./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe034_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_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe034_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/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 25cb318ab1a29f2a64c5b78bc114eca9d9643fed ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:28:02,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:28:02,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:28:02,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:28:02,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:28:02,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:28:02,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:28:02,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:28:02,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:28:03,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:28:03,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:28:03,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:28:03,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:28:03,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:28:03,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:28:03,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:28:03,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:28:03,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:28:03,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:28:03,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:28:03,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:28:03,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:28:03,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:28:03,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:28:03,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:28:03,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:28:03,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:28:03,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:28:03,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:28:03,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:28:03,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:28:03,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:28:03,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:28:03,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:28:03,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:28:03,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:28:03,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:28:03,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:28:03,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:28:03,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:28:03,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:28:03,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:28:03,111 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:28:03,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:28:03,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:28:03,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:28:03,115 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:28:03,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:28:03,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:28:03,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:28:03,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:28:03,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:28:03,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:28:03,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:28:03,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:28:03,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:28:03,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:28:03,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:28:03,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:28:03,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:28:03,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:28:03,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:28:03,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:28:03,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:28:03,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:28:03,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:28:03,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:28:03,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:28:03,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:28:03,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:28:03,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:28:03,123 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_9e09c3cf-68ce-4e16-adef-8b99c821e848/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25cb318ab1a29f2a64c5b78bc114eca9d9643fed [2020-11-30 01:28:03,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:28:03,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:28:03,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:28:03,436 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:28:03,437 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:28:03,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe034_tso.opt.i [2020-11-30 01:28:03,512 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/data/79f58581f/73777db4f5f3479380b77d34e7f1d800/FLAGbe8cacb52 [2020-11-30 01:28:04,140 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:28:04,141 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/sv-benchmarks/c/pthread-wmm/safe034_tso.opt.i [2020-11-30 01:28:04,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/data/79f58581f/73777db4f5f3479380b77d34e7f1d800/FLAGbe8cacb52 [2020-11-30 01:28:04,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/data/79f58581f/73777db4f5f3479380b77d34e7f1d800 [2020-11-30 01:28:04,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:28:04,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:28:04,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:28:04,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:28:04,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:28:04,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:28:04" (1/1) ... [2020-11-30 01:28:04,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45ab16f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:04, skipping insertion in model container [2020-11-30 01:28:04,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:28:04" (1/1) ... [2020-11-30 01:28:04,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:28:04,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:28:04,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:28:04,866 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:28:04,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:28:05,023 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:28:05,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05 WrapperNode [2020-11-30 01:28:05,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:28:05,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:28:05,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:28:05,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:28:05,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (1/1) ... [2020-11-30 01:28:05,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (1/1) ... [2020-11-30 01:28:05,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:28:05,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:28:05,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:28:05,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:28:05,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (1/1) ... [2020-11-30 01:28:05,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (1/1) ... [2020-11-30 01:28:05,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (1/1) ... [2020-11-30 01:28:05,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (1/1) ... [2020-11-30 01:28:05,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (1/1) ... [2020-11-30 01:28:05,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (1/1) ... [2020-11-30 01:28:05,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (1/1) ... [2020-11-30 01:28:05,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:28:05,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:28:05,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:28:05,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:28:05,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/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 01:28:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:28:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-30 01:28:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:28:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:28:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-30 01:28:05,186 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-30 01:28:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-30 01:28:05,187 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-30 01:28:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-30 01:28:05,187 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-30 01:28:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:28:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-30 01:28:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:28:05,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:28:05,189 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 01:28:05,698 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:28:05,698 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 01:28:05,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:28:05 BoogieIcfgContainer [2020-11-30 01:28:05,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:28:05,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:28:05,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:28:05,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:28:05,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:28:04" (1/3) ... [2020-11-30 01:28:05,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42213dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:28:05, skipping insertion in model container [2020-11-30 01:28:05,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:28:05" (2/3) ... [2020-11-30 01:28:05,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42213dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:28:05, skipping insertion in model container [2020-11-30 01:28:05,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:28:05" (3/3) ... [2020-11-30 01:28:05,714 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2020-11-30 01:28:05,731 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 01:28:05,732 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:28:05,737 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:28:05,738 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 01:28:05,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,776 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,781 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,781 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,788 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,788 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,805 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,806 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,812 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:28:05,815 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-30 01:28:05,833 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-30 01:28:05,875 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:28:05,875 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:28:05,875 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:28:05,875 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:28:05,875 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:28:05,876 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:28:05,876 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:28:05,876 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:28:05,887 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 01:28:05,889 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-30 01:28:05,892 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-30 01:28:05,894 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-30 01:28:05,959 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-30 01:28:05,959 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-30 01:28:05,963 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 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. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-30 01:28:05,966 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-30 01:28:08,204 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-11-30 01:28:08,325 INFO L131 LiptonReduction]: Checked pairs total: 2658 [2020-11-30 01:28:08,325 INFO L133 LiptonReduction]: Total number of compositions: 68 [2020-11-30 01:28:08,332 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-30 01:28:08,365 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-30 01:28:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-30 01:28:08,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:28:08,373 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:28:08,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:08,375 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:28:08,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:08,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1479466227, now seen corresponding path program 1 times [2020-11-30 01:28:08,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:08,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032779291] [2020-11-30 01:28:08,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:08,560 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 01:28:08,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032779291] [2020-11-30 01:28:08,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:08,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:28:08,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202234510] [2020-11-30 01:28:08,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:28:08,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:08,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:28:08,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:28:08,584 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-30 01:28:08,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:08,616 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-30 01:28:08,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:28:08,618 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 01:28:08,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:28:08,634 INFO L225 Difference]: With dead ends: 362 [2020-11-30 01:28:08,634 INFO L226 Difference]: Without dead ends: 298 [2020-11-30 01:28:08,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:28:08,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-30 01:28:08,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-30 01:28:08,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-30 01:28:08,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-30 01:28:08,711 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-30 01:28:08,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:28:08,712 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-30 01:28:08,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:28:08,712 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-30 01:28:08,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:28:08,714 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:28:08,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:08,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:28:08,714 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:28:08,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:08,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1381176445, now seen corresponding path program 1 times [2020-11-30 01:28:08,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:08,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352855063] [2020-11-30 01:28:08,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:08,935 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 01:28:08,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352855063] [2020-11-30 01:28:08,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:08,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:28:08,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109012243] [2020-11-30 01:28:08,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:28:08,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:08,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:28:08,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:28:08,939 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-30 01:28:08,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:08,987 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-11-30 01:28:08,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:28:08,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-30 01:28:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:28:09,001 INFO L225 Difference]: With dead ends: 346 [2020-11-30 01:28:09,001 INFO L226 Difference]: Without dead ends: 282 [2020-11-30 01:28:09,002 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 01:28:09,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-30 01:28:09,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-30 01:28:09,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-30 01:28:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-11-30 01:28:09,039 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-11-30 01:28:09,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:28:09,039 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-11-30 01:28:09,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:28:09,040 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-11-30 01:28:09,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:28:09,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:28:09,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:09,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:28:09,042 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:28:09,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:09,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1310825236, now seen corresponding path program 1 times [2020-11-30 01:28:09,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:09,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137615661] [2020-11-30 01:28:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:09,204 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 01:28:09,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137615661] [2020-11-30 01:28:09,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:09,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:28:09,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724539216] [2020-11-30 01:28:09,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:28:09,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:09,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:28:09,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:28:09,207 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-11-30 01:28:09,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:09,265 INFO L93 Difference]: Finished difference Result 277 states and 699 transitions. [2020-11-30 01:28:09,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:28:09,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 01:28:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:28:09,272 INFO L225 Difference]: With dead ends: 277 [2020-11-30 01:28:09,272 INFO L226 Difference]: Without dead ends: 213 [2020-11-30 01:28:09,273 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 01:28:09,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-11-30 01:28:09,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2020-11-30 01:28:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-11-30 01:28:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 528 transitions. [2020-11-30 01:28:09,298 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 528 transitions. Word has length 10 [2020-11-30 01:28:09,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:28:09,298 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 528 transitions. [2020-11-30 01:28:09,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:28:09,299 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 528 transitions. [2020-11-30 01:28:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:28:09,301 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:28:09,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:09,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:28:09,302 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:28:09,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:09,303 INFO L82 PathProgramCache]: Analyzing trace with hash -346485744, now seen corresponding path program 1 times [2020-11-30 01:28:09,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:09,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659497928] [2020-11-30 01:28:09,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:09,407 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 01:28:09,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659497928] [2020-11-30 01:28:09,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:09,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:28:09,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128337667] [2020-11-30 01:28:09,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:28:09,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:09,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:28:09,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:28:09,410 INFO L87 Difference]: Start difference. First operand 213 states and 528 transitions. Second operand 5 states. [2020-11-30 01:28:09,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:09,461 INFO L93 Difference]: Finished difference Result 173 states and 387 transitions. [2020-11-30 01:28:09,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:28:09,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-30 01:28:09,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:28:09,463 INFO L225 Difference]: With dead ends: 173 [2020-11-30 01:28:09,463 INFO L226 Difference]: Without dead ends: 136 [2020-11-30 01:28:09,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:28:09,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-11-30 01:28:09,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-11-30 01:28:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-30 01:28:09,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-11-30 01:28:09,471 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-11-30 01:28:09,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:28:09,471 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-11-30 01:28:09,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:28:09,471 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-11-30 01:28:09,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:28:09,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:28:09,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:09,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:28:09,473 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:28:09,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:09,474 INFO L82 PathProgramCache]: Analyzing trace with hash 685431305, now seen corresponding path program 1 times [2020-11-30 01:28:09,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:09,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218463375] [2020-11-30 01:28:09,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:09,573 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 01:28:09,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218463375] [2020-11-30 01:28:09,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:09,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:28:09,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807065504] [2020-11-30 01:28:09,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:28:09,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:09,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:28:09,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:28:09,576 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 6 states. [2020-11-30 01:28:09,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:09,655 INFO L93 Difference]: Finished difference Result 119 states and 261 transitions. [2020-11-30 01:28:09,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:28:09,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-30 01:28:09,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:28:09,657 INFO L225 Difference]: With dead ends: 119 [2020-11-30 01:28:09,657 INFO L226 Difference]: Without dead ends: 109 [2020-11-30 01:28:09,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:28:09,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-30 01:28:09,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-30 01:28:09,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-30 01:28:09,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-11-30 01:28:09,662 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-11-30 01:28:09,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:28:09,663 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-11-30 01:28:09,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:28:09,663 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-11-30 01:28:09,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:28:09,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:28:09,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:09,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:28:09,665 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:28:09,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:09,666 INFO L82 PathProgramCache]: Analyzing trace with hash 461507696, now seen corresponding path program 1 times [2020-11-30 01:28:09,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:09,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272935849] [2020-11-30 01:28:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:09,729 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 01:28:09,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272935849] [2020-11-30 01:28:09,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:09,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:28:09,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404310427] [2020-11-30 01:28:09,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:28:09,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:09,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:28:09,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:28:09,731 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-11-30 01:28:09,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:09,758 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-11-30 01:28:09,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:28:09,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-30 01:28:09,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:28:09,759 INFO L225 Difference]: With dead ends: 135 [2020-11-30 01:28:09,759 INFO L226 Difference]: Without dead ends: 55 [2020-11-30 01:28:09,759 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 01:28:09,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-30 01:28:09,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-30 01:28:09,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-30 01:28:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-11-30 01:28:09,761 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-11-30 01:28:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:28:09,762 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-11-30 01:28:09,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:28:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-11-30 01:28:09,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:28:09,762 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:28:09,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:09,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:28:09,763 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:28:09,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:09,763 INFO L82 PathProgramCache]: Analyzing trace with hash 356647694, now seen corresponding path program 2 times [2020-11-30 01:28:09,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:09,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975664572] [2020-11-30 01:28:09,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:09,982 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 01:28:09,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975664572] [2020-11-30 01:28:09,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:09,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 01:28:09,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999880772] [2020-11-30 01:28:09,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:28:09,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:09,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:28:09,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:28:09,984 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 10 states. [2020-11-30 01:28:10,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:10,215 INFO L93 Difference]: Finished difference Result 87 states and 149 transitions. [2020-11-30 01:28:10,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 01:28:10,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-30 01:28:10,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:28:10,216 INFO L225 Difference]: With dead ends: 87 [2020-11-30 01:28:10,216 INFO L226 Difference]: Without dead ends: 63 [2020-11-30 01:28:10,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:28:10,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-30 01:28:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-11-30 01:28:10,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-30 01:28:10,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 102 transitions. [2020-11-30 01:28:10,220 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 102 transitions. Word has length 18 [2020-11-30 01:28:10,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:28:10,220 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 102 transitions. [2020-11-30 01:28:10,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:28:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 102 transitions. [2020-11-30 01:28:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:28:10,221 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:28:10,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:10,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:28:10,221 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:28:10,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:10,222 INFO L82 PathProgramCache]: Analyzing trace with hash -2018587562, now seen corresponding path program 3 times [2020-11-30 01:28:10,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:10,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900760725] [2020-11-30 01:28:10,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:10,398 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 01:28:10,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900760725] [2020-11-30 01:28:10,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:10,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 01:28:10,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688640871] [2020-11-30 01:28:10,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:28:10,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:10,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:28:10,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:28:10,400 INFO L87 Difference]: Start difference. First operand 59 states and 102 transitions. Second operand 10 states. [2020-11-30 01:28:10,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:10,567 INFO L93 Difference]: Finished difference Result 73 states and 119 transitions. [2020-11-30 01:28:10,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:28:10,567 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-30 01:28:10,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:28:10,568 INFO L225 Difference]: With dead ends: 73 [2020-11-30 01:28:10,568 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 01:28:10,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:28:10,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 01:28:10,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2020-11-30 01:28:10,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-30 01:28:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-11-30 01:28:10,570 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-11-30 01:28:10,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:28:10,571 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-11-30 01:28:10,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:28:10,571 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-11-30 01:28:10,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:28:10,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:28:10,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:10,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:28:10,572 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:28:10,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:10,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1017008488, now seen corresponding path program 4 times [2020-11-30 01:28:10,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:10,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039474516] [2020-11-30 01:28:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:10,763 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 01:28:10,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039474516] [2020-11-30 01:28:10,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:10,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 01:28:10,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919435781] [2020-11-30 01:28:10,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:28:10,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:10,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:28:10,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:28:10,765 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 10 states. [2020-11-30 01:28:10,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:10,988 INFO L93 Difference]: Finished difference Result 49 states and 69 transitions. [2020-11-30 01:28:10,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 01:28:10,989 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-30 01:28:10,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:28:10,990 INFO L225 Difference]: With dead ends: 49 [2020-11-30 01:28:10,990 INFO L226 Difference]: Without dead ends: 27 [2020-11-30 01:28:10,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:28:10,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-30 01:28:10,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-30 01:28:10,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-30 01:28:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-11-30 01:28:10,991 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 18 [2020-11-30 01:28:10,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:28:10,992 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-11-30 01:28:10,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:28:10,992 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2020-11-30 01:28:10,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:28:10,992 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:28:10,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:28:10,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:28:10,993 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:28:10,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:28:10,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1533397848, now seen corresponding path program 5 times [2020-11-30 01:28:10,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:28:10,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565129311] [2020-11-30 01:28:10,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:28:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:28:11,165 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 01:28:11,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565129311] [2020-11-30 01:28:11,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:28:11,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 01:28:11,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622416280] [2020-11-30 01:28:11,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:28:11,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:28:11,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:28:11,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:28:11,167 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 10 states. [2020-11-30 01:28:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:28:11,276 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2020-11-30 01:28:11,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:28:11,276 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-30 01:28:11,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:28:11,276 INFO L225 Difference]: With dead ends: 26 [2020-11-30 01:28:11,276 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:28:11,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:28:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:28:11,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:28:11,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:28:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:28:11,278 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-30 01:28:11,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:28:11,278 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:28:11,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:28:11,278 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:28:11,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:28:11,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:28:11,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:28:11 BasicIcfg [2020-11-30 01:28:11,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:28:11,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:28:11,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:28:11,282 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:28:11,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:28:05" (3/4) ... [2020-11-30 01:28:11,286 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:28:11,297 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-30 01:28:11,297 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-30 01:28:11,298 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-30 01:28:11,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-30 01:28:11,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:28:11,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:28:11,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:28:11,377 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9e09c3cf-68ce-4e16-adef-8b99c821e848/bin/uautomizer/witness.graphml [2020-11-30 01:28:11,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:28:11,382 INFO L168 Benchmark]: Toolchain (without parser) took 6979.72 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 76.0 MB in the beginning and 44.6 MB in the end (delta: 31.4 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:11,383 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 102.8 MB. Free memory is still 62.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:28:11,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.67 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 59.0 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:11,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.68 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 57.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:11,385 INFO L168 Benchmark]: Boogie Preprocessor took 27.01 ms. Allocated memory is still 102.8 MB. Free memory was 56.9 MB in the beginning and 55.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:28:11,385 INFO L168 Benchmark]: RCFGBuilder took 601.14 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 55.7 MB in the beginning and 91.0 MB in the end (delta: -35.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:11,386 INFO L168 Benchmark]: TraceAbstraction took 5579.69 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 90.5 MB in the beginning and 46.7 MB in the end (delta: 43.7 MB). Peak memory consumption was 70.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:11,387 INFO L168 Benchmark]: Witness Printer took 98.84 ms. Allocated memory is still 148.9 MB. Free memory was 46.7 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:28:11,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 102.8 MB. Free memory is still 62.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 620.67 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 59.0 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.68 ms. Allocated memory is still 102.8 MB. Free memory was 59.0 MB in the beginning and 57.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.01 ms. Allocated memory is still 102.8 MB. Free memory was 56.9 MB in the beginning and 55.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 601.14 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 55.7 MB in the beginning and 91.0 MB in the end (delta: -35.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5579.69 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 90.5 MB in the beginning and 46.7 MB in the end (delta: 43.7 MB). Peak memory consumption was 70.1 MB. Max. memory is 16.1 GB. * Witness Printer took 98.84 ms. Allocated memory is still 148.9 MB. Free memory was 46.7 MB in the beginning and 44.6 MB in the end (delta: 2.1 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 948 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 86 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.4s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2658 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 216 SDtfs, 196 SDslu, 716 SDs, 0 SdLazy, 563 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 10 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 10170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...