-30 01:30:10,466 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:30:10,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:10,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:30:10,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:30:10,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:30:10,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:30:10,467 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-30 01:30:10,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:30:10,467 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:30:10,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:30:10,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:30:10,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:30:10,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:30:10,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:30:10 BasicIcfg [2020-11-30 01:30:10,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:30:10,473 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:30:10,473 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:30:10,473 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:30:10,474 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:05" (3/4) ... [2020-11-30 01:30:10,478 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:30:10,486 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-30 01:30:10,486 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-30 01:30:10,494 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-30 01:30:10,494 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:30:10,495 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:30:10,495 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:30:10,565 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f145c646-6518-408c-8de9-caf575c9de05/bin/uautomizer/witness.graphml [2020-11-30 01:30:10,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:30:10,568 INFO L168 Benchmark]: Toolchain (without parser) took 6227.20 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 57.0 MB in the beginning and 99.2 MB in the end (delta: -42.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:30:10,568 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 90.2 MB. Free memory was 49.6 MB in the beginning and 49.6 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:30:10,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.15 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 56.7 MB in the beginning and 65.6 MB in the end (delta: -8.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.77 ms. Allocated memory is still 109.1 MB. Free memory was 65.6 MB in the beginning and 63.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:30:10,575 INFO L168 Benchmark]: Boogie Preprocessor took 32.21 ms. Allocated memory is still 109.1 MB. Free memory was 63.8 MB in the beginning and 62.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,576 INFO L168 Benchmark]: RCFGBuilder took 596.85 ms. Allocated memory is still 109.1 MB. Free memory was 62.5 MB in the beginning and 68.7 MB in the end (delta: -6.2 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,577 INFO L168 Benchmark]: TraceAbstraction took 4620.64 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 68.7 MB in the beginning and 101.4 MB in the end (delta: -32.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:30:10,577 INFO L168 Benchmark]: Witness Printer took 92.77 ms. Allocated memory is still 132.1 MB. Free memory was 101.4 MB in the beginning and 99.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 90.2 MB. Free memory was 49.6 MB in the beginning and 49.6 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 787.15 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 56.7 MB in the beginning and 65.6 MB in the end (delta: -8.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.77 ms. Allocated memory is still 109.1 MB. Free memory was 65.6 MB in the beginning and 63.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.21 ms. Allocated memory is still 109.1 MB. Free memory was 63.8 MB in the beginning and 62.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 596.85 ms. Allocated memory is still 109.1 MB. Free memory was 62.5 MB in the beginning and 68.7 MB in the end (delta: -6.2 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4620.64 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 68.7 MB in the beginning and 101.4 MB in the end (delta: -32.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 92.77 ms. Allocated memory is still 132.1 MB. Free memory was 101.4 MB in the beginning and 99.2 MB in the end (delta: 2.2 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 538 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 32 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 68 PlacesBefore, 22 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 1636 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 3 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 71 SDtfs, 43 SDslu, 61 SDs, 0 SdLazy, 47 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 1120 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...